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OPTIMOD-FM DIGITAL

OPERATION

3-101

Distortion Control

: In 1977, Orban was the first company to patent

cialize a psychoacoustic model to estimate and control audible clipping distortion.
The 8600 also uses a psychoacoustic model, but in a far more sophisticated way that
has some similarities to audio codec technology.

Figure 3-5 on page 3-99 is a twelfth-octave ratio that compares the spectrum of the
8500 and 8600 outputs in a more detailed way than the third-octave ratio seen in
Figure 3-4. It shows the 8600’s 4.6 dB suppression of (mainly harmonic) clipping dis-
tortion centered at 3.668 kHz caused by sustained electric guitar riding on top of
bass.

Figure 3-6 on page 3-100 shows a piece of material that has been used by others to
demonstrate distortion control. This material consists of Clarkson’s humming over a

3

US patents 4,208,548 & 4,241,266, used in Optimod-AM 9000A

Figure 3-7

Level 42, “Starchild”

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Содержание OPTIMOD-FM 8600S

Страница 1: ...Operating Manual OPTIMOD FM 8600S Digital Audio Processor Version 2 1 Software ...

Страница 2: ...is symbol wherever it appears alerts you to the presence of uninsulated dangerous voltage inside the enclosure voltage that may be sufficient to constitute a risk of shock This symbol wherever it appears alerts you to important operating and maintenance instructions in the accompa nying literature Read the manual In accordance to the WEEE waste electrical and electronic equipment direc tive of the...

Страница 3: ... spilled into the enclosure through openings Damage Requiring Service The appliance should be serviced by qualified service personnel when The power supply cord or the plug has been damaged or Objects have fallen or liquid has been spilled into the appliance or The appliance has been exposed to rain or The appliance does not appear to operate normally or exhibits a marked change in performance or ...

Страница 4: ... de service aprésvente autorisé Safety Instructions Spanish Hacer funcionar el aparato sólo con la tensión y clase de corriente señaladas en la placa indicadora de características Reemplazar los fusibles sólo por otros de la misma intensidad de corriente y sistema de desconexión No poner nunca los fusibles en puente Proteger el cable de alimentación contra toda clase de daños No doblar o apretar e...

Страница 5: ...n you pack the unit for shipping 1 Tighten all screws on any barrier strip s so the screws do not fall out from vibration 2 Wrap the unit in its original plastic bag to avoid abrading the paint 3 Seal the inner and outer cartons with tape If you are returning the unit permanently for credit be sure to enclose The Manual s The Registration Warranty Card The Line Cord All Miscellaneous Hardware incl...

Страница 6: ... across a rug can gen erate a static charge of 20 000 volts This is the spark or shock you may have felt when touching a doorknob or some other conductive surface A much smaller static discharge is likely to destroy one or more of the CMOS semiconductors employed in OPTIMOD FM Static damage will not be covered under warranty There are many common sources of static Most involve some type of frictio...

Страница 7: ...Operating Manual OPTIMOD FM 8600S Digital Audio Processor Version 2 1 Software ...

Страница 8: ...F OPTIMOD FM 1 13 Optimal Control of Peak Modulation Levels 1 13 Best Location for OPTIMOD FM 1 14 If the transmitter is not accessible 1 14 If the transmitter is accessible 1 15 Transmission from Studio to Transmitter 1 16 Digital Links 1 16 Composite Baseband Microwave STLs 1 18 Dual Microwave STLs 1 18 Analog Landline PTT Post Office Line 1 19 STL and Exciter Overshoot 1 19 USING LOSSY DATA RED...

Страница 9: ...ernal AGC 2 12 Figure 2 4 8200ST Jumper Settings Factory Configuration 2 13 QUICK SETUP 2 15 ANALOG AND DIGITAL I O SETUP 2 26 AUTOMATION USING THE 8600S S INTERNAL CLOCK 2 39 SECURITY AND PASSCODE PROGRAMMING 2 42 To Create a Passcode 2 42 To Edit a Passcode 2 43 To Delete a Passcode 2 43 To Lock the Front Panel Immediately 2 43 To Program local lockout 2 44 To Unlock the Front Panel 2 44 Dial up...

Страница 10: ...ntrols and defaults 2 100 Using Processing Presets 2 101 Using the Terminal Server 2 102 Using Telnet to Control the Terminal Server 2 102 Security 2 104 RDS Terminal Commands 2 104 Table 2 2 Preset Terminal RDS controls and defaults 2 107 Alternative Frequency Channel Numbers 2 107 Table 2 3 Alternative Frequency Channel Numbers 2 108 Program Type PTY 2 108 Table 2 4 Program Type PTY 2 108 SCA Su...

Страница 11: ...r Controls 3 47 8600S MX Technology Peak Limiter Controls 3 48 Table 3 7 MX Technology Peak Limiter Controls 3 49 THE TWO BAND STRUCTURE 3 51 The Protection Presets 3 51 Setting Up the Two Band Structure for Classical Music 3 52 Customizing the Settings 3 53 The Two Band Structure s Setup Controls 3 53 Table 3 8 Two Band Controls 3 54 THE FIVE BAND STRUCTURE 3 57 Putting the Five Band Structure on...

Страница 12: ...modify AUTOMATION 3 94 To group multiple 8600S units 3 95 Operation Using the Keyboard 3 95 To Quit the Program 3 95 About Aliases created by Optimod 8600S PC Remote Software 3 95 Multiple Installations of Optimod 8600S PC Remote 3 96 White Paper Measuring the Improvements in Optimod FM 8600 and 8600S MX FM Peak Limiting Technology 3 98 Figure 3 4 Madonna Get Together remix third octave difference...

Страница 13: ...Match When the Receiver Crossfades 5 7 Loudness is unexpectedly low from the analog FM processing chain 5 7 Digital Radio Loudness Cannot be Set Using the Digital Output 100 Peak Level Control 5 7 Loudness Drops Momentarily During HD Radio Analog Digital Crossfades 5 7 BS 1770 Safety Limiter produces too much gain reduction 5 7 HD Frequency Response is Limited to 15 kHz 5 7 You Cannot Set Any Outp...

Страница 14: ...ts 6 9 Output Circuits 6 11 DSP Circuit 6 13 Power Supply 6 13 ABBREVIATIONS 6 14 PARTS LIST 6 16 Obtaining Spare Parts 6 16 Control Board 6 16 Combined Input Output and DSP I O DSP Board 6 18 Composite SCA Daughterboard 6 23 Display Board 6 23 SCHEMATICS AND PARTS LOCATOR DRAWINGS 6 24 ...

Страница 15: ...L and R Analog Inputs Schematic 2 of 12 6 36 L and R Analog Outputs Schematic 3 of 12 6 37 Composite And Pilot Reference Signal Generators Schematic 4a of 12 6 38 Composite SCA Daughterboard Schematic Parts Locator 4b of 12 6 39 Digital I O Sync Input Schematic 5 of 12 6 40 DSP Enhanced Serial Audio Inter face Schematic 6 of 12 6 41 DSP Control Interface Schematic 7 of 12 6 42 DSP External Memory ...

Страница 16: ...ntrol 2 46 analog fallback 2 29 analog I O 1 10 analog input circuit description 6 9 ref level I O setup 2 27 analog input 2 6 analog landline 1 19 analog output circuit description 6 11 analog output 2 6 API adjusting delay time 2 54 delay on off 2 53 55 archiving presets 3 92 Attack 2 Band Bass 2 56 2 Band Master 56 AGC Bass 3 40 AGC Master 3 40 Multiband 3 67 audio connections 2 5 input connect...

Страница 17: ...l functionality 3 77 BS 1770 Safety Limiter 2 3 Button bar FM HD coupling 3 71 buttons escape 3 1 modify 3 1 next 3 1 previous 3 1 RECALL 3 1 setup 3 1 soft buttons 3 1 buzz 5 1 bypass local 1 27 PC remote 1 28 remote interface 1 28 test mode 1 24 Bypass mode activate via GPI 2 45 C cable shielding 2 11 type recommended for analog I O 2 5 CD mastering and processing 3 6 chassis getting inside 4 2 ...

Страница 18: ...ut 2 6 contrast 3 1 control scripted 2 51 control coupling FM and HD 3 77 Control coupling FM HD 3 71 control knob 3 1 controls contrast 3 1 HD audio 3 77 Speech Detect 3 10 corrosion 4 1 Coupling Control 3 64 Crossfade 3 75 Crossover 2 Band 3 56 AGC 3 40 Band 1 Band 2 3 68 D D A converter circuit description 6 11 specification 6 2 De Essing in HD channel 3 79 Defeating final clipper 2 29 delay on...

Страница 19: ...ry presets selecting 2 22 Factory presets Table of 3 22 factory presets 1 7 factory service 5 15 Filter Pilot Protection 3 42 Final Clip Drive 3 47 Final clipper Defeating 2 29 Firewall 2 62 90 Firmware updating 8500 2 94 five band full modify control list 3 59 five band 3 57 Five band structure Setup controls 3 59 Five band structure 3 19 FM HD mode 3 71 FM polarity changing via API 2 54 control ...

Страница 20: ...nes low delay monitoring 1 27 low delay monitoring 2 31 headphones 1 25 HF Clipping 3 47 HF enhancer 3 9 High Frequency Enhancer 3 34 High frequency limiter 3 9 High Frequency Limiter 3 68 high pass filter 30 Hz 3 34 hum 5 1 I I O AES EBU 2 7 connections 2 2 I O board replacing 4 4 IC opamps troubleshooting 5 14 Idle Gain 3 40 Independent mode 3 71 input analog connecting 2 6 analog specifications...

Страница 21: ... Compressor limiter 3 10 Lookahead 3 56 look ahead limiter 3 14 71 Look ahead limiting Defined 3 4 lossy data reduction in studio 1 20 NICAM 1 17 used in STLs 16 loudness insufficient 5 8 insufficient due to poor peak control 5 1 Loudness adjusting HD FM 5 7 match HD and FM channels 3 76 79 Loudness and distortion 3 5 loudness control in digital radio 2 35 loudness GR meter 2 3 loudness meter 1 23...

Страница 22: ...es 1 6 N NAB Broadcast and Audio System Test CD 4 6 Netcat automated control using 2 52 automation using 2 51 network timeserver 2 57 networking 2 47 News format 3 28 NEXT button 3 1 NICAM 1 17 noise troubleshooting 5 3 null modem cable communicating through 2 63 null modem cable 2 60 O Out level control HD 3 76 output analog output level trim adjustment 4 8 analog connecting 2 6 analog specificat...

Страница 23: ... 4 power supply circuit description 6 13 Orban part 6 14 testing 4 7 power supply board reattaching 4 4 pre emphasis defeating 2 18 19 quick setup 2 16 Preset 8400 compatibility 3 93 recall via GPI 2 45 Recalling via terminal program 2 53 restoring archived 3 92 presets backup 3 92 customizing 3 16 factory 1 7 protection 3 51 saving user 3 8 18 sharing between 5500s 3 94 user presets 1 8 Presets f...

Страница 24: ... 3 28 routine maintenance 4 1 RS232 testing 4 14 RS 232 connector 2 4 RS 232 interface circuit description 6 8 S sample rate internal specification 6 1 setting output 2 19 Sample Rate control HD 3 76 sample rate conversion overshoot in 1 4 sample rate converter testing 4 10 saving user presets 3 8 18 SCA composite meter does not indicate 1 22 input specifications 6 4 inputs 1 10 interference from ...

Страница 25: ...MPX power controller and 3 83 selecting 1 8 Stereo enhancement 3 8 Stereo Enhancer Amount 3 35 Depth 3 35 Diffusion 3 35 In Out 3 35 Ratio Limit 3 35 Style 3 35 Stereo Mono HD output 3 74 STL systems 1 16 18 studio chassis mode 2 17 studio transmitter link 1 16 subassembly removal and replacement 4 2 subcarrier input specifications 6 4 inputs 2 10 modulation reduction 2 24 subcarrier input 2 8 sub...

Страница 26: ...t panel 2 44 unpacking 2 1 Updating software 2 94 Urban format 3 29 user presets archiving 3 19 creating 3 8 16 18 user presets 1 8 V Vestigial sideband 3 11 VPN setting up 2 62 90 W warranty 1 29 Warranty 1 29 warranty 6 6 whistle on air troubleshooting 5 4 Window Release 3 39 Window Size 3 39 Windows installing services 2 60 Windows 2000 adding direct serial connection 2 64 68 84 Adding direct s...

Страница 27: ...t audio quality in FM stereo broadcasting Because all processing is performed by high speed mathematical calculations within Freescale 24 bit digital signal proc essing chips the processing has cleanliness quality and stability over time and tem perature that is unmatched by analog processors OPTIMOD FM 8600S is descended from the industry standard OPTIMOD FM audio processors Thousands of these pr...

Страница 28: ...D output prevents the codec from wasting precious bits encoding clipping distortion products allowing the codec to use its entire bit budget to encode the desired pro gram material Thanks to a base sample rate of 64 kHz throughout the 8600SHD s processing the HD output can be set for audio bandwidths between 15 and 20 kHz Many codecs operate better when fed 15 kHz audio because this enables them t...

Страница 29: ...ns mission links by providing bandwidth limiting and overshoot compensated 15 kHz low pass filters ahead of the 8600S s audio outputs and stereo encoder The 8600S has an internal DSP based stereo encoder with a patented half cosine interpolation composite limiter operating at 512 kHz sample rate to generate the pilot tone stereo baseband signal and control its peak lev el The composite limiter is ...

Страница 30: ...ut levels are sepa rately adjustable for the analog and digital outputs Each output can emit the analog FM processed signal the analog FM processed signal with diversity delay applied the digital radio processed signal or the low delay monitor signal A loop through connection is provided to enable a ratings encoder such as Nielsen Audio to be embedded in the audio processing See Connecting a Ratin...

Страница 31: ...mV The 8600S precisely controls the audio bandwidth of its analog FM process ing to 16 5 kHz This prevents significant overshoots in uncompressed digital links operating at a 44 1 kHz sample rate or higher and prevents interference to the pilot tone and RDS or RBDS subcarrier The bandwidth of the 8600S s digi tal radio output is adjustable in 1 kHz increments between 15 kHz and 20 kHz The 8600S ha...

Страница 32: ...ch and high frequency clarity This advanced technology requires more input to output delay than the older structures so it is impractical for tal ent to monitor these structures off air with headphones The 8600S offers a spe cial low delay monitor output for this purpose The 8600S can increase the density and loudness of the program material by multiband compression limiting and clipping improving...

Страница 33: ...te level setting in any system OPTIMOD FM s software can be upgraded by running Orban supplied down loadable upgrade software on a PC The upgrade can occur remotely through the 8600S s Ethernet port or serial port connected to an external modem or lo cally by connecting a Windows computer to the 8600S s serial port through the supplied null modem cable Silence alarm and digital audio fault tally o...

Страница 34: ...e old version or saving under a new name In all cases the orig inal Factory Preset remains for you to return to if you wish User Presets inherit the structure of their parent Factory Presets Five Band Two Band Ultra Low Latency Five Band or Stand Alone Stereo Encoder The only way you can choose the structure of a User preset is to edit it from a Factory preset hav ing that structure or to edit it ...

Страница 35: ...r through PC Remote Both analog and digital outputs are active continuously The 8600S s output sample rate and 19 kHz pilot tone frequency can be locked to the 8600S s internal crystal clock to the sample rate present at its AES3 input or to a compatible reference signal 10 MHz 1 x wordclock AES3id or AES11id applied to the appropriate sync input The 8600S can apply J 17 de emphasis to signals rec...

Страница 36: ...age 2 9 Independent level control of each output is available via software see step 6 on page 2 29 Subcarriers The stereo encoder has two unbalanced 60 subcarrier SCA inputs with rear panel BNC connectors to accept any subcarrier at or above 23 kHz The subcarriers are mixed into each composite output and their level is not affected by the compos ite level control for that output The 8600S does not...

Страница 37: ...y output configured to emit the low delay monitor signal Independently activate and defeat the diversity delay applied to the analog dig ital and composite outputs Reduce the stereo main and subchannel modulation to compensate for transmit ter overshoot and subcarrier inputs SCAs The remote control of overshoot compensation and SCA modulation see page 2 45 is not latching You must supply a continu...

Страница 38: ...nything else that you can do from the 8600S s front panel controls The program displays all of the 8600S s LCD meters on the computer screen to aid remote adjustment RS 232 Serial Port 8600 PC Remote can communicate via modem or direct connection between the computer and the 8600 through their RS 232 serial ports See Connecting to the 8600 s Ethernet Port or Serial Port via a Terminal Program on a...

Страница 39: ...be reduced to accommodate the larger peaks Re duced average modulation level will cause reduced loudness and a poorer signal to noise ratio at the receiver Landline equalizers transformers and 15 kHz low pass filters and pre emphasis networks in stereo encoders typically introduce frequency response errors and non constant group delay There are three criteria for preservation of peak levels throug...

Страница 40: ...pes of digital paths This situation is not ideal because artifacts that cannot be controlled by the audio processor can be introduced by the link to the transmitter by transmit ter peak limiters or by the external stereo encoder If the transmitter is not accessible All audio processing must be done at the studio and you must tolerate any damage that occurs later If you can obtain a broadband 0 75 ...

Страница 41: ...o cause perceptible changes in the stereo image 3 You will achieve a louder sound on the air with better control of peak modulation than if you use most external stereo encoders An exception is Orban s 5518 stereo encoder which does not add overshoot and contains its own overshoot limiter and composite limiter equivalent to the one in the 8600S when operated in its stand alone stereo encoder mode ...

Страница 42: ... link that passes un processed audio should have very low noise and low non linear distortion but its transient response is not important A link that passes processed audio does not need as low a noise floor as a link passing unprocessed audio However its transient response is critical At the current state of the art an uncompressed digital link using digital inputs and outputs to pass audio in le...

Страница 43: ...ese signals can be passed without additional overshoot by equally well by any link with 44 1 kHz or higher sample fre quency Currently available sample rate converters use phase linear filters which have con stant group delay at all frequencies If they do not remove spectral energy from the original signal the sample rate conversion whether upward or downward will not add overshoot to the signal T...

Страница 44: ...omposite microwave STLs However problems include gain and phase matching of the left and right channels overloads induced by pre emphasis and re quirements that the audio applied to the microwave transmitters be processed to prevent over modulation of the microwave system Lack of transparency in the path will cause overshoot Unless carefully designed du al microwave STLs can introduce non constant...

Страница 45: ...tential overshoot The Orban 8200ST can be readily con figured to produce a pre emphasized output Further it is common for a microwave STL to bounce because of a large infrasonic peak in its frequency response caused by an under damped automatic frequency control AFC phase locked loop This bounce can increase the STL s peak carrier de viation by as much as 2dB reducing average modulation Many comme...

Страница 46: ...ve the threshold of masking such that it is heard In addition at least one other mechanism can cause the noise to become audible at the radio OPTIMOD FM s multiband limiter performs an automatic equalization function that can radically change the frequency balance of the program This can cause noise that would otherwise have been masked to become unmasked because the psychoacoustic masking conditi...

Страница 47: ...der indicates the true peak level Most modern studio audio de vices have a clipping level of no less than 21 dBu and often 24 dBu or more So the studio standardizes on a maximum program indication on the meter that is low er than the clipping level so those peaks that the meter does not indicate will not be clipped Line up level is usually at this same maximum meter indication In facili ties that ...

Страница 48: ...d right input level is shown on a VU type scale 0 to 27 dB while the metering indicates absolute instantaneous peak much faster than a standard PPM or VU me ter The input meter is scaled so that 0 dB corresponds to the absolute maximum peak level that the 8600S can accept 27 dBu If you are using the AES3 digital in put the maximum digital word at the input corresponds to the 0 dB point on the 8600...

Страница 49: ...only one Loudness Level meter indication for both stereo channels The unit of measure in the BS 1770 meter is LKFS or LUKS which are the same dif fering only in nomenclature A change of 1 LUFS is the same as a change of 1 dB In the digital radio chain LKFS and LUFS are absolute loudness measurements with respect to digital full scale LK and LU without the FS are relative loudness measurements wher...

Страница 50: ...when the modulation is changed from pure single channel to L R modulation while the peak audio level is held con stant When the 8600S s left right analog output is switched to FLAT a de emphasis filter is inserted between output of the 8600S s audio processing and its line output Thus as the frequency of the Test Tone is changed the level at the 8600S s line output will follow the selected de emph...

Страница 51: ...sets other than those with LL low latency or UL ultra low latency in their names An 18 ms delay is workable for most talent although it may require some acclimatization because 18 ms is below the psychoacoustic echo fusion threshold which means that talent will not hear discrete slap echoes in their headphones This means that they can monitor comfortably off air without being distracted or confuse...

Страница 52: ...s simultaneously with other code so unlike the similar structure in Orban s Optimod 8300 it does not require a code re load and does not cause a gap in programming The only way to create an ultra low latency user preset is to start with a UL factory preset and then edit that preset UL user presets cannot be directly converted to low latency or optimum latency presets because the preset customizati...

Страница 53: ... that it is always de emphasized even if the Analog Output is set with pre emphasis EAS Test For stations participating in the Emergency Alert System EAS in the United States broadcast of EAS tones and data can be accomplished in three different ways 1 Run EAS tones and data through the 8600S Note that 8600S processing may not allow the full modulation level as required by EAS standards It may the...

Страница 54: ... the GPI port programmed as BYPASS b Begin EAS broadcast c When the EAS broadcast is finished switch the 8600S from BYPASS mode by a momentary command from your station s remote control to the GPI port programmed as EXIT TEST You may also choose to insert EAS broadcast tones and data directly into the transmitter thus bypassing the 8600S for the duration of the EAS tones and data broadcast PC Cont...

Страница 55: ...r ship your Orban products prepaid to our service department Be sure to include a copy of your sales slip as proof of purchase date We will not repair transit damage under the no charge terms of this warranty Orban will pay return shipping See Technical Support on page 5 15 No other warranty written or oral is authorized for Orban Products This warranty gives you specific legal rights and you may ...

Страница 56: ......

Страница 57: ...ean 4 Rack mounting screws 10 32 x with washers 10 1 PC Remote Software CD B Save all packing materials If you should ever have to ship the 8600S e g for servicing it is best to ship it in the original carton with its packing materials because both the carton and packing material have been carefully designed to protect the unit C Complete the Registration Card and return it to Orban please The Reg...

Страница 58: ...rectly to the 8600S chassis If you need to change the plug to meet your country s standard and you are qualified to do so see Figure 2 1 Otherwise purchase a new mains cord with the correct line plug attached 3 Mount the 8600S in a rack The 8600S requires one standard rack unit 1 inches 6 4 cm There should be a good ground connection between the rack and the 8600S chassis check this with an ohmmet...

Страница 59: ...ropri ate REMOTE INTERFACE terminals The terminals can be connected together and then connected to ground at pin 17 to create a Remote Common A current limited 12VDC source is available on pin 25 If you use 48V connect a 2k 10 2 watt carbon composition resistor in series with the Remote Common or the terminal to provide current limiting In a high RF environment these wires should be short and shou...

Страница 60: ...rk See Networking on page 2 47 Procedures and instructions for connecting to a PC are subject to development and change We advise you to download the latest version of this manual in pdf format from ftp orban com 8600S Documentation You can use Adobe s pdf reader application to open and read this file If you do not have the pdf reader it is available for free download from www adobe com See Instal...

Страница 61: ... a BNC connector accepts AES3 and AES11 sync signals This in put becomes the input to your Optimod s stereo encoder when DO2 FEEDS is set to RATINGS allowing a ratings encoder to be inserted between the output of the audio processing and the input to the stereo encoder This maintains consistently high au dio drive levels into the ratings encoder while allowing the 8600S s composite limiter to be u...

Страница 62: ...the same whether the driving source is balanced or unbal anced Connect the red or white wire to the pin on the XLR type connector 2 or 3 that is considered HIGH by the standards of your organization Connect the black wire to the pin on the XLR type connector 3 or 2 that is considered LOW by the standards of your organization In low RF fields like a studio site not co located with an RF transmitter...

Страница 63: ... that you use Digital Output 1 to drive the digital radio transmitter The BS 1770 safety limiter in the analog processing chain is calibrated with reference to 100 modulation see page 1 24 and is usable with the analog digital and composite outputs The inputs and outputs are all equipped with sample rate converters and can oper ate at 32 44 1 48 88 2 and 96 kHz Per the AES3 standard each digital i...

Страница 64: ... the AES 2 SOURCE con trol to AGC RATINGS in PC Remote or AGC RATI on the Optimod Between your Optimod s left right audio processing and stereo encoder main taining consistently high audio drive levels into the ratings encoder while allow ing your Optimod s composite limiter to be used Set the AES 2 SOURCE control to LIMIT RATINGS in PC Remote or LIM RATI on the Optimod In Rating Encoder mode if a...

Страница 65: ...le The frequencies in the stereo baseband are low by comparison to RF and video and the characteristic impedance of coax ial cable is not constant at very low frequencies Therefore the transmis sion system will usually have more accurate amplitude and phase re sponse and thus better stereo separation if the coax is driven by a very low impedance source and is terminated by greater than 1k at the e...

Страница 66: ...n SCA signal move the link on jumper J6 on the Composite SCA daughter board from pins 3 and 4 to pins 1 and 2 To access J6 remove the 8600S s top cover according to the instructions in step 1 on page 4 2 The schematic showing J6 is on page 6 38 Connect your subcarrier generator s to the 8600S s subcarrier input s with coaxial cable terminated with BNC connectors The subcarrier inputs have greater ...

Страница 67: ...ched in a hit or miss manner However with care it is possible to wire an audio studio so that it provides maximum protection from power faults and is free from ground loops which induce hum and can cause oscilla tion In an ideal system All units in the system should have balanced inputs In a modern system with low output impedances and high input impedances a balanced input will pro vide common mo...

Страница 68: ...ded through the equipment rack in which the 8600S is mounted The rack should be connected to a solid earth ground by a wide copper strap wire is completely ineffective at VHF because of the wire s self inductance Studio Level Controller Installation optional Skip this section if you are not using a studio level controller ahead of the 8600S Continue with Quick Setup on page 2 15 If you are using a...

Страница 69: ... CLIPPER OFF JE JF LEFT OUTPUT RIGHT OUTPUT JE JF LEFT OUTPUT RIGHT OUTPUT FLAT PRE EMPHASIZED JB JC LEFT OUTPUT RIGHT OUTPUT JB JC LEFT OUTPUT RIGHT OUTPUT PEAK AVG Clipper Jumpers Output Pre Emphasis Jumpers Line up Level Jumpers Figure 2 4 8200ST Jumper Settings Factory Configuration ...

Страница 70: ... information about installa tion audio input and audio output connections to the 8200ST 3 Set 8200ST Output Level with tone A Press the TONE button on the 8200ST The TONE lamp should light and the modulation meters should indicate 0 If they do not re strap jumpers JB and JC to peak Refer to Figure 2 4 on page 2 13 The 8200ST is now producing a 400Hz sine wave at each output The peak level of this ...

Страница 71: ...Setup guides you through 8600S setup It is appropriate for users without spe cial or esoteric requirements Following this section you can find more detailed in formation regarding setup beyond the Quick Setup screens In most cases you will not need this extra information For the following adjustments use the appropriately labeled soft button to choose the parameter you wish to adjust To change a p...

Страница 72: ... Hold down the appropriate soft button while turning the knob to enter the hour minute and seconds Enter seconds slightly ahead of the correct time B Wait until the entered time agrees with the correct time Then press the ENTER TIME button to set the clock 4 Set the date Hold down the appropriate soft button while turning the knob to enter the day month and year 5 Set up Daylight Saving Time Summe...

Страница 73: ...the AGC function in the 8600S continues to work The Orban 4000 is a transmission system overload protection device it is normally operated be low threshold It is not designed to perform an AGC or gain riding function and it cannot substitute for the AGC function in the 8600S 8 Select your primary input analog or digital A Press the Next button B If your main input source is digital turn the knob t...

Страница 74: ...e 8600S s COMPOSITE LIMITER DRIVE control is set to 0 or OFF 10 Configure the analog outputs A Set analog output feed a Press the Next button b Turn the knob to choose FM FM Delay Monitor or HD The HD selection will only be available if your unit is an 8600SHD B Set analog output to be flat or pre emphasized a Press the Next button b Skip this step if you will not be using the analog left right ou...

Страница 75: ...plies 50 or 75µs de emphasis after the processing Regardless of the setting of this control the processing is always inter nally pre emphasized and thus always controls peaks to follow the 50 or 75µs pre emphasis curve C Set Digital Output 2 sample rate a Press the Next button b Skip this step if you will not be using Digital Output 2 Turn the knob to set the Digital OUTPUT SAMPLE RATE to 32 44 1 ...

Страница 76: ...k limiting system thereby defining the maximum peak level that the 8600S will produce In the U S we recommend using 900 s peak weighting on the peak modulation indicator as permitted by F C C rules This will cause the monitor to ignore very low energy overshoots and will result in the highest peak modulation permitted by law In other countries use a peak indicating instrument as specified by the r...

Страница 77: ... BS 1770 Safety Limiter should be defeated in HD Radio installations Note that when the BS 1770 Safety Limiter is active and DIGITAL OUTPUT 1 is set as the BS 1770 reference output the DIGITAL OUTPUT 1 level con trol does not affect loudness but only sets the peak headroom For ex ample if the DIGITAL OUTPUT 1 control is set to 2 dBFS peaks will not exceed 2 dBFS but the BS 1770 loudness will remai...

Страница 78: ...ter Then save the result as a User Preset We recommend allowing the BS 1770 Safety Limiter to produce no more than 3 dB of gain reduction BS 1770 3 is an imperfect metric It has been established by listening tests that BS 1770 3 can over indicate loudness by 3 dB or more when the pro gram material has an unusually low peak to RMS ratio because of pro duction techniques dynamic compression etc When...

Страница 79: ...to use the 8600S in its stand alone stereo encoder mode make sure that the multiplex power controller is turned off until you have fin ished setting up the other stereo encoder parameters Otherwise it will interfere with setting output levels A Navigate to Setup STEREO ENCODER Next ITU412 B Set the multiplex power threshold by holding the ITU412 button down and turning the knob so that the display...

Страница 80: ... reduction produced by the MOD REDUCTION 1 and MOD REDUCTION 2 functions You can program these to be activated via any rear panel GPI input or by the 8600S s clock based automation See Remote Control Interface Pro gramming starting on page 2 45 and Automation starting on page 2 39 When both modulation reduction functions are active the modulation reduction is the sum of their settings To comply wi...

Страница 81: ... A Navigate to Setup SILENCE THR and set the Silence Threshold to the level be low which the 8600S will interpret the input as being silent This setting is with respect to the current analog reference level and digi tal reference level B Press Next as necessary to see the SILENCE DLY control Set it to the amount of time that the input must be below the Silence Threshold before the 8600S au tomatic...

Страница 82: ...he signal is unusable When pilot sync is specified SETUP I O CALIB DIG OUT CALIB DO SYNC and such an error is detected the 8600S automatically switches the sync source to the digital input If there is no valid digital input signal at the digital input the sync source de faults to the 8600S s internal clock No Function Tally output is disabled C Program tally output 2 if you wish following the proc...

Страница 83: ...evel to which your studio operators peak their program material on the studio meters This as sures that the 8600S s processing presets will operate in their preferred range You may adjust this level with a standard reference line up level tone from your studio or with program material Note that in this step you are calibrating to the normal indication of the studio meters this is quite different f...

Страница 84: ...mal level If the AGC gain reduction meter averages less than 10 dB gain reduction higher on the meter re adjust the AI REF VU or PPM to a lower level If the AGC gain reduction meter averages more gain reduction lower on the meter re adjust the AI REF VU or PPM to a higher level G When finished reset EXT AGC to YES if required e g if that was its setting prior to setting AI REF VU or PPM level Refe...

Страница 85: ...eating the final clipper and overshoot compensator will in crease peak output levels possibly to the point where the 8600S s output amplifier and or digital output clips It is wise to customize any presets you are using by reducing the FINAL CLIP DRIVE and OSHOOT COMP DRIVE controls to their minimum values This will greatly reduce the probability of inadvertently clipping the 8600S s output Unless...

Страница 86: ...utputs set DVRSTY DLY to IN Otherwise set it to OUT It is not possible to apply the delay to only one of the two composite outputs F If you are using the diversity delay set its value using the Setup DVRSTY DLY TRIM control The control sets the delay applied to the composite analog and digital outputs when these outputs have been configured to receive delay While it is possible to activate or defe...

Страница 87: ...uses lossy compression like MPEG APT X or Dolby set the output FLAT Lossy codecs cannot handle pre emphasized signals If you are going to use the analog output for headphone monitoring see step B below set the output FLAT B Set the AO SOURCE to FM FM DELAY or MONITOR FM This produces a fully peak controlled output suitable for driving a transmitter FM Delay This produces a fully peak controlled ou...

Страница 88: ...lled because no peak limiting has been applied to this signal This will also be true if you have defeated the final clipper step 6 on page 2 29 If you are using program material make sure that the program material is loud enough to produce peaks of frequent recurrence that hit the 8600S s peak limiting system thereby defining the maximum peak level that the 8600S will produce In the U S we recomme...

Страница 89: ...TERNAL the internal crystal controlled DSP clock oscillator If DIG IN is chosen and no valid signal is available at the unit s digital input the 8600S automatically switches the sync source to the REF IN BNC connector If there is no valid digital input signal at the reference input the sync source de faults to the 8600S s internal clock If REF IN is chosen and there is no valid input signal at the...

Страница 90: ...DIG OUT 2 CALIB If you will not be using the Ratings Encoder Loop through feature repeat steps B through I for DO2 If you are using the Ratings Encoder Loop through feature follow the proce dure in step K below K If you are using the Ratings Encoder Loop through feature perform the fol lowing steps see Connecting a Ratings Encoder on page 2 8 a Set the DO2 OUT SOURCE control to AGC RATINGS or LIMI...

Страница 91: ...he BS 1770 Safety Limiter is active the DO 100 control does not affect loudness only peak headroom Refer to the explanation in step 12 A on page 2 36 In a transmission system using a lossy codec it is usually wise to leave 1 to 2 dB of headroom to accommodate codec overshoots If the transmission system uses linear PCM we recommend setting the DO 100 control to 0 2 dBFS Because the peak limiter is ...

Страница 92: ...e the input of the peak limiter The gain set by the hid den control complements the setting of the Digital Output 1 100 PEAK LEVEL control For example when the Digital Output 1 100 PEAK LEVEL control is set to 3 dBFS the hidden control adds 3 dB of gain before the peak limiters to compensate for the 3 dB of loss that the 100 PEAK LEVEL control introduces after the peak limiters Unless the peak lim...

Страница 93: ...duction This ar rangement allows you to apply as much FM processor sound as you want to the audio Turn the MPX POWER OFFSET control up closer to 0 to drive the peak limiters harder While the MPX power controller only produces gain reduction after the clippers the action of the BS 1770 controller is split The first 3 dB of gain reduction oc curs before the clippers so that you can achieve full 75 k...

Страница 94: ...1770 LOUDNESS THRESH control is correct if the transmit ter s modulation level was calibrated using your Optimod s built in lineup tone step 11 D on page 2 19 If you turned down the drive level to the FM transmitter via the COMPOSITE OUT DO 100 or AO 100 controls depending on how you are driving your transmitter to compensate for overshoots in the signal path following the Optimod turn the 1770 LO...

Страница 95: ...entered time agrees with the correct time Then press the ENTER TIME button to set the clock B Press the SET DATE button a Set today s date using the days month and year buttons b Press the ENTER DATE button C Press the DAYLIGHT TIME button a Using the Daylight Saving DT MONTH and DT WEEK buttons set the month and week when Daylight Saving Time Summer Time begins or OFF b Using the Standard Time ST...

Страница 96: ...24 hour format when the automation event is to occur Set the desired values with the knob D For events that occur on a daily or weekly schedule a Use the Prev and Next buttons to move the cursor the each day of the week in turn and use the rotary encoder to turn the day on or off You can program the event to occur on as many days of the week as you wish b Use the Prev and Next buttons to move the ...

Страница 97: ...nt times or event tasks C Turn the knob until you see the event you wish to edit D Press the EDIT EVENT button E Edit the event as desired Use the same technique as adding an event See step 3 on page 2 40 F Press the SAVE EVENT button to store your edits 5 To delete an event A Press the DELETE EVENT button B Select Next Prev to sort by either the event times or event tasks C Choose the event to de...

Страница 98: ...Note that if you fail to create a custom passcode and merely delete the 1234 passcode the 1234 passcode will be regenerated automatically the next time your Optimod is turned off and back on The Optimod s front panel cannot be locked out unless the Optimod has been as signed at least one All Access passcode The Optimod secures User Presets by encrypting them using the Advanced Encryp tion Standard...

Страница 99: ...ady password protected you can only access this screen by entering a passcode with ALL ACCESS privileges B Turn the knob until you see the passcode you want to edit C Press the Next button The Permissions screen appears D Turn the knob to set the desired permission level for the passcode you are ed iting E Press the Next button to confirm your choice Your new permission level is stored and the Sec...

Страница 100: ...on to leave the Security menu To Unlock the Front Panel A On the 8600S front panel operate any button or the knob The PASSCODE screen will appear B Enter a passcode using the four soft buttons The 8600S functionality that you can access depends on the security level of the passcode that you entered After you have finished working the panel will automatically re lock af ter the time delay you set i...

Страница 101: ... Remote Control Interface Programming Skip this step if you do not wish to program the GPI contact closure remote con trol interface 1 Navigate to Setup Next NETWORK REMOTE REMOTE INTERFACE 2 Program one or more remote control interfaces A Navigate to the desired Remote Interface button 1 through 8 by repeatedly pressing the Next button B Hold down the button while turning the knob to select the d...

Страница 102: ...log output if it is configured to emit the output of the analog FM processing chain see page 3 74 Digital Out 1 Delay In Activates the diversity delay for Digital Output 1 Analog Digital 1 Digital 2 Composite if it is configured to emit the output of the analog FM processing chain see page 3 74 There is also a DIGITAL OUT 2 DELAY IN choice available It is not possible to choose different diversity...

Страница 103: ...emote software then you must first be able to connect to the 8600S Therefore you will usually per form this procedure from the 8600S s front panel to prepare it for connec tion A Navigate to Setup NETWORK REMOTE Next B Press the SET IP ADDRESS soft button The IP Address Screen appears a Use the Next and Prev keys to move the cursor in turn to each digit in the IP address Use the knob to set the di...

Страница 104: ...cable If you are connecting directly to the Ethernet jack on a computer use a cross over or reverse Ethernet cable G Press the Next button 2 Prepare the 8600S for modem connection through the serial port Skip this step if you will not be using a modem connection A Navigate to Setup NETWORK REMOTE B Hold down the PC CONNECT soft button and turn the knob until you see MODEM on the display C Press th...

Страница 105: ... down the PC CONNECT soft button and turn the knob until you see DIRECT on the display You are now ready to connect your computer to your 8600S through a null modem cable connected to your computer s serial port Refer to Installing 8600S PC Remote Control Software on page 2 60 Connecting to the 8600 s Ethernet Port or Serial Port via a Ter minal Program on a PC You can connect a terminal emulation...

Страница 106: ... uses a fixed IP ad dress 192 168 168 101 To control the 8600 directly through its serial port or Ethernet port you can use the freeware terminal emulation application PuTTY If you wish to automate control download Plink Both of these applications are available for free download Search PuTTY with Google to find a download site Note that Windows 7 does not install a Telnet Client by default so you ...

Страница 107: ... subsets of the standards based Telnet SSH protocols directly or for simplicity by using scripting or by calling batch files with a Telnet SSH client such as PuTTY along with its compan ion command line interpreter Plink Automating control changes is possible using the Windows Task Scheduler to launch batch files at the desired time CAUTION Because of the powerful features and potential security r...

Страница 108: ...nload Google netcat This method is scripted with a cmd file and calls a txt file The cmd file calls netcat exe to make the network connection between the computer executing netcat exe and 8600 and specifies the txt file to use The txt file contains the 8600 commands The following two examples recall the presets GREGG and GREGG OPEN respec tively The file 8600_P1_Gregg cmd contains nc exe v n w 1 1...

Страница 109: ...sscode is entered the 8600 will ignore the command If a non existent preset name is entered your Optimod will return an error message to indicate that the preset you entered does not ex ist You can apply this command anytime after the 8600 boots up The 30 minute timeout does not apply This command is useful in interfacing automation systems to the 8600 2 To turn the analog diversity delay on or of...

Страница 110: ...n and backup that require different diversity delay settings We recommend first using 8600 PC Remote to set the correct delays for the main and backup chains When you have found the correct delay for each transmission chain write down the delay times that PC Remote displays Then program these into main and standby batch files that when executed send the appropriate TR com mand to the 8600 when the...

Страница 111: ...LLBACK control will determine whether the Optimod automatically switches to its analog input See step 6 on page 2 29 Command Response IN X PASSCODE valid passcode and argument INPUT ANALOG DIGITAL for each output invalid passcode no error message is issued In the above table X A D where A analog input D digital input PASSCODE ANY VALID PASSCODE If a non existent control value and or an invalid pas...

Страница 112: ...rs Command Response ST PASSCODE 8600 Status Ver 1 0 x x Bootrom 4 mmm dd yyyy HH MM SS On Air LOUD HOT BASS User Presets 0 Memory Total 16318464 Init Available 13606912 Mem Available 10022480 Mem Contiguous 9420800 Heap Available 15952 Heap Contiguous 2048 Disk Size 23998 Free Disk Space 18978 9 To set the security timeout of the terminal connection Sets the delay minutes between when the last ter...

Страница 113: ...rver you selected The choices are OFF 8 HOURS and 24 HOURS If the connection to the timeserver fails due to network overload or other problems your Optimod will try once per hour to synchronize un til it is successful C Set the OFFSET to the difference in hours between your time zone and Uni versal Time UTC UTC is also known as GMT or Greenwich Mean Time The value can range between 12 and 12 hours...

Страница 114: ...e connection is not successful within five seconds the display will indi cate that the connection failed This means either that the timeserver is too busy or that your setup cannot connect to the timeserver Double check the IP address If you are behind a firewall make sure that port 123 is open If your connection failed the gateway address might not be set correctly on your Optimod The gateway add...

Страница 115: ... Remote to turn off your Optimod s automatic synchronization uncheck Automatically synchronize with an Internet time server on your PC Then click the Update Now button on PC Remote E Navigate to Optimod PC Remote s SETUP UTILITY tab and click the SET 8600S CLOCK button If you are running Windows XP PC Remote will download your computer s currently specified timeserver into your Optimod PC Remote w...

Страница 116: ...cate through a local PC you will need to establish a connec tion between a serial COM port of the PC and the COM port of your 8600S through a null modem cable supplied with your 8600S You will then use Win dows Direct Serial Connect to make the basic connection If you want to communicate through a pair of modems you will use the Windows Dial Up networking service to make the connection You must in...

Страница 117: ...ections provide steps for connecting to your 8600S OPTIMOD FM software using the Windows 2000 XP Direct Cable Connect or via modem connec tion Running the Orban Installer Program Insert the installer CD into your computer s CD drive The installer should start up and ask you if you wish to install the PC Remote appli cation on your computer If it fails to do so navigate to Start Run on your com put...

Страница 118: ...g Ethernet port you will need to add one and then following the instructions pro vided by Microsoft to set it up to enable TCP IP networking If you wish to connect to your 8600S through your LAN or VPN through a WAN or the Internet consult your network administrator Note that to cross subnets you must specify a gateway If the PC and 8600S are on the same subnet then it is un necessary to specify a...

Страница 119: ...a null modem cable A normal serial cable will not work B Connect the other end of the cable to your computer s COM port Connecting Using Windows 2000 Direct Serial Connection Ordinarily a direct serial connection through a null modem cable is used only when you are controlling one 8600S per available COM port on your computer If you wish to control multiple local 8600S it is better to use an Ether...

Страница 120: ...00S on page 5 9 1 Add and configure a Direct Connection for Windows 2000 A Create a New Windows 2000 Direct Connection a Launch 8600S PC Remote b Choose Connect New 8600S c Give your 8600S a name e g KABC by en tering this name in the 8600S Alias field d If you wish to have 8600S PC Remote remember the password for this Optimod enter the pass word in the Password field e Select Serial Connec tion ...

Страница 121: ...ion j Click Next k Select either For all users or Only for myself The correct setting depends on how your network and security are configured Your wizard may not display this field if your computer is set up for a single user only l Click Next m Enter a name for your Connection such as Connection to 8600S n Click Finish ...

Страница 122: ...ick Yes B Edit your new Direct Connection properties a Click Settings b Click the General tab c Select the device you set up in step i on page 2 65 This will usually be Com munications cable between two com puters COM1 d Click Configure ...

Страница 123: ...elect the Networking tab j Make sure that PPP Windows 95 98 NT 4 2000 Internet appears in the Type of dial up server I am calling field k Make sure that Internet Protocol TCP IP is checked You may leave File and Prin ter Sharing for Microsoft Net works and Client for Mi crosoft Networks checked if you like l Click OK When the Connection properties window appears click OK ...

Страница 124: ...oting Windows 2000 Direct Connect on page 5 10 If you have trouble the first time after creating a connection according to the instructions above try restarting your computer to clear its serial port 3 To change the properties of an existing connection Right click the connection in the connection List window and choose Proper ties The Connection properties window opens see page 2 64 Connecting Usi...

Страница 125: ...f you wish to have 8600S PC Remote remember the password for this Optimod enter the password in the Password field e Select Serial Connection f Click the Add button g Choose Connect directly to another computer h Click Next i In the drop down box select the serial port you will be using to make the connection j Click Next ...

Страница 126: ...2 70 INSTALLATION ORBAN MODEL k Type in a name for your Connection such as Connection to 8600S l Click Finish m n Click Yes B Edit your new Direct Connection properties a Click Settings ...

Страница 127: ...he device you set up in step i on page 2 69 This will usually be Communications cable between two computers COM1 d Click Configure e Set the Maximum Speed bps to 115200 f Check Enable hardware flow con trol g Make sure all other hardware features are unchecked h Click OK i ...

Страница 128: ...mote application see To set up a new connection on page 3 89 choosing this connection from 8600S PC Remote automatically opens a Windows Direct Con nection to your 8600S You can connect by selecting the desired connection from the drop down list in the CONNECT menu You can also connect by double clicking the connection in the Connection List window A dialog bubble will appear on the bottom right h...

Страница 129: ...ens see page 2 64 Connecting Using Windows 7 Direct Serial Connection You must install the Windows 7 direct serial connection as a modem device using the Modem setup procedures as shown in the steps below 1 Add and configure a Direct Connection for Windows 7 A Go to the Control Panel Find the Mo dem applet This is normally under the Phone and Modem section Click on it to start the Phone and Mo dem...

Страница 130: ...dems tab and click Add You need ad ministrator s rights to do this If UAC comes up provide the relevant creden tials and pro ceed C The Add Hardware Wizard will appear a Tick Don t detect my modem I will select it from a list b Proceed to next step by clicking on the NEXT button ...

Страница 131: ...New Modem window will appear a Select Communications cable between two computers b Proceed to next step by clicking on the NEXT button E Select the Serial com port to which the NULL cable is con nected Proceed to next step by clicking on the NEXT button ...

Страница 132: ...pletes the installation of the device driver for the device Communications cable between two computers This configuration is also commonly known as Di rect Cable Communications 2 Set up the Network for the Direct Cable Connection You must next bind the Direct Cable Connection driver to a particular Network This is where Microsoft will make this connection using the PPP protocol It will do this for...

Страница 133: ...IMOD FM DIGITAL INSTALLATION 2 77 A Go to the Network and Sharing Center and click on Set up a new connection or network link B In the Choose a connection op tion window select Set up a di al up connection ...

Страница 134: ...modem device D When prompted to Type the information from your Internet Service Provider enter a dummy number to the phone number field Windows will not use it E Choose a name for your connection and enter it into the Connection name box Choose a name that will re mind you that this is a PPP connection such as Direct Serial PPP F Proceed to next step by click ing on the CONNECT button G Click the ...

Страница 135: ... Optimod Although you did not specifically install any thing that states PPP the PPP protocol has nev ertheless been installed 3 Configure the Direct Cable Connection adapter In this step you will customize the PPP settings on Windows 7 so that it can talk to your Optimod A Go to the Windows 7 Network and Sharing Center and click the change adapter settings link This is on the left side of the win...

Страница 136: ...ials and con tinue C In the Direct Serial PPP Properties window select the General tab D Click the Configure but ton and select 115200 bps E Click OK to close the window F Make sure your bps set tings saves correctly a Dismiss the Direct Serial PPP Properties window by selecting OK b Reopen the Properties window and select the General tab again If your bps setting is correct the value has saved an...

Страница 137: ...k OK to close the window e Click OK to dismiss the Properties window f Restart your computer Restarting should ensure that the bps setting is saved G Select the Networking tab a Unselect the Internet Protocol Version 6 b Click on the Internet Protocol Version 4 c Click the Properties button ...

Страница 138: ... connection from 8600S PC Remote automatically opens a Windows Direct Con nection to your 8600S You can connect by selecting the desired con nection from the drop down list in the CONNECT menu You can also connect by double clicking the connection in the Connection List window A dialog bubble will appear on the bottom right hand corner of the screen verifying your con nection if the connection is ...

Страница 139: ...the telephone line from the wall phone jack to the wall connection icon on the back of the modem modem in B Connect the modem cable from the modem to the serial port of the 8600S C Set the modem to AUTO ANSWER and turn it on For 3Com U S Robotics 56kbps fax modem EXT set dipswitches 3 5 and 8 in the down position to activate the AUTO ANSWER setting All other dipswitches should be set to the up pos...

Страница 140: ...dems are installed and it is attached to the correct port then click Properties for that modem g Make sure the port speed is set at 115200 h Click OK B Create a New Windows 2000 Dial Up Connection a Click Start Settings Network and Dial up Connections Make New Connection b Once the New Connection Wizard has opened Click Next C Create a New Windows 2000 Direct Connection a Launch 8600S PC Remote b ...

Страница 141: ...er the phone number of the modem connected to the 8600S that you are setting up k Click the Next button l Select either For all users or Only for myself The correct setting depends on how your network and security are configured m This screen may not appear in computers set up for single users ...

Страница 142: ...ATION ORBAN MODEL n Click the Next but ton o Type in a name for your Connection such as Connection to 8600S Modem p Click the Finish but ton q Click Yes D Edit your new Direct Connection properties a Click Settings ...

Страница 143: ... select the modem you will be using to make the connection on the PC side d Click Configure e Set Maximum speed bps to 115200 f Check Enable hard ware flow control g Check Enable modem error control h Check Enable modem compression i Make sure that all other boxes are not checked j Click OK ...

Страница 144: ...on page 3 89 choosing this connection from 8600S PC Remote automatically opens a Windows modem connection to your 8600S You can connect by selecting the desired con nection from the drop down list in the CONNECT menu You can also connect by double clicking the connection in the Connection List window If the connection is successful a dialog bubble will appear on the bottom right hand corner of the...

Страница 145: ...T icon A list will branch off showing your available ports f Double click Communications Port COM1 or COM2 depending on how you set up your system The Communications Port Comx Properties dialog box opens Not all PCs have a COM2 IMPORTANT The COM port you choose at this point must match the COM port to which you connected your modem g From the tabs at the top choose Port Settings and configure the ...

Страница 146: ...ion f If your modem is available in the list available under The following Modems are installed and it is attached to the correct port then click Properties for that modem g Make sure the port speed is set at 115200 h Click OK C Create a new Windows XP modem connection a Launch 8600S PC Remote b Choose Connect New 8600S The Connection Proper ties window opens c Give your 8600S a name e g KABC by e...

Страница 147: ... f Select Serial Connection g Click the Add button h Select Dial up to private network i Click Next j k Enter the phone number of the modem connected to the 8600S you are setting up l Click Next m n Type in a name for your Connection such as Connection to 8600S Modem o Click the Finish button ...

Страница 148: ...LLATION ORBAN MODEL p Click Yes D Edit your new Direct Con nection properties a Click Settings b Click the General tab c Select the modem you will be using to make the connection on the PC side d Click Configure ...

Страница 149: ... Type of dial up server I am calling field m Make sure that Internet Protocol TCP IP is checked You may leave Client for Microsoft Networks checked if you like n Click OK o When the Connection properties window appears click OK 2 Launch an existing Windows XP modem connection Once you have set up a connection specifying a modem connection in the 8600S PC Remote application see To set up a new conn...

Страница 150: ...software version number of PC Remote must be the same as the version number of the software running within your 8600S If the software version of PC Remote is higher than the version running in your 8600S PC Remote will automatically detect this and will offer to update your 8600S software automatically 1 If you have not already done so prepare your computer and the 8600S for a direct serial modem ...

Страница 151: ... your 8600S s rebooting Your 8600S will continue to pass audio normally while the update is oc curring However the audio will be interrupted for approximately 3 sec onds when your 8600S reboots Do not interrupt power to your 8600S or your computer close PC Remote or the update application s command line window or reboot your com puter during this time While doing any of these things is unlikely to...

Страница 152: ...ure Select enable and disconnect from the PC remote to update the unit and allow SNMP access If you wish to disable SNMP access after it has been enabled select dis able and then reboot your Optimod Primary Manager Address 255 255 255 255 sets the address of the Primary SNMP Manager Primary Manager Port 162 sets the port of the Primary SNMP Manager Secondary Manger Address 255 255 255 255 sets the...

Страница 153: ... Port Analog Input Silent Analog Input Active The analog input is selected as the input source AES Input Silent AES Error Digital Input Active The digital input is selected as the input source Set Control Primary and Secondary Manager IP Primary and Secondary Manager Port Station Name Traps Alert Analog Input Silent Analog Input Active selected as input source AES Input Silent AES Error Digital In...

Страница 154: ...unity string along with all SNMP requests If the community string is correct the device responds with the requested information If the community string is incorrect the device simply discards the request and does not respond Read String allows users to set a password for SNMP to retrieve information from the Optimod Default is PUBLIC Write String allows users to set a password for SNMP to write se...

Страница 155: ...m I O the default to set up the RDS to generate static RDS Change the RDS data dynamically by using processing presets Change the RDS data dynamically by using terminal control You can use both User Presets and the RDS terminal control to change the RDS dy namically For example if you are running a mixed format where part of the broad cast day is devoted to news and part to jazz you may want the R...

Страница 156: ...m Name PTYN Default undefined Music Speech MS Default Music Decoder Info DI Default Stereo Traffic Program TP Default 0 TA Timeout TATIME Default 30 57kHz RDS Subcarrier RDS Default Off Subcarrier Level RDSLEVEL Default 6 Terminal Echo ECHO Default yes IP Address Default 0 0 0 0 RDS Terminal Port PORT1 Default 22201 Current Time TIME Default No Alternate Frequency 1 24 AF Default None Table 2 1 Sy...

Страница 157: ...e Optimod will update the RDS output when a control is changed or if you select the DONE button Using Processing Presets RDS adjustment via processing presets are available only from PC Remote To use processing presets edit your on air preset with the RDS checkbox USE SYSTEM RDS VALUES deselected Then set the RDS preset controls as required and save the result as a new user preset It is possible t...

Страница 158: ...you recall the processing preset again the RDS generator will revert to transmitting 1234 because the terminal settings are not saved The INIT command clears any values previously sent from the Terminal connection and causes the RDS to revert to the System values By using the SAVE command you can rewrite the SYSTEM RDS settings from the ter minal server For security this command requires you to in...

Страница 159: ...nd to the Telnet client which will write it to the screen The returned information will look similar to the following PS undefined DPS undefined DPSS 2 Seconds DPST Off RT KKDB MORE HIT MUSIC DRTS Off PI 3D44 PTY 9 PTYN ROCK MS Music DI Stereo TP No TA No TATIME 30 TIME No RDS Yes RDSLEVEL 6 0 AF 1 87 7 MHz AF 2 0 AF 3 0 AF 4 0 AF 5 0 AF 6 0 AF 7 0 AF 8 0 AF 9 0 AF 10 0 AF 11 0 AF 12 0 AF 13 0 AF ...

Страница 160: ...s Table 2 2 lists the terminal commands Note that you can fetch the status of the RDS generator as follows command returns current value ST returns current value of all controls HELP returns a list of the RDS terminal commands CR LF in Table 2 2 COMMAND PARAMETER INFORMATION EXAMPLE PS DPS Dynamic PS 256 max characters for scrolling messages in the PS field DPS Artist Goes Here Title Goes Here DPS...

Страница 161: ...witch 0 Music 1 Speech MS 0 Music DI Decoder Informa tion 0 Mono 1 Stereo DI 1 Stereo TP Traffic Program 0 Station does not carry traffic info 1 Station broadcasts routine traffic info TP 0 No Traffic TA Traffic Alert ON AIR NOW 0 Flag Off 1 Flag On Flag valid only when TP 1 TA 0 No Traffic Alert TATIME TA Timeout 0 Timer Off 1 255 seconds between start of TA flag and automatic reset to OFF 30 is ...

Страница 162: ...elcome Header 0 No 1 Yes Sets whether the RSD welcome header is sent to the Network client upon connec tion VER 0 INIT Use System RDS parameters Use RDS parameters from Sys tem INIT SAVE Save RDS pa rameters saves the current RDS parame ters to the currently active RDS control set either the System Set tings or the User Preset group NOTE Any changes will not ap pear in the PC application if it is ...

Страница 163: ...1 166 88 9 14 94 0 65 99 1 116 104 2 167 89 0 15 94 1 66 99 2 117 104 3 168 89 1 16 94 2 67 99 3 118 104 4 169 89 2 17 94 3 68 99 4 119 104 5 170 89 3 18 94 4 69 99 5 120 104 6 171 89 4 19 94 5 70 99 6 121 104 7 172 89 5 20 94 6 71 99 7 122 104 8 173 89 6 21 94 7 72 99 8 123 104 9 174 89 7 22 94 8 73 99 9 124 105 0 175 89 8 23 94 9 74 100 0 125 105 1 176 89 9 24 95 0 75 100 1 126 105 2 177 90 0 25...

Страница 164: ...rmation Current Affairs 3 Sports Information 4 Talk Sports 5 Rock Education 6 Classic Rock Drama 7 Adult Hit Music Culture 8 Soft Rock Music Science 9 Top 40 Music Varied 10 Country Music Pop Music 11 Oldies Music Rock Music 12 Soft Music Easy Listening Music 13 Nostalgia Music Light Classics Music 14 Jazz Serious Classics Music 15 Classical Music Other Music 16 Rhythm and Blues Music Weather 17 S...

Страница 165: ...isplay the following Figure 2 5 Pilot SCA Phasing Scope Trace To minimize the amount of peak level that the RDS subcarrier adds to the composite baseband your Optimod s RDS generator is locked in quadrature with respect to the pilot tone so Figure 2 5 is for reference only If your transmission system is broad casting stereo correctly it will also correctly pass the phasing built into your Opti mod...

Страница 166: ......

Страница 167: ...re inactive Control Knob is used to change the setting that is selected by the soft buttons To change a value you ordinarily have to hold down a soft button while you are turning the control knob Recall button allows you recall a Factory or User Preset Selecting the Recall button does not immediately recall a preset See step 13 on page 3 22 for instructions on recalling a preset Modify button brin...

Страница 168: ...ight HF Limiter gain reductions Composite meter shows the output level of the stereo encoder before the composite output attenuators The meter s reading is calibrated in percent modulation Multiplex Power Gain Reduction meter indicates the action of the ITU412 Multiplex Power controller It shows how much the MPX Power Controller has reduced the clipper drive thereby reducing the average power in t...

Страница 169: ... cause the left and right HF enhancers are independent we have programmed this meter so that it reads the larger of the left and right HF enhancement The 8600S s HF enhancer operates in both Two Band and Five Band modes and in the 8600S PC Remote software is metered in both modes On the unit s front panel there are not enough arrays to meter the HF enhancer and Five Band gain reduction simultaneou...

Страница 170: ...ne moder ately Excessive clipping will be perceived as audible distortion Look ahead limiting is limiting that prevents overshoots by examining a few milli seconds of the unprocessed sound before it is limited This way the limiter can an ticipate peaks that are coming up The 8600S uses look ahead techniques in several parts of the processing to minimize overshoot for a given level of processing ar...

Страница 171: ...kHz when an MX preset is ac tive compared to when an 8500 style preset is active Nevertheless all intelligent processor designers must acknowledge and work within the laws of physics as they apply to this trade off Perhaps the most difficult part of adjusting a processor is determining the best trade off for a given situation We feel that it is usually wiser to give up ultimate loudness to achieve...

Страница 172: ...ck machines electronics and studio to transmitter link If the source material is even slightly dis torted that distortion can be greatly exaggerated by OPTIMOD FM particularly if a large amount of gain reduction is used Very clean audio can be processed harder without producing objectionable distortion A high quality monitor system is essen tial To modify your air sound effectively you must be abl...

Страница 173: ...rmance will be more predictable because the 8600S will detect speech with substantial background music or effects as music and will not apply speech mode processing to this material About the 8600S s Signal Processing Features Dual Mono Architecture The 8600S implements full dual mono architecture in both the AGC and the multi band compressor sections You can couple each band in both the AGC and m...

Страница 174: ... 18 dB octave highpass filter and a defeatable phase rotator complete the input conditioning block These have both been features in Orban FM processors for many years Most users will defeat the 30 Hz filter and leave the phase rotator in circuit although the choice is always yours Stereo Enhancement The 8600S provides two different stereo enhancement algo rithms The first is based on Orban s paten...

Страница 175: ...er than 0 15 dB This means that their sound is very close to the sound of an Orban analog parametric They also use very high quality filter algo rithms to ensure low noise and distortion The 8600S HF Enhancer is a program controlled HF shelving equalizer It intelligently and continuously analyzes the ratio between broadband and HF energy in the input program material and can equalize excessively d...

Страница 176: ...m pared to the intelligent clipping in the non MX presets See Measuring the Im provements in Optimod FM 8600 and 8600S MX FM Peak Limiting Technology starting on page 3 98 Speech Mode You can set many of the processing parameters separately for speech signals as detected by the 8600S s speech music detector This allows you to tune the processing separately for speech and music A SPEECH DETECT cont...

Страница 177: ... that use synchronous demodulation of the stereo subchannel Almost every radio manufactured since 1973 works like this We have verified that the 8600S s SSB gen erator produces more than 60 dB of separation from 50 to 15 000 Hz when meas ured on a Belar FMSA 1 Wizard modulation monitor which was originally de signed for convention double sideband operation In SSB VSB mode the bandwidth of the 8600...

Страница 178: ...ontrol the composite waveform without significantly compromising separation pilot protection or sub carrier protection and without adding the pumping typical of simple gain control look ahead solutions We succeeded in our effort The 8600S offers a patented Half Cosine Interpolation composite limiter that provides excellent spectral protection of the pilot tone and SCAs including RDS while still pr...

Страница 179: ... than using the left right domain overshoot compensators the sound is brighter but has more aliasing distortion as discussed above If the com posite clipper is active stereo separation will decrease ITU R 412 Compliance for Analog FM Broadcasts ITU R 412 requires the average multiplex power to be limited to a standard value The 8600S contains a defeatable feedback multiplex power limiter that cons...

Страница 180: ...qualizer and HD multi band compressor limiter will follow their counterparts in the FM analog processing chain or if the HD and FM controls can be adjusted independently See FM HD Control Coupling on page 3 77 The peak limiter in the digital radio processing chain is a mastering quality look ahead limiter This limiter minimizes IM distortion in addition to minimizing har monic distortion The resul...

Страница 181: ...shold See step 12 on page 2 35 Because it only offers processing for analog radio model 8600SFM does not include a BS 1770 Safety Limiter Input Output Delay The sophisticated look ahead algorithms in the 8600S have one significant cost the input output time delay is longer than that of an analog processor and can cause problems if the if an off air pickup is used to feed talent headphones To make ...

Страница 182: ... a table that we have created in the 8600S s permanent ROM Read Only Memory In this table are sets of subjective setup control settings that provide in our opinion the most favorable trade off between loudness den sity and audible distortion for a given amount of dynamics processing We believe that most 8600S users will never need to go beyond the Basic level of control The combinations of subject...

Страница 183: ...inexperienced hands leading you to create presets that sound great on some program material and fall apart embarrassingly on other material We therefore recommend that you create custom presets at the Advanced Modify level only if you are experienced with on air sound design and if you are willing to take the time to double check your work on many different types of program material The PC Remote ...

Страница 184: ...e ESC button repeatedly until you see the main screen which shows the current time and the preset presently on air If there is an unsaved preset on air the rightmost button will be labeled SAVE PRESET B Press the SAVE PRESET button The Save Preset screen appears C Choose a name for your preset Some non alphanumeric characters such as and are reserved and cannot be used in preset names D Use the kn...

Страница 185: ...re are many possible ways of configuring a processing system using analog com ponents like equalizers compressors limiters and clippers 8600S s DSP hardware can realize several possible processing structures Unlike an analog system where creating a complete processing system involves physically wiring its various compo nents together the 8600S realizes its processing structures as a series of high...

Страница 186: ...s because the preset customization controls are different UL presets have fewer available controls because of the difference in processing structure Unused structures operate constantly in the background so switching between structures occurs with a seamless cross fade Unlike older Orban processors like the 8200 no DSP code is reloaded and no audio mute is necessary Factory Programming Presets FAC...

Страница 187: ...PRESSED LOUD COMPRESSED 9 5 LOUD HOT LOUD HOT 8 5 LOUD HOT LL LOUD HOT LL 9 5 LOUD HOT BASS LOUD HOT BASS 9 5 LOUD HOT BASS LL LOUD HOT BASS LL 9 5 LOUD PUNCHY LOUD PUNCHY 9 0 LOUD SLAM LOUD SLAM 9 0 LOUD WIDE LOUD WIDE 9 5 NEWS TALK NEWS TALK 7 0 ROCK DENSE ROCK DENSE 7 0 ROCK GEN UL ROCK GENERAL UL 7 0 ROCK LIGHT ROCK LIGHT 7 0 ROCK MEDIUM ROCK MEDIUM 7 0 ROCK MEDIUM MX ROCK MEDIUM MX 7 0 ROCK M...

Страница 188: ...l appear several times under different names because we felt that these presets were appropriate for more than one format these can be identified by the shared source preset name Many of the presets come in several flavors like dense medium and open These refer to the density produced by the processing Open uses a slow multi band release time Medium uses a medium slow release and Dense uses me diu...

Страница 189: ...is intended for use below threshold most of the time i e with 0 dB gain reduction to provide protection limiting in the highest quality applications such as serious classical music intended for an attentive audience Its LESS MORE con trol determines the normal amount of gain reduction but does not increase distor tion or other processing artifacts when turned up CLASSICAL CLASSICAL MX The 8600S of...

Страница 190: ...stations should try the GOLD OPEN MX preset CRISP CRISP MX CRISP is an 8500 style preset that provides a bright upper mid range sound by emphasizing frequencies around 6 kHz It is a loud preset that is ap propriate for mass appeal music formats There are two MX CRISP presets CRISP MIDBASS MX has the same basic bass texture as the IMPACT MX preset and is targeted more toward smaller table radios wi...

Страница 191: ...ted or have other technical problems that make them unpleasant sounding when the processor over equalizes them in an attempt to emu late the high frequency balance of recently recorded material GOLD MX There are three GOLD presets using MX technology GOLD HEAVY GOLD HEAVY BASS and GOLD OPEN GOLD OPEN is least sensitive to source material and is appropriate for old ies from the earliest rock and ro...

Страница 192: ...ing long time spent listening This very loud bright major market preset has a great deal of presence energy that cuts through on lower quality radios Its sound changes substantially as the LESS MORE control is turned down distortion decreases while bass punch and transparency improve Therefore exploring various LESS MORE settings is very worthwhile with IMPACT because for many markets this preset ...

Страница 193: ...HOT LOUD HOT BASS is based on LOUD HOT It is tuned for the maximum amount of bass we could add without creating obvious distortion on some program material For maximum punch it uses the HARD bass clipper at higher LESS MORE settings This amount of bass may be excessive with certain consumer radios particularly boom boxes that already have substantial bass boost Use it with care LOUD HOT BASS LL is...

Страница 194: ...s recognizes that most sports programming has very low signal to noise ratio due to crowd noise and other on field sounds so the preset does not pump this up as the NEWS TALK preset would tend to do ROCK ROCK MX We have included all of the 8500 style ROCK presets and have made MX versions of ROCK MEDIUM ROCK SOFT and ROCK SMOOTH which are cleaner and punchier than their 8500 style counterparts ROC...

Страница 195: ...for adult contemporary and soft rock formats where long time spent listening is desired SMOOTH JAZZ SMOOTH JAZZ MX These presets are designed for commercial sta tions playing smooth jazz They are loud presets designed to prevent stridency with saxes and other horns SMOOTH JAZZ is based on a custom 8500 preset that has been used successfully by a major market smooth jazz station with very good rat ...

Страница 196: ...ess of program material some bass boost is usually desirable to keep the sound spectrally well balanced Adjustment of bass equalization must be determined by individual taste and by the requirements of your format Be sure to listen on a wide variety of radios it is possible to create severe distortion on poor quality speakers by over equalizing the bass Be careful The moderate slope 12 dB octave s...

Страница 197: ...int These curves are relatively broad because they are designed to provide overall tonal coloration ra ther than to notch out small areas of the spectrum Equalizer Controls Group Basic Mod ify Name PC Remote Name Range BASS FREQ Bass Frequency 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 160 170 180 190 200 210 220 230 240 250 270 290 310 330 350 380 410 440 470 500Hz BASS GAIN Bass Gai...

Страница 198: ...t high frequencies Midrange Parametric Equalizer is a parametric equalizer whose boost and cut curves closely emulate those of an analog parametric equalizer with conventional bell shaped curves MID FREQ determines the center frequency of the equalization in Hertz Range is 250 6000Hz MID GAIN determines the amount of peak boost or cut in dB over a 10 dB range MID WIDTH determines the bandwidth of ...

Страница 199: ... our presets we use this equalizer to boost the upper presence band 4 4 kHz slightly leaving broadband HF boost to the BRILLIANCE and or HF ENHANCE controls BRILLNCE Brilliance controls the drive to Band 5 The high frequency limiter and Band 5 clipper dynamically control these boosts protecting the final clipper from ex cessive HF drive We recommend a maximum of 4 dB of BRILLNCE boost and most peo...

Страница 200: ... this ratio constant as the program material changes It can there fore create a bright present sound without over equalizing material that is already bright 30HZ HPF 30 Hz High Pass Filter determines if a 30Hz 18 dB octave highpass fil ter is placed in circuit before other processing Although not a stereo enhancer con trol it is found on the stereo enhancer page for convenience because like the st...

Страница 201: ...th distortion The stereo enhancer has the following controls Amount sets the maximum spatial enhancement Enhancer In Out bypasses the stereo enhancer OUT is equivalent to setting the AMOUNT to 0 L R L R Ratio Limit sets the maximum amount of enhancement to limit the amount of multipath distortion that the stereo enhancement can add However if the original program material exceeds this limit with n...

Страница 202: ...red sound as possible Then edit the Advanced Modify parameters using the Advanced Modify screen and save those edits to a User Preset AGC On Off control activates or defeats the AGC This control is usually used to defeat the AGC when you want to create a preset with minimal processing such as a CLASSICAL preset The AGC is also ordinarily de feated if you are using an external AGC like Orban s 6300...

Страница 203: ...h the MB RELEASE control the automatic gain control AGC that occurs in the AGC prior to the multiband compressor makes audio levels more consistent without significantly altering texture Then the multiband compression and associated multiband clipper audibly change the density of the sound and dynamically re equalize it as necessary booming bass is tightened weak thin bass is brought up highs are ...

Страница 204: ... bass band for audio below approximately 200 Hz Starting with V2 0 software the AGC Master and Bass compressor sidechains operate without internal coupling The gain reduction in the BASS audio path is either the output of the Bass compres sor sidechain or the output of the Master band sidechain The AGC BASS COUPLING control sets the switching threshold For example if the AGC BASS COUPLING control ...

Страница 205: ... the WINDOW RELEASE control and the setting of the AGC master release and attack controls The normal setting for the WINDOW SIZE is 3 dB Window Release see WINDOW SIZE above AGC Matrix allows you to operate the AGC in left right mode or in sum difference mode Usually you will operate in left right mode However sum difference mode can give a type of stereo enhancement that is different from the enh...

Страница 206: ...ack time of the AGC bass compressor below 200 Hz AGC Master Attack sets the attack time of the AGC master compressor above 200 Hz AGC Bass Release sets the release time of the AGC bass compressor Master Delta Threshold allows you to set the difference between the compression thresholds of the sum and difference channels This control is only useful when you set the AGC MATRIX to SUM DIF By setting ...

Страница 207: ...remains smooth as the two bands take different degrees of gain reduction the response is a smooth shelf without extra peaks or dips around the crossover frequency The two bands are each down 6 dB at the crossover frequency This crossover has constant delay even when the two bands have unequal gains While LINEAR has the ideal combination of no phase distortion even when non flat and smooth shelving...

Страница 208: ...tion in the receiver This is because it introduces spectrum in the stereo subchannel area when it clips material in the 0 to 15 kHz area The receiver will see this as stereo material and will de modulate it as if it were part of the stereo subchannel Accordingly har monics of L R material will be frequency shifted upon demodulation and will no longer bear a harmonic relationship to the material th...

Страница 209: ...e looking at the entire baseband on a spectrum analyzer with a 0 100 kHz sweep you may be unable to see the effect of the pilot filter This is because the filter protects the pilot 250 Hz from 19 kHz and the spectrum analyzer will not resolve this when looking at the entire stereo baseband To see the filter s effect zoom the spectrum analyzer in to ex amine only the area immediately around 19 kHz ...

Страница 210: ... of the gain reduction The gain reduction produced by the control is of course unchanging and cannot intro duce audible artifacts The ideal dynamic gain reduction for the multiplex power controller is 2 to 3 dB with typical program material However the actual gain reduction will vary widely depending on whether the underlying processing preset is loud or quiet There fore the appropriate setting of...

Страница 211: ...prevents the bass clipper from switching to MEDIUM mode whenever speech is detected By constraining the system in these ways it ensures that the delay is always 13 ms To minimize speech distortion the speech music detector automatically switches the bass clipper to MEDIUM when speech is detected provided that the Five Band structure is active LATENCY is HIGH and the BASS CLIP MODE is set to HARD S...

Страница 212: ...t between 2 dB and 5 dB below the threshold of the final limiter in the processing chain depending on the setting of the LESS MORE control in the parent preset on which you are basing your Modify adjustments This provides headroom for contributions from the other three bands so that bass transients do not smash against the back end clipping system causing overt intermodulation distortion be tween ...

Страница 213: ... DRIVE and or the MB LIMIT THR Multiband Limit Threshold controls may have to be turned down to compensate To best understand how to make loudness distortion trade offs perhaps the wisest thing to do is to recall a fac tory multiband preset and then to adjust the LESS MORE control to several settings throughout its range At each setting of the LESS MORE control examine the set tings of the MULTIBA...

Страница 214: ...d occurs gradually The factory default setting is 7 6 The MED and SOFT bass clipper characteristics use sophisticated look ahead algorithms that produce lower distortion than HARD mode regard less of where the HARDCLIPSHAPE control is set However operating in HARD mode with the HARDCLIPSHAPE control set beyond 0 may produce a tradeoff between punch and bass distortion that is more appropriate for ...

Страница 215: ...n trols these artifacts may include loss of bass punch harsh clipping distortion soft IM distortion and or excessive density that can cause fatigue If you intend to make adjustments at the intermediate or advanced levels it is wise to familiarize yourself with these artifacts by purposely overdriving the peak limiter via the PEAK LIMITER DRIVE CONTROL and listening to what happens with different t...

Страница 216: ...The BASS LIMITING control allows you to limit the amount of potential bass reduction at the expense of a pos sible increase in IM distortion Distortion Control This control determines the amount of audible distortion that the main peak limiter is permitted to create Higher settings can increase loudness and punch at the expense of audible clipping distortion Lower settings are cleaner but may redu...

Страница 217: ...qualization section a gated two band compressor a high frequency limiter and a complex peak limiting system similar to the one used in the Five Band structure Like the Two Band Purist structure in Orban s OPTIMOD FM 8200 the 8600S s Two Band Structure is phase linear throughout to maximize sonic transparency The Two Band structure has an open easy to listen to sound that is similar to the source m...

Страница 218: ...program material is reduced by 10 15 dB so that quiet passages in the music never fade into inaudibility under these less favorable listening conditions OPTIMOD FM controls the level of the music in ways that are for all practical pur poses inaudible to the listener Low level passages are increased in level by up to 10 dB while the dynamics of crescendos are maintained The CLASSICAL 2 BAND preset ...

Страница 219: ...ible Then edit the Mod ify parameters using the Basic Intermediate or Advanced Modify screen and save those edits to a User Preset The Two Band Structure s Setup Controls The tables below show a summary of the Two Band controls in the dynamics section These controls are available only from PC Remote AGC Equalizer Stereo Enhancer and Clipper controls are common to both Two Band and Five Band struct...

Страница 220: ...SE control is set between 8 and 1 dB second the slowest set tings the amount of gain reduction is surprisingly non critical Gating prevents noise from being brought up during short pauses and pumping does not occur at high levels of gain reduction Therefore the primary danger of using large amounts of gain reduction is that the level of quiet passages in input material with wide dy namic range may...

Страница 221: ...tively freezing gain to prevent noise breathing There are two independent gating circuits in the 8600S The first affects the AGC and the second affects the two band compressor Each has its own threshold control The two band gain reduction will eventually recover to 0 dB and the AGC gain re duction will eventually recover to 10 dB even when their compressor gates are gat ed However recovery is slow...

Страница 222: ...and compressor preventing uncontrolled build up of program density Instead of operating the Two Band structure like this you should usually choose a Five Band preset instead 2B Master Comp Threshold sets the level where gain reduction starts to occur in the Master above 200 Hz band of the Two Band Compressor 2B Bass Comp Threshold determines the compression threshold of the bass band in the Two Ba...

Страница 223: ...he high frequency limiter in the Two Band structure When this control is set lower gain reduction does more high frequency limiting When this control is set higher distortion cancelled clipping does more high frequency limiting It controls the tradeoff between loss of high fre quencies due to high frequency limiting and excessive distortion due to clipping This control only affects the analog proc...

Страница 224: ...oupling Start with one of these presets Spend some time listening critically to your on air sound Listen to a wide range of program material typical of your format and listen on several types of radios not just on your studio monitors Then if you wish cus tomize your sound using the information in Customizing the Settings which fol lows Customizing the Settings The LESS MORE control can edit each ...

Страница 225: ...ity also increases when you increase the drive level into the multiband compressor because these faster release times produce more limiting action Increasing density can make sounds seem louder but can also result in an unattractive busier flatter or denser sound It is very important to be aware of the many negative subjective side effects of excessive density when setting controls that affect the...

Страница 226: ...CK REL screen Slow Slow2 Med Med2 MFast MFast2 Fast Speech MB Release See above Gate Thresh Off 44 15 dB MB Clipping 4 0 5 0 dB Speech Thr 4 0 5 0 dB Down Expand Off 18 0 12 0 dB B5 Down Expand Off 18 0 12 0 dB see Band Mix screen 0 100 see Band Mix screen 0 100 see Band Mix screen 0 100 see Band Mix screen 0 100 Band 4 5 Coupling see Band Mix screen 0 100 B1 Compression Threshold 16 00 0 00 Off B...

Страница 227: ...d from cut to cut and announcer to announcer is remarkably consistent as the texture of music is noticeably altered to a standard Bass has an ever present punch there is always a sense of presence and highs are in perfect balance to the mids no mat ter what was on the original recording The Fast setting is used only for the TALK and SPORTS factory programming formats Processing for this sound keep...

Страница 228: ...ain to prevent noise breathing There are two independent gating circuits in the 8600S The first affects the AGC and the second affects the multiband compressor Each has its own threshold con trol V2 0 software sets the multiband compressor s gating threshold with respect to the signal driving the multiband compressor limiter which follows the AGC Meanwhile the AGC gating threshold remains set with...

Страница 229: ...e DJ BASS control in the Equalization screen is disabled MB Clipping sets the drive level to the multiband distortion controlling processing that precedes the final clipping section The distortion controlling section uses a combination of distortion cancelled clipping and look ahead processing to antici pate and prevent excessive clipping distortion in the final clipper Like any other dynamics pro...

Страница 230: ... sporting event than for classical music It may be wise to define several presets with different settings of the MB DOWN EXPANDER control and to recall the preset that complements the program ma terial of the moment Note also that it is virtually impossible to achieve undetectable dynamic noise reduc tion of program material that is extremely noisy to begin with because the program never masks the...

Страница 231: ...pressors they do not affect the compressors gain reductions and can be used as a graphic equalizer to fine tune the spectral balance of the program material over a 6 dB range There are two sets of mixer controls one for the analog processing chain and one for the HD processing chain The mixer controls for the HD processing chain also de termine the spectral balance of the low delay monitor output ...

Страница 232: ... Compression Threshold Speech Compression Threshold controls set the com pression threshold for music and speech in each band following the 8600S s auto matic speech music discriminator in units of dB below the final clipper threshold We recommend making small changes around the factory settings to avoid changing the range over which the MB CLIPPING control operates These controls will affect the ...

Страница 233: ... In the 8500 style presets the band 4 and band 5 com pressors share one compression sidechain although their associated clip pers and downward expanders operate independently MB Limit Thr available in 8500 style presets only sets the threshold of the clipping distortion controller with reference to the threshold of the final clipper in dB For best clipping distortion control most effective setting...

Страница 234: ... occurring in band 5 when high frequency energy would otherwise cause excessive distortion in the final clipper It uses an analysis of the activity in the final clipper to make this de termination and works in close cooperation with the band 5 multiband clipper Functionally this control is a mix control that adds a HF limiter gain reduction signal to the band 4 gain reduction signal to determine t...

Страница 235: ...r than slow or faster than fast the two end stops of the MB RELEASE control the band in question will instead set its release time at the appropriate end stop Lookahead activates or defeats the look ahead functionality in the multiband compressor limiter Defeating look ahead improves transient impact at the expense of distortion particularly on speech To mitigate this tradeoff a selectable auto mo...

Страница 236: ...ng the GPI to recall these presets as desired To do so A Create a preset with the desired settings for the music mode and speech mode controls Set its SPEECH DETECT control to MUSIC B Save this preset as a User Preset C Set the SPEECH DETECT control to SPEECH D Save the resulting preset as a second User Preset You may now program two GPI inputs to recall these two presets as desired Recall the fir...

Страница 237: ... your FM and HD settings easily Setting the FM HD CONTROL COUPLING control to INDEPENDENT defeats the LESS MORE control so if you want to use LESS MORE adjust it before you start to make independent adjustments to the FM and HD chains If a given preset has certain HD and FM controls set differently setting the FM HD CONTROL COUPLING to COUPLED will immediately cause the HD controls to take the sam...

Страница 238: ...ly high quality digital channels using pre emphasis of which we are aware are NICAM channels which use J 17 pre emphasis and some older CDs which use EIAJ 50µs 15µs shelving pre emphasis If you use the HD output to feed a digital channel with pre emphasis you must allow extra headroom to compensate for the unpredictable peak level changes that the pre emphasis induces If the HD output is driving a...

Страница 239: ...drive the FM analog side of your transmis sion plant set the stereo encoder s DIVERSITY DELAY control to IN If you need the shortest possible input to output time delay for example if you are driving talent headphones from the off air feed defeat the diversity delay on the output driving the FM analog transmitter by setting the OUT SOURCE to FM or DIVERSITY DELAY to OUT as appropriate for the outp...

Страница 240: ...alog FM delay in intervals of one sample of 64 kHz 15 6 µs so that the delays of the analog FM and digital radio channels are matched at the receiver s crossfade point This prevents audible comb filtering during crossfades The setting of this control is critical to get best results and you should adjust it to one sample accuracy In PC Remote drag the slider of the control with the mouse to set the...

Страница 241: ...e bandwidth at 20 kHz without quality penalty al though the difference between 15 and 20 kHz is unlikely to be audible following the encode decode cycle HD Polarity sets the polarity of the output of the HD processing to POSITIVE or NEGATIVE The switch allows you to match the polarity sometimes informally called phase of the audio through the analog FM and HD transmission channels re gardless of h...

Страница 242: ...etting the sample rate to 32 kHz automati cally forces the bandwidth to 15 kHz regardless of the setting of the HD BANDWIDTH control Word Leng Word Length sets the word length in bits emitted from the digi tal channel output The largest valid word length in the 8600S is 24 bits The 8600S can also truncate its output word length to 20 18 16 or 14 bits The 8600S can also add dither which we recommen...

Страница 243: ...ers but some consumer sound cards may require SPDIF BS 1770 Safety Limiter ON OFF activates or defeats the BS 1770 Safety Limiter which is applied only to the digital radio processing This control affects the behav ior of the digital output receiving the HD feed see step 12 on page 2 35 BS 1770 Loudness Control Threshold sets the threshold of the BS 1770 Safety Limiter and the calibration of the B...

Страница 244: ...ul for reducing the audible disparity between the FM and digital channel outputs although the HD BAND MIX controls are probably more appropriate for this task The digital channel output receives no high frequency limiting or clipping and may therefore be as much as 6 dB brighter than the FM output If you wish to reduce this difference to smooth out the audible difference between the two channels d...

Страница 245: ...ch will waste the bonus loudness HD loudness wars will not only reduce quality but will also cause unbal anced obtrusive crossfades between the analog and digital channels in the radio To brand your station s sound you can choose the precise coloration you want on the digital channel You can still take advantage of all of the ar tistic choices implicit in stereo enhancer equalization and multiband...

Страница 246: ... 75 kHz deviation The 8600S s MPX POWER meter is therefore calibrated so that it indicates 0 dB when the composite output of the 8600S is a sinewave at 25 333 modulation which is 11 92615 dB with reference to a sinewave at 100 modulation The meter is calibrated with reference to the 8600S s 100 peak modulation level This calibration is only correct if the transmitter and or studio transmitter link...

Страница 247: ...m following your Optimod Set ting the control at 0 will correctly control the multiplex power when there is no overshoot after the 8600S This will typically be true when you are using your Opti mod s built in stereo encoder to drive the transmitter directly Section 1 of this manual has an extensive discussion of overshoot in transmission paths See page 1 Error Bookmark not defined and following pa...

Страница 248: ...nd the amount of wideband gain reduction performed by the MPX Power Controller The multiplex power controller does not use the output of the 8600S s stereo en coder as its reference Instead it computes the multiplex power directly from the left and right audio signals the setting of the PILOT LEVEL control and the setting of the COMPOSITE LIMIT DRIVE control Hence the multiplex power controller do...

Страница 249: ...atively fast integration time However what happens if someone starts an arbitrary 60 second measurement period not at the beginning of the quiet passage but at the beginning of the crescendo Because an automatic MPX power controller does not know what is coming after the crescendo it must reduce the level of the crescendo so that it complies with the MPX requirement over with an integration time t...

Страница 250: ...s 9 to the total modulation Hence a TONE LVL setting of 91 produces 100 modulation 91 9 Note that when the Optimod is in TONE mode and its analog or digital L R out puts are set to FLAT instead of PRE EMPH these outputs apply 50μs or 75μs deemphasis to the output of the tone oscillator Applying deemphasis this way is only correct if equipment downstream from the Optimod like a transmitter s stereo...

Страница 251: ... bass while us ing modulation headroom efficiently For hundreds of years pipe organ makers have tricked the ear into hearing non existent fundamental tones which would re quire huge expensive pipes by replacing them with several smaller pipes tuned to the lower harmonics of the missing fundamental In the 8600S you can use the bass clipper to make harmonic distortion for this purpose As explained a...

Страница 252: ...tantial bass boost to the input by using the equalizer con trols A small amount of boost will just be automatically re equalized away check the factory presets to see what we mean by substantial Bear in mind that using large amounts of shelving bass boost particularly with 12 or 18 dB octave slopes can cause an effective loss of mid bass because the band 2 compressor will be forced to produce addi...

Страница 253: ...eate the impression of more bass on smaller ra dios See the discussion of these controls on page 3 50 Summary Bass is a matter of preference but the canny broadcast engineer will be aware of the variability of radios out there and will not apply excessive bass boost that can sound awful on boom boxes and other consumer radios with bass boost already built in It is usually wise to emulate the bass ...

Страница 254: ...3 88 OPERATION ORBAN MODEL 8600S ...

Страница 255: ...lled the appropriate Windows communications services on your computer By default the installer installs a short cut to 8600SPC exe on your desktop and in your Start Menu under Orban Optimod 8600S 8600S PC Remote can control only one 8600S at a time but it can readily switch be tween several 8600S 8600S PC Remote has a built in address book that allows it to select and connect to any 8600S on the s...

Страница 256: ...T drop down menu If the connection is successful a dialog bubble will appear on the bottom right hand corner of the screen verifying your connection If a warning message appears stating No password is set at the 8600S go to your 8600S unit and enter a passcode If an Enter Passcode dialog box appears enter a valid passcode and the 8600S PC Remote software will initiate a connection to the 8600S uni...

Страница 257: ...n air Continually clicking the RECALL PRESET button will toggle between the current and previous on air presets D Click DONE to dismiss the OPEN PRESET FILE dialog box The folder on your hard drive containing the preset files both Factory and User is automatically synchronized to the contents of its associated 8600S s memory each time 8600S PC Remote connects to that 8600S The 8600S s memory is th...

Страница 258: ...i mod that you are backing up This folder name backup and location are hard coded into the soft ware If you wish to move the backup files somewhere else later use a file manager like Explorer on your computer To make more than one backup archive rename the current backup folder for example to Backup1 8600S PC Remote will create a new backup folder the next time you do a backup leaving your renamed...

Страница 259: ... retained In addition you can load archived preset files from OPTIMOD FM 5500 5700 8400 8500 and 8600 The 8600S supports all features on these processors except for stand alone stereo encoder mode in the 5500 5500 and 8400 presets will sound very similar on the 8600S They will not sound 100 identical because the base sample rate of the 5500 and 8400 is 32 kHz and the base sample rate of the 8500 a...

Страница 260: ...User Preset from within the RESTORE FROM PC dialog box B Click the RESTORE button This User Preset will be downloaded to the 8600S to which 8600S PC Re mote is currently connected If the User Preset is encrypted PC Remote will request its password To modify INPUT OUTPUT and SYSTEM SETUP Choose SETUP from the TOOLS menu To set a control click it it will become highlighted and then use the wheel on ...

Страница 261: ...nnection the END PC REMOTE button will remain displayed on the 8600S s front panel If you then select that button the ppp connection will close This behavior ensures that a user can tell from the 8600S s front panel if a remote connection is active A user can disconnect the PC connection at the 8600S if he or she wishes This minimizes the likelihood of someone s leaving a connection open while som...

Страница 262: ...S controlled by it Therefore you will only need multiple installations of PC Re mote having separate version numbers if you are controlling multiple 8600S and not all of your 8600S are running the same version of 8600S software and you do not want to upgrade at least one controlled 8600S to the latest version of 8600S PC Remote software Each version of 8600S PC Remote has its own top level folder ...

Страница 263: ...rectly updated You can do this two different ways Rename the Alias preferred Start the Optimod 8600S PC Remote executable you wish to use and rename your old Aliases with a slightly different name A new Alias folder with the new name will be created in the same location as the Optimod 8600S PC Remote executable Delete and Recreate the Alias Start the Optimod 8600S PC Remote executa ble you wish to...

Страница 264: ...im iter typically provides 2 5 to 3 dB more power at high frequencies which minimizes audible HF loss caused by preemphasis limiting Drums and percussion cut through the mix Highs are airy Problem material that used to cause audible distortion is handled cleanly While this design offers about the same loudness as 8500 processing its main goal is to make FM analog broadcasts more competitive with t...

Страница 265: ...oss and minimize high frequency loss Measurements The improved performance of the MX peak limiter can be verified by objective measurements with real world program material To measure the improvements in high frequency power handling capability and dynamic distortion we use a Stanford Research Systems SR785 Two Channel Dynamic Signal Analyzer Figure 3 9 on page 3 103 to compare the 8500 and 8600 T...

Страница 266: ...sets have essentially identical loudness and are designed to have similar spectral balance in the midrange frequencies and below A higher reading in a given frequency band indicates that that band has more power in the 8600 output than in the 8500 output HF Power Handling Figure 3 4 on page 3 98 shows a typical HF improvement about 2 6 dB more average HF energy using the new technology Coincidenta...

Страница 267: ...welfth octave ratio that compares the spectrum of the 8500 and 8600 outputs in a more detailed way than the third octave ratio seen in Figure 3 4 It shows the 8600 s 4 6 dB suppression of mainly harmonic clipping dis tortion centered at 3 668 kHz caused by sustained electric guitar riding on top of bass Figure 3 6 on page 3 100 shows a piece of material that has been used by others to demonstrate ...

Страница 268: ...ban processor was negligible compared to the effect of even modest multipath and considerably less than certain other non Orban processors produce with this material Note that the increase in the output starting slightly above 6 kHz does not represent distortion but is instead another manifestation of the 8600 s better HF power handling capa bility which we first presented in Figure 3 4 Figure 3 7...

Страница 269: ...age 3 102 shows a snare drum hit from Simple Minds Alive and Kicking The original CD dates from the days before hypercompression in mastering ruined the sound of most CDs the snare drum has plenty of peak level The new limiter preserves the transient center of the screen about 3 dB more effectively than does the old technology bottom Conclusions The marketing of broadcast audio processors has ofte...

Страница 270: ...easurement techniques it is possible to verify some subjective claims objectively by making measurements that use real world program material as the excitation These meas urements have verified that the 8600 s new limiter technology has significantly im proved high frequency power handling capability distortion control and transient punch compared to Orban s previous flagship FM processor Robert O...

Страница 271: ...that the 8600S is at fault The troubleshooting information in Section 5 will help you determine if the problem is with OPTIMOD FM or is somewhere else in the station s equip ment 3 Periodically check for corrosion Particularly in humid or salt spray environments check for corrosion at the input and output connectors and at those places where the 8600S chassis contacts the rack 4 Periodically check...

Страница 272: ...ng the pins Note the lead dress so you can re assemble the unit correctly B Detach the front panel from the unit a On each side of the chassis remove the three screws close to the front panel b Remove the front panel by sliding it out C Set the front panel face down on a soft cloth to prevent scratches D Using a 3 16 inch hex nut driver remove the four hex nuts holding the two side brackets and ce...

Страница 273: ...ard is now free and can be removed from the chassis 5 Removing the I O DSP Input Output DSP Board A If you have not yet done so remove the top cover steps 1 above B Unlock all XLR connectors Using a jeweler s screwdriver engage the locking mechanism in the center of the triangle formed by the three contact pins and turn counterclockwise until the XLR connector is no longer attached C Using a deep ...

Страница 274: ... to the AC line socket D Unplug the cable connecting the output of the power supply to the I O DSP board E Using a hex nutdriver remove the threaded standoff that supports the power supply s insulating cover F Remove the three Phillips screws holding the power supply to the main chas sis G Carefully lift the power supply up to remove it 7 Reattaching the Power Supply A Set power supply into main c...

Страница 275: ...ews located on each side of the front panel Be sure that the large side of each bracket is oriented toward the rack screw cutouts in the panel E Place the metal shield over the captive screws on each side of the front panel Align the shield so that its cutouts are aligned with the cables attached to the circuit board assembly Using a 3 16 nut driver screw four hex nuts onto the captive screws F At...

Страница 276: ...earch Systems DS340 or equivalent The technician should be thoroughly familiar with the operation of this equipment This procedure is useful for detecting and diagnosing problems with the 8600S s per formance It includes checks of frequency response noise and distortion perform ance and output level capability This performance audit assesses the performance of the analog to digital and digi tal to...

Страница 277: ...fety regulations in your country The 3 3V 1 2V and 2 5V supplies are locally regulated on the DSP and control boards see Section 6 Measure the power supply s regulated voltages at the DVM and observe the rip ple with an oscilloscope AC coupled Convenient sources of these voltages are the inductors adjacent to power supply connectors on the I O DSP board Con nect your probe to the sides of the indu...

Страница 278: ... Navigate to Setup STEREO ENCODER Press the Next button Set the ITU412 control to OFF g Navigate to Setup TEST Set controls as follows MODE Bypass NOTE Bypass defeats all compression limiting and program equaliza tion but retains the selected pre emphasis either 50 s or 75 s BYPASS GAIN 0 0 dB TONE FREQ 400 Hz TONE LVL 91 h Press the Next button i Set controls as follows TONE CHAN L R PILOT ON 3 A...

Страница 279: ...e you are still in BYPASS mode and that the BYPASS GAIN 0 0 dB see step 3 F C Connect the oscillator to the Left Analog Input XLR connector D Inject the Analog Input XLR connector with a level of 10 dBu with the oscilla tor set to 100 Hz This is 17 dB below the clip level which allows headroom for pre emphasis 75 s pre emphasis will cause 17 dB of boost at 15 kHz E Connect the audio analyzer to th...

Страница 280: ...evel of the oscillator at higher frequencies to compensate for the pre emphasis boost in the 8600S As the frequency increases you will have to reduce the output level of the generator to follow the 75 s deemphasis curve At 15 kHz you should have to reduce the output of the generator to ap proximately 7 dBu G Measure the THD N at the frequency levels listed below Frequency THD N Typical THD N Maxim...

Страница 281: ...at the frequencies measured at the 8600S s AES3 Digital Output fol low the values in the chart below within given tolerances Sample Rate Tolerance PPM Tolerance Hz 32 0 kHz 100 PPM 3 20 Hz 44 1 kHz 100 PPM 4 41 Hz 48 0 kHz 100 PPM 4 80 Hz 88 2 kHz 100 PPM 8 82 Hz 96 0 kHz 100 PPM 9 60 Hz E Repeat steps A through D for Digital Output 2 F Disconnect the digital source generator from the 8600S 8 Test...

Страница 282: ...25 ppm and verify that the 8600S s output sample rate tracks it See the comments in step C above E Set the 8600S s PILOT SYNC control to DIG IN F Sequentially apply AES3 or AES11 signals having 32kHz 44 1 kHz 48 kHz 88 2 kHz and 96 kHz sample frequencies to the 8600S s AES3 Digital Input Using the oscilloscope technique described in step C above verify that for each in put sample frequency any 860...

Страница 283: ... in units of dB below 100 modulation This is right into left stereo separation It should not exceed 55 dB 50 15 000 Hz L Set the TONE CHAN to L R and the TONE FREQ to 5000 0 HZ Measure the 38 kHz subcarrier suppression on the stereo monitor It should not exceed 60 dB M Measure the Pilot Modulation on the stereo monitor It should read 0 N Set Setup STEREO ENCODER COMP1 LVL to 0 0 Measure the de emp...

Страница 284: ...l modem cable See Networking and Remote Con trol starting on page 2 47 in particular step 4 on page 2 49 11 Return OPTIMOD FM to service A Restore your normal operating parameters using the notes you made in step 2 A on page 4 7 If you are using PC Remote and saved your normal operat ing parameters as a setup file you can restore it using the FILE RESTORE FROM PC command B Navigate to Setup TEST M...

Страница 285: ...exciter a ground loop may inject noise into the exciter s composite input especially if the exciter s input is unbalanced A Jensen JT 123 BMCF transformer can almost always cure this problem see page 1 15 The AES3 inputs and output are transformer coupled and have very good resistance to RFI If you have RFI problems and are using analog connections on either the in put or output using digital conn...

Страница 286: ...applied to the output you are using to drive your transmitter See step 9 E on page 2 30 and step 10 B on page 2 31 Audible Distortion On Air Make sure that the problem can be observed on more than one receiver and at sev eral locations Multipath distortion at the monitoring site can be mistaken for real distortion and will also cause falsely high modulation readings Verify that the source material...

Страница 287: ...namic single ended noise reduction see MB Down Ex pander on page 3 63 can be used to reduce the level of the noise below the level at which it appears at the input If you are using the 8600S s analog input the overall noise performance of the sys tem is usually limited by the overload to noise ratio of the analog to digital con verter used by the 8600S to digitize the input This ratio is better th...

Страница 288: ...essively If the 8600S and the rest of the transmission system are operat ing correctly subcarriers should experience no interference Interference from the stereo into a subcarrier is best diagnosed with a spectrum an alyzer First examine the spectrum of the 8600S s composite output to verify that program correlated noise is less than 80 dB below 100 modulation from 57 to 100 kHz Any inadvertent co...

Страница 289: ...very poor peak modulation control You will always achieve better peak control by defeating the pre emphasis and in put filters of an external stereo encoder permitting the 8600S to perform these functions without overshoot Section 1 of this manual contains a detailed explana tion of these and other system design considerations Dull Sound If you are using the Two Band structure dull sounding source...

Страница 290: ... 8600S s input This will cause innocuous linear crosstalk be tween the stereo main and subchannels Such crosstalk does not cause subjective quality problems unless it is very severe Audio Mute Occurs When Switching Between UL and Non UL Presets This is normal It occurs because the DSP code must be reloaded Talent Complains About Delay in Their Headphones Dedicate an output to low delay Monitor mod...

Страница 291: ...Digital Output 100 Peak Level Con trol When the BS 1770 Safety Limiter is ON adjusting the HD assigned 100 PEAK LEVEL CONTROL sets only the output headroom not loudness See step 12 on page 2 35 Loudness Drops Momentarily During HD Radio Analog Digital Crossfades The analog and digital channels in your transmission path have reversed polarity with respect to each other and a phase cancellation is o...

Страница 292: ... overshoot in the transmission link including the FM exciter following the 8600S or an inaccurate modulation monitor that is causing you to under modulate the carrier A station may suffer from any combination of these problems and they can have a remarkable effect on the overall competitiveness of a station s sound Section 1 of this manual provides a thorough discussion of system engineering con s...

Страница 293: ...les are connected properly B Check that you are using a null modem cable C Ensure that the null modem cable is connected to the 8600S s serial connector If your Modem Connect does not work A Ensure that the modem cables and phone lines are connected properly B Check that you have entered the correct phone number for connection C Check that you have entered the passcode correctly on the 8600S and t...

Страница 294: ... to make sure they are set up correctly A Click Start Programs Accessories Communications Network and Dia lup Connections to bring up the Network Connections screen B In the Network Connections window right click Optimod 8600S Direct and choose Properties C The Properties window opens for Optimod 8600S Direct D Click the Networking tab E Set Type of dial up server I am calling to PPP Windows 95 98...

Страница 295: ...f you already set this speed when you configured your PC ports you shouldn t have this problem The 8600S communicates at 115200 bps COM ports on some older PCs are incapable of communications at this rate and may not work reliably Most newer PCs use 16550 compatible UARTS which support the 115200 bps rate If you do see this warning message you can reset the Maximum BPS Speed by accessing PROPERTIE...

Страница 296: ...ked are used by this connection uncheck all except for Internet Protocol TCP IP M Select Internet Protocol TCP IP and then click the Properties button The Internet Protocol TCP IP Properties window opens N Choose Obtain an IP address automatically and Obtain DNS server address automatically O Click the Advanced button on the Internet Protocol TCP IP Window P In the Advanced TCP IP Settings select ...

Страница 297: ...ess automatically and Obtain DNS server address automatically J Click the Advanced button on the Internet Protocol TCP IP Window K In the Advanced TCP IP Settings select the General Tab make sure that no check boxes are checked L Click OK to dismiss the Advanced TCP IP Settings window M On the Properties window for Optimod 8600S Modem click the Ad vanced tab N Click OK to dismiss the window whose ...

Страница 298: ...nnecting to the 8600S Troubleshooting IC Opamps IC opamps are operated such that the characteristics of their associated circuits are essentially independent of IC characteristics and dependent only on external feed back components The feedback forces the voltage at the input terminal to be extremely close to the voltage at the input terminal Therefore if you measure more than a few millivolts dif...

Страница 299: ...e product this helps us to be prepared to service your unit upon arrival Also when you return a product to the factory for service we rec ommend you include a letter describing the problem Please refer to the terms of your Limited One Year Standard Warranty which ex tends to the first end user After expiration of the warranty a reasonable charge will be made for parts labor and packing if you choo...

Страница 300: ...sealing tape top and bottom in an H pattern Narrower or parcel post type tapes will not withstand the stresses applied to commercial ship ments Mark the package with the name of the shipper and with these words in red DELICATE INSTRUMENT FRAGILE Insure the package properly Ship prepaid not collect Do not ship parcel post Your Return Authorization Number must be shown on the label or the package wi...

Страница 301: ...rocessor is set for Limit Drive AGC Drive Two Band Drive and or Multi Band Drive gating level equalization noise reduction etc The dynamic range of the A D Converter which has a specified overload to noise ratio of 110 dB primarily governs it The dynamic range of the digital signal processing is 144 dB Total System Distortion de emphasized 100 modulation 0 01 THD 20 Hz 1 kHz rising to 0 05 at 15 k...

Страница 302: ...tronically balanced floating and symmetrical A D Conversion 24 bit 128x oversampled delta sigma converter with linear phase anti aliasing filter Filtering RFI filtered with high pass filter at 0 15 Hz Analog Audio Output Configuration Stereo Flat or pre emphasized at 50µs or 75µs software selectable Source Impedance 50 electronically balanced and floating Load Impedance 600 or greater balanced or ...

Страница 303: ...8 kHz 88 2 kHz and 96 kHz as configured in software Word Length Software selected for 24 20 18 16 or 14 bit resolution First order highpass noise shaped dither can be optionally added dither level automatically adjusted appro priately for the word length Connector XLR type male EMI suppressed Pin 1 chassis ground pins 2 and 3 trans former balanced and floating 110 impedance Output Level 100 peak m...

Страница 304: ... band width referenced to 100 modulation unweighted Distortion 0 02 THD Bypass mode de emphasized 20 Hz 15 kHz bandwidth ref erenced to 100 modulation unweighted Stereo Separation 50 dB 20 Hz 15 kHz 60 dB typical Crosstalk Linear 80 dB main channel to sub channel or sub channel to main channel referenced to 100 modulation Crosstalk Non Linear 80 dB main channel to sub channel or sub channel to mai...

Страница 305: ...or using a crossover Ethernet cable directly to a computer Ethernet Networking Standard TCP IP Remote Control GPI Interface Configuration Eight 8 inputs opto isolated and floating Voltage 6 15V AC or DC momentary or continuous 12VDC provided to facilitate use with contact closure Connector DB 25 male EMI suppressed Control User programmable for any eight of user presets factory presets bypass test...

Страница 306: ...nt components that cannot be removed or replaced with typical tools available in the field Field repair ordinarily consists of swapping entire PC boards The section starts with an overview of the 8600S system identifying circuit sections and describing their purpose Then each user repairable section is treated in detail by first giving an overview of the circuits followed by a component by compone...

Страница 307: ...rogram has crashed and automatically reboots the SC520 The DSP chips will continue to process audio until the time comes to reload DSP program code into them At this point the audio will mute for about a second until the DSP code download has finished If you hear a brief audio mute on air and you know that its input was not interrupted you can assume that the 8600S has rebooted for some reason Be ...

Страница 308: ... etc All other circuitry is surface mount and is not field repairable Switch Matrix and LED Indicators Located on display board Eleven front panel pushbutton switches are arranged in a matrix configured as three columns and four rows These switches are the primary element of the physical user interface to the 8600S control software The host microprocessor controls the system setup and function of ...

Страница 309: ...ed amplifier that has an adjustable digitally controlled gain Analog switches set the gain The outputs of a latch set the state of the switches By writ ing data to the latch the control circuits preset the gain This circuit feeds an RC low pass filter that applies the balanced signal to the analog to digital A D converter The digitally controlled gain circuitry was included on the circuit board fo...

Страница 310: ...converter SRC IC503B This ac cepts and sample rate converts any of the standard 32 kHz 44 1 kHz 48 kHz 88 2 kHz and 96 kHz rates in addition to any digital audio sample rate within the range of 32 kHz and 96 kHz The SRC converts the input sample rate to 64 kHz for processing by the DSP Wordclock 10 MHz Sync Reference Input Located on input output DSP board The 8600S s internal system clock which d...

Страница 311: ...nals requiring further relatively undemanding analog filter ing Analog Output Stages Located on Input Output DSP board The left and right analog signals emerging from IC306 are each filtered ampli fied and applied to a floating balanced integrated line driver which has a 50 output impedance The line driver outputs are applied to the RF filtered left and right analog output connectors These analog ...

Страница 312: ...put in the analog domain The composite output level controls COMP1 LVL and COMP2 LV therefore do not affect the absolute level of the SCA appearing at the 8600S s outputs The second SCA input can be jumpered to serve as a pilot reference source for RDS generators your 8600S is shipped from the factory in this configuration Component Level Description We will describe the signal path for composite ...

Страница 313: ...up to 512 kHz is used In stand alone stereo encoder mode the minimum sample rate is 64 kHz System initialization normally occurs when power is first applied to the 8600S and can occur abnormally if the 8600S s watchdog timer forces the SC520 to reboot Up on initialization the SC520 CPU downloads the DSP executable code stored in the flash memory This typically takes about 7 seconds Once a DSP chip...

Страница 314: ...utomatic gain control A I analog input A O analog output BAL balanced refers to an audio connection with two active conductors and one shield sur rounding them BBC British Broadcasting Corporation BNC a type of RF connector CALIB calibrate CIT composite isolation transformer CMOS complementary metal oxide semiconductor COFDM Coded Orthogonal Frequency Division Multiplex a robust type of digital mo...

Страница 315: ...y LP low pass LVL level MHF midrange high frequency MLF midrange low frequency MOD modulation N D noise and distortion N C no connection OSHOOT overshoot PC IBM compatible personal computer PCM pulse code modulation PPM peak program meter RAM random access memory RC resistor capacitor RDS RBDS Radio Broadcasting Data Service a narrowband digital subcarrier centered at 57 kHz in the FM baseband tha...

Страница 316: ...of a part includes the note selected or realignment required Orban normally maintains an inventory of tested exact replacement parts that can be supplied quickly at nominal cost Standardized spare parts kits are also available When ordering parts from the factory please have available the following informa tion about the parts you want Orban part number Reference designator e g C3 R78 IC14 Brief d...

Страница 317: ...ADER DOUBLE ROW 6P 2X3 J14 27421 004 01 CONNECTOR HEADER DOUBLE ROW 4P 2X2 J10 J13 27630 001 01 JUMPER PC MOUNT TEST PT TP100 27451 005 01 CONNECTOR STR DOUBLE ROW 26 PIN J11 27406 014 01 CONNECTOR SOCKET STRIP 14 PIN JP1 21139 000 01 CAPACITOR X7R 0 1UF 10 0805 C6 C7 C8 C9 C19 C20 C21 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C39 C43 C45 C177 C179 C182 C184 C186 C187 C188 C200 25008 000 01 IC O...

Страница 318: ...72 21141 000 01 CAPACITOR NPO 1000PF 1 0805 C11 20237 472 01 RESISTOR NETWORK 8R ISO 5 RN5 20132 100 01 RESISTOR 1 8W 1 100K R0805 R40 R41 R42 R43 R44 R45 R50 R54 R57 R59 R65 R70 R78 R83 R85 20131 147 01 RESISTOR 1 8W 1 14 7K 0805 R18 R73 20131 113 01 RESISTOR 1 8W 1 11 3K 0805 R87 20131 100 01 RESISTOR 10K 0805 R1 R2 R9 R33 R37 R38 R39 R72 20130 562 01 RESISTOR 1 8W 1 5 62K 0805 R74 20130 100 01 ...

Страница 319: ...TE IC701 20129 100 01 RESISTOR 100 OHM 0805 R335 R336 R337 R338 NO STUFF 27451 009 01 HEADER STR DOUBLE ROW 60P PCMNT J1001 27426 005 01 HEADER UNSHRD J1002 27426 003 01 CONNECTOR HEADER 3PIN SNGL RW J505 J1101 J5052 21137 447 01 CAPACITOR 47UF 25V 10 1206 C215 C216 C319 C320 C428 C429 21325 610 01 CAPACITOR 10UF 10 TANTALUM 3528 C221 C222 C223 C224 C225 C401 C402 C403 C404 C405 C406 C1001 C1002 C...

Страница 320: ...C943 C944 C945 C946 C947 C948 C1010 C1011 C1012 C1013 C1014 C1015 C1016 C1017 C1018 C1019 C1020 C1021 C1022 C1023 C1024 C1025 C1026 C1104 C1105 C1106 C1107 C1108 C1109 C1110 C1217 C1218 C1219 C1220 C1235 C1236 C1237 C1240 29015 000 01 XF SMT SCIENTI T501 T502 T503 T504 20130 499 01 RESISTOR R0805 4 99K 1 1 8W R211 R212 R213 R214 R215 R216 R217 R218 R1005 R1101 R1108 R1213 R1214 20130 150 01 RESIST...

Страница 321: ...03 IC304 IC305 IC403 IC404 IC405 IC406 IC407 24958 000 01 IC DRV134PA IC301 IC302 24307 901 01 IC LINEAR DC REG 5V POS I IC1203 24024 000 01 IC OPA2134PA IC201 IC202 23214 000 01 TSTR NPN MMBT3904 Q1001 22106 000 01 DIODE VSTT SMCJ26 DO214 CR201 CR202 CR203 CR204 CR301 CR302 CR303 CR304 22083 068 01 DIODE VLTG SUPRSR 6 8 VL CR1201 20130 210 01 RESISTOR 1 8W 1 2 10K 0805 R227 R228 R407 R408 R409 R4...

Страница 322: ...1 RESISTOR 0 1 5 36K 0805 R219 R220 R221 R222 20151 365 01 RESISTOR 0 1 3 65K 0805 R233 R234 R235 R236 R237 R238 R239 R240 20133 100 01 RESISTOR 1 8W 1 1 0M 0805 R251 R252 R305 R306 R425 R426 R513 20132 100 01 RESISTOR 1 8W 1 100K R0805 R1008 R1009 R1102 R1103 R1104 R1106 R1107 20131 825 01 RESISTOR 1 8W 1 82 5K 0805 R223 R224 R317 R318 R319 R320 R419 R420 R421 R422 R423 R424 20131 147 01 RESISTOR...

Страница 323: ... 000 01 INDUCTOR 3 9uH CHIP 1008 L5 L6 L7 L8 21142 560 01 CAPACITOR 560pf 50v 1 NPO 0805 C9 C10 C11 C12 24025 000 01 IC 8DIP BUF634P IC3 IC4 24960 000 01 IC OPA2134UA IC1 IC2 21147 022 01 CAPACITOR 22pf 0805 1 C1 C2 C3 C4 21146 310 01 CAPACITOR 0 01uF 0805 10 0805 C5 C6 C7 C8 20170 182 01 RESISTOR 1 82K 1 8W 0 1 0805 R17 R18 R19 R20 20508 350 01 TRIMPOTS 50K 18T SIDE ADJUST VR1 VR2 21139 000 01 CA...

Страница 324: ...ifferences between the drawings and your unit are probably due to product improvements or production changes since the publication of this manual If you intend to replace parts please read page 6 16 Please note that because sur face mount parts are used extensively in the 5500 few parts are field replaceable Servicing ordinarily occurs by swapping circuit board assemblies However many vulnerable p...

Страница 325: ...Schematic 5 of 12 6 40 DSP Enhanced Serial Audio Inter face Schematic 6 of 12 6 41 DSP Control Interface Schematic 7 of 12 6 42 DSP External Memory Control In terface Schematic 8 of 12 6 43 DSP Power and Ground Schematic 9 of 12 6 44 I O Control Interface Schematic 10 of 12 6 45 Clock Generation and CPLD Schematic 11 of 12 6 46 Power Distribution Schematic 12 of 12 6 47 Display Board Front Panel L...

Страница 326: ......

Страница 327: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 27 INPUT OUTPUT INPUT OUTPUT DSP SECTION DSP SECTION DISPLAY ASSEMBLY AC LINE SUPPLY POWER WARNING UNDER SHIELD ARE EXPOSED TO PARTS CONTROL BOARD BOARD ...

Страница 328: ...6 28 TECHNICAL DATA ORBAN MODEL 8600S CONTROL BOARD PARTS LOCATOR ...

Страница 329: ... PIO2 6 GP ME MCS 16 N PIO2 5 GP IOCS 16 N PIO1 3 GP IRQ1 0 PIO2 3 GP IRQ0 PIO2 2 GP IRQ1 PIO1 5 GP IRQ8 PIO2 1 GP IRQ2 DACK 0 N DRE Q0 GP D 0 1 5 GP A 0 2 5 IS A_A16 IS A_A17 IS A_A18 IS A_A19 IS A_A20 IS A_A21 IS A_A22 IS A_A23 IS A_A25 IS A_A24 IS A_IOW R N IS A_IORD N IS A_RE S E T IS A_AE N IS A_ME MRD N IS A_ME MWR N 1 2 3 4 5 6 7 8 10 9 RN2 RNE T4 7K DRE Q0 PIO7 GP DRQ1 3 3V 3 3V DACK 0 N P...

Страница 330: ...3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 MA12 MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 MA12 BA0 BA1 MD0 MD1 MD2 MD3 MD4 MD5 MD6 MD7 MD8 MD9 MD10 MD11 MD12 MD13 MD14 MD15 MD 0 3 1 MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 MA12 MA 0 1 2 MD16 MD17 MD18 MD19 MD20 MD21 MD22 MD23 MD24 MD25 MD26 MD27 MD28 MD29 MD30 MD31 3 3V CK E LOW RA MCS N RA MRA S N RA MCA S N RA MWE N S DQM 0 S DQM 1 S D...

Страница 331: ...AD 0 3 1 PCI_ AD24 PCI_ CB E 0 N PCI_ CB E 1 N PCI_ CB E 2 N PCI_ CB E 3 N PCI_ RE S E T N PCI_ DE VS E L N PCI_ S TOP N PCI_ IRDY N PCI_ TRDY N PCI_ FRA ME N PCI_ PE RR N PCI_ S E RR N PCI_ PARITY PCI_ RE Q0 N PCI_ GNT0 N PCI_ INTA N 3 3V 3 3V PCI_ CL KOUT PCI_ CL KRE TURN CNFGDIS N MDIO C3 18PF C4 18PF C6 0 1UF C7 0 1UF C8 0 1UF C5 10PF R1 9 49 9 OHM R2 0 49 9 OHM R2 2 49 9 OHM R2 3 49 9 OHM R2 ...

Страница 332: ... J8 HDR 2X2 KE Y KE Y TO P OW E R ON LE D DB 25 M NC AF2 5 NC AF2 3 NC AF1 NC AE 25 NC AE 24 NC AE 1 NC AD25 NC AD26 NC AD1 NC AD2 NC AC2 5 NC AC3 NC AA26 NC AB4 NC AB3 NC E 23 NC D23 NC C2 2 NC E 3 NC C5 NC C6 NC B3 NC B4 NC B6 NC A3 NC AC1 7 NC AD17 NC AE 17 NC AC1 6 NC AD16 NC AE 16 NC AF1 5 NC AF1 6 NC AE 15 NC AD14 NC AD15 NC AE 14 NC AF1 4 NC AF1 3 NC AE 13 NC AD13 NC AD18 NC AE 18 NC AF1 8 ...

Страница 333: ... 56 0 01UF C1 58 0 01UF C1 60 0 01UF C1 62 0 01UF C1 80 0 01UF C1 4 1 0UF C1 7 1 0UF C1 25 1 0UF C1 32 1 0UF C1 51 1 0UF C1 53 1 0UF C1 55 1 0UF C1 57 1 0UF C1 59 1 0UF C1 61 1 0UF C1 75 1 0UF C1 78 1 0UF C1 81 1 0UF C1 83 1 0UF C2 01 1 0UF C1 3 10UF C1 5 10UF C1 6 10UF C1 8 10UF C2 02 10UF IN 1 G ND 2 OUT 3 T AB 4 U14 LT1 963 2 5 IN 1 G ND 2 OUT 3 T AB 4 U15 LT1 963 3 3 2 5V 3 3V 3 3V 3 3V 3 3V C...

Страница 334: ...6 34 TECHNICAL DATA ORBAN MODEL 8600S 5700 8600S I O DSP BOARD PARTS LOCATOR DRAWING 32370 860 01 ...

Страница 335: ...4_SDI 3_0 IC603_SDI 3_0 IC602_SDI 3_0 IC601_SDI 3_0 IC602_SDI 2_0 IC602_SDI 0_0 IC602_SDI 1_0 IC601_SDI 2_0 IC601_SDI 0_0 IC601_SDI 1_0 DFS CK S01 DARST N ADRST N SRCRST N OUT_F CL K OUT_BCL K IN_FCL K IN_BCL K PILOT_F CL K 16 384MHZB AOUT_MCL K AI N_MCL K PILOT_DATA COMP _DATA DOUT2_DATA DOUT1_DATA AOUT_DATA TX_BCL K _2 RXCK O_2 RX_L RCK _2 RX_BCL K _2 TX_L RCK _2 TX_MCL K _2 TX_BCL K _1 TX_L RCK...

Страница 336: ... R220 5 36K 0 1 R222 5 36K D0 3 Q0 2 D1 4 Q1 5 D2 7 Q2 6 D3 8 Q3 9 D4 13 Q4 12 D5 14 Q5 15 D6 17 Q6 16 D7 18 Q7 19 O E 1 C L K 11 V C C 20 G ND 10 IC209 74HCT374PW D1 2 D2 15 D3 10 D4 7 GND 5 IN1 1 IN2 16 IN3 9 IN4 8 S1 3 S2 14 S3 11 S4 6 NC 12 V s s 4 V dd 13 IC203 ADG442ABRZ D1 2 D2 15 D3 10 D4 7 GND 5 IN1 1 IN2 16 IN3 9 IN4 8 S1 3 S2 14 S3 11 S4 6 NC 12 V s s 4 V dd 13 IC204 ADG442ABRZ 5 L207 1...

Страница 337: ...R 1 2 3 1000PF L306 FILTER C R 302 T R ANS ZO R B C R 304 T R ANS ZO R B R332 R334 L310 C328 C330 C324 C326 R336 R338 COMPONENT REF DESIGNATOR 8600S VALUE 93xx VALUE 3 9uH 1008 NO STUFF NO STUFF 1200uH 5 NO STUFF 49 9ohm 1 0805 NO STUFF 100ohm 1 0805 NO STUFF 475ohm 1 0805 NO STUFF 1000pF 1 50V 0805 NO STUFF 1500pF 1 50V 0805 R340 R342 3 3V SHT11 DFS CKS01 15V 15V AGND4 15V AOUT_MCLK DARST N OUT_B...

Страница 338: ... 04A OPA2134UA 5 6 7 IC4 04B OPA2134UA 3 2 1 IC4 06A OPA2134UA 15V 15V AGND5 Servo f 3dB 0 01Hz Servo f 3dB 0 01Hz TO COMPOSITE SCA DAUGHTER BOARD AGND5 4 8 IC4 03C OPA2134UA 15V 15V AGND5 4 8 IC4 05C OPA2134UA 15V 15V AGND5 4 8 IC4 06C OPA2134UA 15V 15V AGND5 4 8 IC4 07C OPA2134UA 15V 15V AGND5 COM POSITE D A CONVERTER PILOT REF D A CONVERTER R415 3 48K R417 3 48K R416 3 48K R418 3 48K SHT11 SHT6...

Страница 339: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 39 8600S I O BOARD COMPOSITE SCA DAUGHTERBOARD SHEET 4b of 12 62310 000 02 1 ...

Страница 340: ... TDMIA 61 BYPA 8 MUTEA 19 LRCKOA 62 BCKOA 63 SDOUTA 64 RATIOA 17 RDYA 18 IC503A IC SRC4184I PAG RCKIB 29 LRCKIB 54 BCKIB 53 SDINB 55 TDMIB 52 BYPB 41 MUTEB 30 LRCKOB 51 BCKOB 50 SDOUTB 49 RATIOB 32 RDYB 31 IC503B IC SRC4184I PAG DGND DGND REF_M CLK REF_MCLK DOUT1_DATA SHT11 DOUT1_DATA OUT_FCLK OUT_BCLK DOUT2_DATA SHT11 DOUT2_DATA OUT_FCLK OUT_BCLK REF_M CLK REF_M CLK TX_BCLK_1 SHT11 TX_BCLK_1 TX_M...

Страница 341: ...2_0 SDO3_0 PC8_0 87 SDI3_0 SDO2_0 PC9_0 88 HCKT_0 PC5_0 STCLK 89 FST_0 PC4_0 90 SCKT_0 PC3_0 91 HCKR_0 PC2_0 SRCK 92 SCKR_0 PC0_0 93 FSR_0 PC1_0 94 SDI0_1 SDO5_1 PE6_0 97 SDI1_1 SDO4_1 PE7_0 98 SDI2_1 SDO3_1 PE8_0 99 SDI3_1 SDO2_1 PE9_0 100 SDI0_3 SDO5_3 PE6_1 118 SDI1_3 SDO4_3 PE7_1 119 SDI2_3 SDO3_3 PE8_1 120 SDI3_3 SDO2_3 PE9_1 121 SDI0_2 SDO5_2 PC6_1 122 SDI1_2 SDO4_2 PC7_1 123 SDI2_2 SDO3_2 P...

Страница 342: ...DA1 IRQC PG7 129 MODD0 PG1 140 MODC0 PLOCK PG0 141 MODB0 IRQB PG6 142 MODA0 IRQA PG5 143 SCAN 144 IC605B DSP B56724AG XTAL 79 EXTAL 80 TMS 101 TCK 102 TDI 103 TDO 104 PINIT NMI0 105 WDT 106 RESET 111 SS_1 HA2_1 112 MISO SDA 113 MOSI HA0 114 SCK SCL 115 HREQ PH4 116 SS_0 HA2_0 117 MODD1 PG2 126 MODC1 NMI1 127 MODB1 IRQD PG8 128 MODA1 IRQC PG7 129 MODD0 PG1 140 MODC0 PLOCK PG0 141 MODB0 IRQB PG6 142...

Страница 343: ... PA11 55 LAD12 PA12 54 LAD13 PA13 53 LAD14 PA14 52 LAD15 PA15 51 LAD16 PA16 50 LAD17 PA17 45 LAD18 PA18 44 LAD19 PA19 43 LAD20 PA20 42 LAD21 PA21 41 LAD22 PA22 40 LAD23 PA23 39 LALE 3 LCS0 4 LCS1 5 LCS2 6 LCS3 7 LCS4 8 LCS5 9 LCS6 10 LCS7 11 LW E LSDDQM 16 LOE LSDRAS LGPL2 17 LGPL5 18 LSDA10 LGPL0 19 LCKE 20 LCLK 21 LBCTL 22 LSDW E LGPL1 23 LSDCAS LGPL3 24 LGTA LGPL4 UPW AIT 25 LA0 PA24 26 LA1 PA2...

Страница 344: ...GND 82 CORE_VDD 95 CORE_GND 96 IO_VDD 107 IO_GND 108 CORE_VDD 109 CORE_GND 110 CORE_VDD 130 CORE_GND 131 IO_VDD 132 IO_GND 133 CORE_GND 47 IO_VDD 48 IO_GND 49 IO_GND 59 CORE_VDD 60 CORE_GND 61 CORE_VDD 46 IO_VDD 58 IC604D DSP B56724AG 3 3V 3 3V 3 3V 3 3V 3 3V 1 2V 1 2V 1 2V C610 0 01UF C622 0 01UF C634 0 01UF C646 0 01UF C604 0 01UF C670 0 01UF C616 0 01UF C640 0 01UF C664 0 01UF C628 0 01UF C652 ...

Страница 345: ...eserved reserved reserved reserved reserved reserved reserved reserved D 0 7 D0 D1 D2 D3 D4 D5 D6 D7 D 0 7 SHT2 11 PIC_MCLK INGAIN_CS N DOUTSR_CS N SOUT2 SIN2 PIO28 CTS2 N RTS2 N SSI_DO SSI_CLK 24 576MHZB SSI_DI START DSP_RST N FROM CONTROL PCA IFMTA0 1 IFMTA1 2 IFMTA2 3 OFMTA0 4 OFMTA1 5 OW LA0 6 OW LA1 7 LGRPA0 9 LGRPA1 10 DDNA 11 DEMA0 12 DEMA1 13 MODEA0 14 MODEA1 15 MODEA2 16 IFMTB0 48 IFMTB1 ...

Страница 346: ...Z I0 426 16 I0 423 17 I0 417 19 I0 414 20 I0 408 21 I0 405 22 I0 429 23 I0 399 24 I0 420 25 I0 396 26 I0 390 27 I0 387 28 I0 GCK1 381 30 IO 402 31 I0 384 35 F unction B lock 1 I0 GTS3 363 2 I0 GTS4 360 3 I0 366 4 I0 GTS1 354 5 I0 GTS2 351 6 I0 348 7 I0 345 9 I0 342 10 I0 336 11 I0 339 12 I0 333 13 I0 330 14 I0 327 15 I0 375 142 I0 GSR 372 143 F unction B lock 2 Vccio2 5V 3 3V 1 Vccint3 3V 8 GND 18...

Страница 347: ...OL PCA 3 3V R1212 1 62K L1201 1 5uH L1202 1 5uH M7 M8 M9 M10 M11 M12 1 2 J1203 HDR 2 SS TRCK 1 PVIN 6 PVIN 7 SW 8 SW 9 PGND 10 PGND 11 EN 12 VCC 13 AVIN 14 AGND 15 SYNC 16 FB 2 PGOOD 3 COMP 4 NC 5 G ND 17 IC1202 LM20134MH IN 1 G ND 2 OUT 3 T AB 4 IC1203 78MO5CT AGND AGND C1239 10UF C1240 0 1UF SS TRCK 1 PVIN 6 PVIN 7 SW 8 SW 9 PGND 10 PGND 11 EN 12 VCC 13 AVIN 14 AGND 15 SYNC 16 FB 2 PGOOD 3 COMP ...

Страница 348: ...6 48 TECHNICAL DATA ORBAN MODEL 8600S FRONT REAR FRONT PANEL PARTS LOCATOR DIAGRAM 32275 000 09 ...

Страница 349: ...OTARY ENCODER SOEARTH MNT HOLE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 JP203 CABLE_26P 1 D 0 D 3 D 2 D 5 D 4 D 7 D 6 D LED DISROWD ENCODER DISCOLA DISROWA DISROWB DISROWC DISCOLB IN_SENSIT N C N C N C N C N C D 0 7 D 0 7 1 2 3 4 JP202 HDR 4 5V 9VB FROM POWER SUPPLY 50V C2 0 1UF 50V C3 0 1UF 50V C4 0 1UF 50V C5 0 1UF 50V C6 0 1UF 50V C7 0 1UF 50V C8 0 1UF 5 6 IC7C 74HC1...

Страница 350: ...3 4 S6 1 2 3 4 S7 1 2 S8 1 2 S9 1 2 S10 1 2 S11 RECALL MODIFY SETUP PREV NEXT SOFT 2 SOFT 4 SOFT 3 SOFT 1 PREV NEXT ESCAPE RECALL MODIFY SETUP CONTRAST FP_ROW26 FP_ROW27 FP_ROW28 FP_ROW29 NOTE BAR GRAPHS ARE NUMBERED LIKE AN IDC 1 2 CR17 LED BI COLOR 1 2 J5 HDR 2_RA 5V_FP FP_COL16 FP_COL17 FP_COL21 FP_COL22 FP_COL23 FP_ROW26 FP_ROW27 FP_ROW28 FP_ROW29 FP_COL19 FP_ROW15 FP_ROW16 FP_ROW17 FP_ROW18 F...

Страница 351: ...16 P2 8x2 POSTS F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F25 F26 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 P3 8x2 POSTS FY0 FY1 FY2 FY3 FY4 FY5 FY6 FY7 FY8 FY9 FY10 FY11 FY12 FY13 FY14 FY15 FS2 FS3 FS4 F24 5V P4 1 and P4 2 provide GND to gnd plane on front bd There is no other connection to GND on the front bd to the plane D0 3 Q0 2 D1 4 Q1 5 D2 7...

Страница 352: ...6 52 TECHNICAL DATA ORBAN MODEL 8600S ...

Страница 353: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 53 ...

Страница 354: ...6 54 TECHNICAL DATA ORBAN MODEL 8600S ...

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