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Orban OPTIMOD-FM 8500S, Руководство по эксплуатации

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OPTIMOD-FM DIGITAL 

INTRODUCTION   

1-13 

 

RJ45 Ethernet Connector 

The 8500S can be connected to a 10, 100, or 1000 Gb/sec Ethernet network that sup-
ports the TCP/IP protocol and is connected via CAT5 or CAT6 cabling. 

See 

Networking and Remote Control

  on page 2-44 for more information. 

Wordclock/10 MHz Sync Reference Input 

The sync reference input appears on a female BNC jack grounded to the 8500S’s 
chassis. It accepts a 1x 5V p-p squarewave wordclock signal at 32, 44.1, 48, 88.2, or 96 
kHz, or a 10 MHz sinewave or squarewave signal, 0.5 to 5 V peak. 10 MHz is a com-
mon output frequency produced by GPS and rubidium frequency standards. You can 
configure the 8500S to lock its 19 kHz pilot tone and output sample frequency to 
this input. 

The sample frequency at the 8500S’s digital output does not have to be the same as 
the reference frequency to be locked to it. If the output frequency is different, the 
output sample frequency will be the product of a quotient of integers times the ref-
erence frequency. For example, if the reference frequency is 96 kHz and the output 
frequency is set to 32 kHz, the actual output frequency will be 1/3 x the reference 
frequency. If the reference frequency is 48 kHz and the output frequency is set to 
44.1 kHz, the actual output frequency will be 147/160 x the reference frequency. 

Do not apply an AES3id or AES3 to this input. 

Location of OPTIMOD-FM 

Optimal Control of Peak Modulation Levels  

The audio processing circuitry in OPTIMOD-FM produces a signal that is pre-
emphasized to either the 50

μ

s or 75

μ

s standard pre-emphasis curve. It is precisely 

and absolutely high-frequency-controlled and peak-controlled to prevent over-
modulation, and is filtered at 15 kHz to protect the 19 kHz pilot and prevent distor-
tion caused by aliasing-related non-linear crosstalk. If this signal is fed directly into a 
stereo encoder, peak modulation levels on the air will be precisely controlled. How-
ever, if the audio processor’s signal is fed to the stereo encoder through any circuitry 
with frequency response errors and/or non-constant group delay, the peaks will be 
magnified. Peak modulation will increase, but average modulation will not. The 
modulation level must therefore 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 net-
works in stereo encoders typically introduce frequency response errors and non-
constant group delay. There are three criteria for preservation of peak levels 
through the audio system: 

 

Содержание OPTIMOD-FM 8500S

Страница 1: ...Operating Manual OPTIMOD FM 8500S Digital Audio Processor Version 1 0 Software...

Страница 2: ...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 appear...

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...

Страница 4: ...apr svente autoris Safety Instructions Spanish Hacer funcionar el aparato s lo con la tensi n y clase de corriente se aladas en la placa indicadora de caracter sticas Reemplazar los fusibles s lo por...

Страница 5: ...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...

Страница 6: ...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...

Страница 7: ...Operating Manual OPTIMOD FM 8500S Digital Audio Processor Version 1 0 Software...

Страница 8: ...Reference Input 1 13 LOCATION OF 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 access...

Страница 9: ...NTROLLER INSTALLATION OPTIONAL 2 12 If you are using Orban 8200ST external 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 AUTO...

Страница 10: ...2 95 RDS RBDS GENERATOR 2 97 Using System I O 2 97 Table 2 1 System I O RDS controls and defaults 2 98 Using Processing Presets 2 99 Using the Terminal Server 2 100 Using Telnet to Control the Termin...

Страница 11: ...cture s Setup Controls 3 47 Table 3 6 Two Band Controls 3 47 THE FIVE BAND STRUCTURE 3 51 Putting the Five Band Structure on the Air 3 51 Customizing the Settings 3 52 Table 3 7 Multiband Controls 3 5...

Страница 12: ...UBASSEMBLY REMOVAL AND REPLACEMENT 4 2 FIELD AUDIT OF PERFORMANCE 4 6 Table 4 1 Typical Power Supply Voltages and AC Ripple 4 7 Figure 4 1 Typical Frequency Response 30Hz to 15 kHz 4 9 Section 5 Troub...

Страница 13: ...ions 5 9 You Cannot Access the Internet After Making a Direct or Modem Connection to the 8500S 5 9 OS SPECIFIC TROUBLESHOOTING ADVICE 5 10 Troubleshooting Windows 2000 Direct Connect 5 10 Troubleshoot...

Страница 14: ...of 12 6 35 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 Daughterboa...

Страница 15: ...trol 2 43 analog fallback 2 28 analog I O 1 10 analog input circuit description 6 9 ref level I O setup 2 26 analog input 2 6 analog landline 1 20 analog output circuit description 6 11 analog output...

Страница 16: ...ttons 3 1 buzz 5 1 bypass local 1 27 PC remote 1 28 remote interface 1 27 test mode 1 25 Bypass mode activate via GPI 2 43 C cable shielding 2 11 type recommended for analog I O 2 5 CD mastering and p...

Страница 17: ...nob 3 1 controls contrast 3 1 HD audio 3 70 Speech Detect 3 9 corrosion 4 1 Coupling Control 3 58 Crossfade 3 68 Crossover 2 Band 3 50 AGC 3 37 Band 1 Band 2 3 62 D D A converter circuit description 6...

Страница 18: ...ory service 5 15 Filter Pilot Protection 3 43 final clip drive 3 41 Final clipper Defeating 2 28 Firewall 2 59 81 Firmware updating 8500 2 92 five band full modify control list 3 52 five band 3 51 Fiv...

Страница 19: ...31 High frequency limiter 3 9 High Frequency Limiter 3 61 high pass filter 30 Hz 3 31 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 37 In...

Страница 20: ...5 7 insufficient due to poor peak control 5 1 Loudness adjusting HD FM 5 7 match HD and FM channels 3 68 71 Loudness and distortion 3 4 loudness control in digital radio 2 35 loudness meter 1 23 Loud...

Страница 21: ...ment 4 8 analog connecting 2 6 analog specifications 6 2 composite 2 8 composite specifications 6 4 digital setting dither 2 33 digital setting sample rate 2 32 digital setting sync 2 32 digital setti...

Страница 22: ...45 saving user 3 8 17 sharing between 5700s 3 85 user presets 1 8 Presets factory 3 21 Gregg 3 23 Impact 3 23 Instrumental 3 23 Jazz 3 24 Loud 3 24 News Talk 3 25 Rock 3 25 Sports 3 25 Table of factor...

Страница 23: ...ifications 6 4 inputs 1 11 interference from stereo 5 4 modulation reduction 2 23 SCA inputs 2 5 screen display 3 1 screens System Setup 2 15 scripted control 2 49 Security lock immediately 2 41 secur...

Страница 24: ...ts 1 11 subnet mask 2 45 Sync control HD 3 69 system setup quick setup 2 15 System Setup screen 2 15 T Talk format 3 25 Tally output Programming 2 25 Silence sense threshold 2 24 Wiring 2 4 TCP IP set...

Страница 25: ...rranty 1 28 Warranty 1 28 warranty 6 6 whistle on air troubleshooting 5 4 Window Release 3 36 Window Size 3 36 Windows installing services 2 57 Windows 2000 adding direct serial connection 2 62 66 82...

Страница 26: ......

Страница 27: ...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 cleanli...

Страница 28: ...utput 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 sampl...

Страница 29: ...ine interpolation composite limiter operating at 512 kHz sample rate to generate the pilot tone stereo baseband signal and control its peak level The composite limiter is a unique you can only do this...

Страница 30: ...gital radio processed signal or the low delay monitor signal A loop through connection is provided to enable a ratings encoder such as Arbitron to be inserted between the output of the audio processin...

Страница 31: ...subcarrier inputs are mixed with the output of the 8500S s stereo encoder before application to the composite output connectors One in put can be re jumpered to provide a 19 kHz pilot reference output...

Страница 32: ...The 8500S can increase the density and loudness of the program material by multiband compression limiting and clipping improving the consistency of the station s sound and increasing loudness and defi...

Страница 33: ...l from either the 8500S s GPI port or the 8500S PC Remote application or by automation to per mit broadcast system test and alignment or proof of performance tests OPTIMOD FM contains a built in line...

Страница 34: ...es DSP code to be reloaded User Presets User Presets permit you to change a Factory Preset to suit your requirements and then store those changes You can store more than 100 User Presets limited only...

Страница 35: ...oopthrough mode Digital AES3 Left Right Input Output The digital input and output conform to the professional AES3 standard They both have sample rate converters to allow operation at 32 44 1 48 88 2...

Страница 36: ...rear panel Output impedance is 50 balanced and floating The outputs can drive 600 or higher impedances balanced or unbalanced The peak output level is adjustable from 6 dBu to 24 dBu Level control of...

Страница 37: ...connecting an on off signal from your subcarrier generator See page 2 7 You de fine the amount of reduction in percent using the procedure in step 2 on page 2 23 See page 2 42 for information on prog...

Страница 38: ...detects such an error it automatically switches the input to Analog No Function Tally output is disabled You can reconfigure the functions of the inputs and outputs via System Setup For example if yo...

Страница 39: ...ut frequency is set to 44 1 kHz the actual output frequency will be 147 160 x the reference frequency Do not apply an AES3id or AES3 to this input Location of OPTIMOD FM Optimal Control of Peak Modula...

Страница 40: ...ght distort the shape of the waveform are interposed between the audio processor and the stereo encoder We therefore recommend using the 8500S with its built in stereo encoder whenever practical Best...

Страница 41: ...l Control of Peak Modula tion Levels on page 1 13 If the transmitter is accessible You can achieve the most accurate control of modulation peaks by locating OPTIMOD FM at the transmitter site and then...

Страница 42: ...he 8500S s left and right analog or preferably digital outputs If possible bypass the pre emphasis network and the input low pass filters in the encoder so that they cannot introduce spurious peaks Be...

Страница 43: ...ssy compression system the higher the data rate the less the peak levels will be corrupted by added noise so use the highest data rate practical in your system It is practical though not ideal to use...

Страница 44: ...ning a transmission system Any problems can be minimized by always driving a digital STL with the 8500S s AES3 digital output which will provide the most accurate interface to the STL The digital inpu...

Страница 45: ...minimize any audible noise buildup caused by compression within the 8500S Some microwave links can be modified so that the deviation from linear phase is less than 10 from 20 Hz to 15 kHz and frequen...

Страница 46: ...re similar requirements for FM exciters Nevertheless in some installations some overshoot is inevitable If this is a problem in your installation the 8500S s remote control feature offers the means to...

Страница 47: ...nsmission Levels and Metering Meters Studio engineers and transmission engineers consider audio levels and their meas urements differently so they typically use different methods of metering to monito...

Страница 48: ...level and equipment that clips at 18 or 21 dBu will experi ence noticeable clipping on some program material In facilities that use the BBC standard PPM maximum program level is usually PPM4 for musi...

Страница 49: ...oduce including the pilot tone under any program processing or setup condition except when the processing is switched to BYPASS or when the final clipper is defeated in Setup 100 ordinarily correspond...

Страница 50: ...dness level at the consumer s receiver is correct when the 8500S s digital radio processing chain is adjusted to make the dominant program material indicate 0 dB on the 8500S s Loudness Level meter an...

Страница 51: ...is delay is likely to be audible as a distinct echo which most talent finds uncomfortable and distracting However the normal delay through the 8500S from input to FM outputs is about 18 ms when HARD o...

Страница 52: ...ing in two main ways 1 the 8500S UL presets still use the 8500S s stereo en hancement equalization section advanced technology AGC composite limiter and multiplex power controller and 2 the 8500S UL p...

Страница 53: ...You can set the bypass gain with the BYPASS GAIN control located to the right of the MODE control B Begin EAS broadcast After the EAS broadcast resume normal processing C Set the MODE to OPERATE This...

Страница 54: ...ited States Orban warrants Orban products against defects in material or workmanship for a period of five years from the date of original purchase for use and agrees to repair or at our option replace...

Страница 55: ...ects in material and workman ship for a period of five years from the date of original purchase for use This war ranty does not cover damage resulting from misuse or abuse or lack of reasonable care o...

Страница 56: ......

Страница 57: ...an 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 8500S e g for servicing it is best to ship it in the original...

Страница 58: ...ectly to the 8500S 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 a...

Страница 59: ...ppropri 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...

Страница 60: ...rk See Networking on page 2 44 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 f...

Страница 61: ...n 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...

Страница 62: ...he 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 Co...

Страница 63: ...utput line carries both the left and right stereo channels The connection is 110 balanced The AES3 standard specifies a maximum cable length of 100 meters While almost any balanced shielded cable will...

Страница 64: ...ause of the importance of proper ratings encoder operation your Optimod will flash a warning on its screen and on PC Remote if it enters the fallback mode This will help detect potential failures in t...

Страница 65: ...ops can occur if your exciter s composite input is unbalanced although you can usually configure system grounding to break them for example by connecting the 5518 s and exciter s power cords to adjace...

Страница 66: ...from 100 mV p p to 10 V p p to produce 10 injection with respect to 100 modulation 4 V p p at the 8500S s composite outputs The factory set ting is 4 V p p to produce 10 injection VR1 and VR2 on the C...

Страница 67: ...output impedances and high input impedances a balanced input will pro vide common mode rejection and prevent ground loops regardless of whether it is driven from a balanced or unbalanced source The 8...

Страница 68: ...udio level controller ahead of the 8500S Continue with Quick Setup on page 2 15 If you are using an Orban 6300 as a studio level controller refer to its Operating Manual If you are using Orban 8200ST...

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...

Страница 70: ...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 tone corresponds to 100 modulation B Adj...

Страница 71: ...change a parameter like an output level it is usually necessary to hold down the soft button while turning the knob However if there is only one parameter on a screen like choosing 50 or 75 s pre emph...

Страница 72: ...tton C Turn the knob to specify the date at which Daylight Saving Time begins in your area D Press the Next button E Turn the knob to specify the date at which Daylight Saving Time ends in your area F...

Страница 73: ...aware is NICAM 9 Set operating levels You will set the operating levels of the 8500S to match the input levels it is re ceiving so the 8500S s AGC can operate in the range for which it was designed T...

Страница 74: ...t receives the ana log output does not have to restore the pre emphasis However if you cannot defeat the pre emphasis in your stereo encoder or if you will use the analog output for monitoring set the...

Страница 75: ...OUTPUT SAMPLE RATE to 32 44 1 48 88 2 or 96 kHz The internal sample rate converter sets the rate at the 8500S s digital output This adjustment allows you to set the output sample rate to ensure compa...

Страница 76: ...indicating instrument as specified by the regulatory authority in your country If you are required to obey the multiplex power limits specified by ITU R BS412 9 you may seldom see peaks hitting 75 kH...

Страница 77: ...DIALNORM that you specify in I O Setup Quick Setup does not in clude setup of the BS 1770 safety limiter see step 12on page 2 35 for setup instructions E Set the analog output level a Press the Next b...

Страница 78: ...the Main Screen when the 8500S is being con trolled by the PC Remote application A Navigate to Setup Next TIME DATE AND ID STATION ID B Use the knob to set the each character in the ID Use the Next an...

Страница 79: ...tage of using the modulation reduction function is that the pilot injec tion stays constant when the audio modulation is reduced However using the modulation reduction function is slightly inconvenien...

Страница 80: ...y outputs but only the digital input silence detector is used for automatic input switching See step D below Silence sense will be activated if either channel falls silent thus also pro tecting agains...

Страница 81: ...t the level at either or both digital input channels is below the threshold set in step 3 on page 2 24 AES Input Error Indicates that the 8500S s AES input receiver chip has de tected a problem with t...

Страница 82: ...to analog input if signal lock is un available at the AES3 input 3 Adjust Analog Input Reference Level 9 dBu to 13 dBu VU or 1 to 21 dBu PPM in 0 5 dB steps The reference level VU and PPM Peak settin...

Страница 83: ...d Skip to step G F Calibrate using Program Skip this step if you are using Tone to calibrate the 8500S to your stan dard studio level see step D above a Verify EXT AGC is set to NO Refer to step 1 on...

Страница 84: ...rols for the digital section 6 Set response to an invalid or missing analog or digital input signal op tional Refer to step 3 on page 2 24 7 Defeat final clipper optional If you are using the 8500S to...

Страница 85: ...If your country enforces the ITU 412 multiplex power standard set ITU412 to ON See step 1 on page 2 22 D If you are using the 8500S s pilot reference output to drive a subcarrier gen erator set the 19...

Страница 86: ...f you will use the analog output to drive a stereo encoder PRE E pro vides the best performance because the stereo encoder does not have to restore the pre emphasis Its magnitude and phase response ma...

Страница 87: ...100 control AO 100 is equal to the RMS value of a sinewave whose peak value is equal to the maximum peak output of the analog output under program con ditions if the AO PRE E control is set to PRE E...

Страница 88: ...tput bandwidth is always strictly limited to 16 kHz and that the proc essed signal can be passed through a 32 kHz uncompressed STL without addition of overshoot However the internal sample rate conver...

Страница 89: ...when compared to white PDF dither Thus it is a good compromise between white PDF dither and extreme noise shaping If the source material has already been correctly dithered as is true for virtually al...

Страница 90: ...t the DO 100 control to make the modulation monitor read 100 modulation usually 75 kHz deviation See the notes in step 10 D on page 2 31 M If you selected HD in step I set the DO 100 control to the ma...

Страница 91: ...ibrated correctly with respect to 0 dBFS Note If both Digital Output 1 and Digital Output 2 are sourced from HD then Digital Output 2 becomes the Loudness Reference Output instead of Digital Output 1...

Страница 92: ...the EXT AGC to NO in step 1 on page 2 26 set the EXT AGC to YES 14 Select a processing preset See step 13 on page 2 21 Automation Using the 8500S s Internal Clock 1 If you have not already done so set...

Страница 93: ...the word DAILY and turn the knob so that is reads DATE instead b Use the Prev and Next buttons to move the cursor to the day month and year when the automation event will occur Set the desired values...

Страница 94: ...e a test mode was invoked mod reduction 1 mod reduction 2 exit mod reduction F When you have programmed an event to your satisfaction press the SAVE EVENT button You will return to the automation menu...

Страница 95: ...cept Security 3 All Access except Modify and Security 4 Recall Modify and Automation 5 Recall Presets and Program Automation 6 Recall Presets There is a default All Access passcode 1234 This allows PC...

Страница 96: ...de you just entered press the ESC button instead Then return to step B D The PERMISSIONS screen appears Turn the knob to choose the permission level for the passcode you just created If you wish to di...

Страница 97: ...e lockout delay time in hours minutes from 15 min utes to 8 hours or OFF This is the time delay between the last access to a local front panel control and when the front panel automatically locks it s...

Страница 98: ...necessary see To Create a Passcode on page 2 40 The RESTORE DEFAULTS button in the Restore Defaults screen restores all System Setup and Input Output parameters to their factory default settings It al...

Страница 99: ...Encoder Operation on page 3 10 Mono From Left Mono From Right or Mono From Sum switches the 8500S s stereo encoder off using the Left Right or Sum L R respectively as the program source MOD Reduction...

Страница 100: ...ing the remote control interface press the Es cape button to return to higher menu levels Networking and Remote Control Skip this step if you do not wish to connect to your 8500S remotely either for d...

Страница 101: ...address Use the knob to set the digit to the desired value Repeat until you have selected all the numbers in the gateway address assigned by your network administrator c Press the SAVE soft button to...

Страница 102: ...dems will often work OK You can use either an internal or an external modem with your PC A Connect the telephone line from the wall phone jack to the wall connection icon on the back of the modem mode...

Страница 103: ...set the controls listed above This connection uses the PPP protocol To set a different port number 1 From the main menu navigate to Setup NETWORK REMOTE NETWORK The current setting of the Terminal Por...

Страница 104: ...8500S s IP address into the Host Name or IP address field The IP address for this connection is the same as the IP address set in step 1 B on page 2 44 and is visible in the Setup NETWORK REMOTE SET I...

Страница 105: ...ripted with a cmd file and calls a txt file Via plink exe the cmd file calls putty exe which then makes the network connection between the com puter executing putty exe and 8500S and specifies the txt...

Страница 106: ...s Text that the user enters appears in MONOSPACED BOLD Responses that the 8500S transmits appear in monospaced normal The symbol means CR for received commands and CR LF for transmitted responses from...

Страница 107: ...he 8500S boots up The 30 minute timeout does not apply 3 To set the analog diversity delay Command Response TR X XXXXXXXXX PASSCODE valid passcode and argument DELAY X XXXXXXXXX invalid passcode no er...

Страница 108: ...valid passcode is entered the 8500S will ignore the command You can apply this command anytime after the 8500S boots up The 30 minute timeout does not apply In HD Radio installations this command is u...

Страница 109: ...re 1 active inactive remote contact closure 2 active inactive remote contact closure 3 active inactive remote contact closure 4 active inactive remote contact closure 5 active inactive remote contact...

Страница 110: ...y Synchronizing Optimod to a Network Time Server Skip this section if you do not wish to automatically synchronize your Optimod s in ternal clock to a network timeserver which may be part of your loca...

Страница 111: ...ee by navigating to Setup Next TIME DATE AND ID Next TIME SYNC Next You can specify the timeserver either from your Optimod s front panel or from its PC Remote software From the front panel you can on...

Страница 112: ...software If you are running Windows 2000 you cannot specify the timeserver from your computer However you can still set your Optimod s clock and off set A In Windows navigate to the CONTROL PANEL DATE...

Страница 113: ...fly summarizes the procedure for installing 8500S PC Remote soft ware on existing 8500S If required you will find more detailed instructions in the pdf file automatically installed on your computer by...

Страница 114: ...led a reverse cable This cable has DB9 female connectors at both ends for connecting the 8500S to the serial port on your computer If your computer has a DB25 connector you will need to obtain an adap...

Страница 115: ...to the PC Remote application on your desktop You have now installed all files necessary to use the PC Remote software If you are using a direct serial or a modem connection the next step is to instal...

Страница 116: ...on By carefully following the instructions in the Appendix you should have successfully installed the necessary Windows services and connected to your 8500S However if you experience any problems with...

Страница 117: ...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...

Страница 118: ...0S on page 5 9 1 Add and configure a Direct Connection for Windows 2000 A Create a New Windows 2000 Direct Connection a Launch 8500S PC Remote b Choose Connect New 8500S c Give your 8500S a name e g K...

Страница 119: ...on 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...

Страница 120: ...ck 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 63 This will usually be Com munications cable between tw...

Страница 121: ...lect 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 leav...

Страница 122: ...ting 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...

Страница 123: ...you wish to have 8500S 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...

Страница 124: ...2 68 INSTALLATION ORBAN MODEL k Type in a name for your Connection such as Connection to 8500S l Click Finish m n Click Yes B Edit your new Direct Connection properties a Click Settings...

Страница 125: ...e device you set up in step i on page 2 67 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...

Страница 126: ...ote application see To set up a new connection on page 3 81 choosing this connection from 8500S PC Remote automatically opens a Windows Direct Con nection to your 8500S You can connect by selecting th...

Страница 127: ...ns see page 2 62 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 be...

Страница 128: ...ems 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 wi...

Страница 129: ...ew 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...

Страница 130: ...letes 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 5 Set up the Network for...

Страница 131: ...MOD FM DIGITAL INSTALLATION 2 75 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 dial up connect...

Страница 132: ...odem 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 e...

Страница 133: ...Optimod Although you did not specifically install any thing that states PPP the PPP protocol has nev ertheless been installed 6 Configure the Direct Cable Connection adapter In this step you will cust...

Страница 134: ...als 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 win dow F Make sure your bps set tings...

Страница 135: ...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 P...

Страница 136: ...connection from 8500S PC Remote automatically opens a Windows Direct Con nection to your 8500S You can connect by selecting the desired con nection from the drop down list in the CONNECT menu You can...

Страница 137: ...he 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 8500S C Set the modem to AUT...

Страница 138: ...ems 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 Cl...

Страница 139: ...r the phone number of the modem connected to the 8500S 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...

Страница 140: ...TION ORBAN MODEL n Click the Next but ton o Type in a name for your Connection such as Connection to 8500S Modem p Click the Finish but ton q Click Yes D Edit your new Direct Connection properties a C...

Страница 141: ...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...

Страница 142: ...n page 3 81 choosing this connection from 8500S PC Remote automatically opens a Windows modem connection to your 8500S You can connect by selecting the desired con nection from the drop down list in t...

Страница 143: ...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 ope...

Страница 144: ...on 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...

Страница 145: ...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 8500S you are setting up l Click Next m n Ty...

Страница 146: ...LATION 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...

Страница 147: ...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 properti...

Страница 148: ...oftware version number of PC Remote must be the same as the version number of the software running within your 8500S If the software version of PC Remote is higher than the version running in your 850...

Страница 149: ...your 8500S s rebooting Your 8500S 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 8500S reboots Do not...

Страница 150: ...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 Prim...

Страница 151: ...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 Cont...

Страница 152: ...nity 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 reque...

Страница 153: ...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 Pr...

Страница 154: ...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...

Страница 155: ...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 p...

Страница 156: ...ou 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 Termina...

Страница 157: ...mmand 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...

Страница 158: ...ands 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...

Страница 159: ...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 st...

Страница 160: ...ou must reconnect to see the saved values SAVE INIT Use RDS parameters from System INIT TI Returns the current time TIME 20 15 36 DATE Jan 1 2015 RESPONSES Return Echo The command received was properl...

Страница 161: ...31 105 7 182 90 5 30 95 6 81 100 7 132 105 8 183 90 6 31 95 7 82 100 8 133 105 9 184 90 7 32 95 8 83 100 9 134 106 0 185 90 8 33 95 9 84 101 0 135 106 1 186 90 9 34 96 0 85 101 1 136 106 2 187 91 0 35...

Страница 162: ...us Music Social Affairs 20 Religious Talk Religion 21 Personality Phone In 22 Public Non Commercial Travel 23 College Leisure 24 Spanish Talk Jazz Music 25 Spanish Music Country Music 26 Hip Hop Natio...

Страница 163: ...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...

Страница 164: ......

Страница 165: ...e 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 Recal...

Страница 166: ...ter 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 Re...

Страница 167: ...aneously On the 8500S s display the HF Enhancer reads upside down compared to PC Remote This is to avoid constantly lighting the red segment at the bottom of the meter Red indicates overload when the...

Страница 168: ...nds around each Fourier component Considered from this perspective a hard clipper has a wideband gain control signal and thus introduces sidebands that are far removed in fre quency from their associa...

Страница 169: ...e stridency harshness or distortion OPTIMOD FM from Bach to Rock You can adjust OPTIMOD FM so that the output sounds As close as possible to the input at all times using the Two Band structure or open...

Страница 170: ...ng punch and clarity Another unfortunate trend is the tendency to put so much high frequency energy on the CDs that this energy cannot possibly survive the FM pre emphasis de emphasis process Although...

Страница 171: ...te conversion defeatable 30 Hz highpass filtering and defeatable phase rotation Stereo Enhancement Two Band Gated AGC with target zone window gating and silence gating Equalization including high freq...

Страница 172: ...nal through a delay line and adds this decorrelated sig nal to the unenhanced L R signal Gating circuitry similar to that used in the 222 style algorithm prevents over enhancement and undesired enhanc...

Страница 173: ...e signal conditions in the 8500S s clip ping system to do this A clipper embedded in the crossover protects bands 1 and 2 from transient over shoot This clipper has a shape control allowing you to var...

Страница 174: ...ve 38 150 Hz which reduces the occupied bandwidth of the FM modulated RF signal In SSB mode the subchannel modulator acts as a pure SSB generator for L R material in the frequency range of 150 Hz to 1...

Страница 175: ...T COMPOSITE screen Choose SSB to turn on SSB VSB operation or STEREO to turn on normal DSB operation It can also be controlled via the 8500S s GPI inputs and by PC Remote The look ahead overshoot cont...

Страница 176: ...has a 19 kHz notch filter to protect the pilot tone This filter does not compromise stereo separation in any way We still prefer to use the 8500S s main clipping system to do the vast majority of the...

Страница 177: ...linear structure keeps the musical spectrum co herent and natural The look ahead limiter prevents speech from being audibly clipped and prevents similar audible problems on instruments with rapidly de...

Страница 178: ...eshold until you find a good compromise between presence and high frequency codec artifacts We find the range from 6 0 to 6 0 dB to be useful Use a moderate Band 5 attack time 25 ms works well If nece...

Страница 179: ...flexibility to customize your station s sound Nevertheless as with any audio processing system proper adjust ment of these controls consists of balancing the trade offs between loudness den sity and a...

Страница 180: ...stereo enhancement and not lose the ability to use LESS MORE When you cre ate a user preset the 8500S will automatically save your EQ and stereo enhance ment settings along with your LESS MORE setting...

Страница 181: ...the different peak factors on voice and music if voice and music are peaked identically on a VU meter voice may cause up to 10 dB more peak gain reduction than does music A PPM will indicate relative...

Страница 182: ...ve a preset until you have saved it See To back up user presets system files and automation files onto your computer s hard drive on page 3 83 Note that if for some reason you wish to save an unmodifi...

Страница 183: ...or Five Band gain reduction Ultra Low Latency Five Band reduces the input to output delay of the processor to about 3 7 ms at the cost of a less favorable tradeoff between loudness bright ness and di...

Страница 184: ...LOUD FAT LOUD FAT 7 0 LOUD COMPRESSED 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 PUNCH...

Страница 185: ...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 O...

Страница 186: ...t purist classical processing is available from the CLASSICAL 2 BAND preset which is phase linear and which preserves the spectral balance of the original material as much as possible However if you n...

Страница 187: ...quency to achieve a bass sound similar to the classic five band Gregg Labs FM processors designed by Orban s Vice President of New Product Develop ment Greg Ogonowski Dynamically these presets produce...

Страница 188: ...peaks LOUD HOT LL is the low latency version of LOUD 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...

Страница 189: ...Release Time is slower and the Gate Thresh Gate Threshold is higher This recognizes that most sports programming has very low signal to noise ratio due to crowd noise and other on field sounds so the...

Страница 190: ...at is designed to prevent stridency with saxes and other horns This preset which is new to the 8500S is based on a custom 8400 preset that has been used successfully by a major market smooth jazz stat...

Страница 191: ...moderate slope 12 dB octave shelving boost achieves a bass boost that is more audible on smaller radios but which can sound boomier on high quality receivers The steep slope 18 dB octave shelving boos...

Страница 192: ...tend to use it very sparingly in the order of 1 dB boost to add a bit of extra bass warmth One formula for producing a very big bass sound on the air is to use a peaking Equalizer Controls Group Basic...

Страница 193: ...etermines the bandwidth of the equalization in octaves The range is 0 8 4 0 octaves If you are unfamiliar with using a parametric equalizer 1 octave is a good starting point The audible effect of the...

Страница 194: ...d a maximum of 4 dB of BRILLNCE boost and most people will prefer substantially less DJ BASS DJ Bass Boost control determines the amount of bass boost produced on some male voices In its default OFF p...

Страница 195: ...il 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 ste reo enhancer it can be adjusted...

Страница 196: ...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 en...

Страница 197: ...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...

Страница 198: ...ultiband 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 always present and consistent in l...

Страница 199: ...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 sw...

Страница 200: ...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...

Страница 201: ...z 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 c...

Страница 202: ...sover s input as passed through a delay equal to the group delay of the lowpass crossover filter The overall frequency response remains smooth as the two bands take different degrees of gain reduction...

Страница 203: ...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...

Страница 204: ...et the clipper threshold to the setting speci fied by the SPEECHBCTHR control The default setting is 0 dB which re sults in very little bass clipper action during speech This prevents audible speech d...

Страница 205: ...and overshoot compensator harder reducing the peak to average ratio and increasing the loudness on the air When the amount of clipping is increased the audible distortion caused by clipping also incre...

Страница 206: ...ully anti aliased whereas the composite limiter will inevitably introduce aliasing around 38 kHz upon demodulation in the receiver This is because it introduces spectrum in the stereo subchannel area...

Страница 207: ...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 ste...

Страница 208: ...which is a processing parameter like any other in a given preset Hence adjustments that affect the multiplex power controller appear in two independent places in the Optimod The MULTIPLEX POWER THRESH...

Страница 209: ...The LESS MORE control affects only the input drive and you can use it to set a nomi nal limiting level different from 0 dB or 5 dB The Protection presets have the same Intermediate and Advanced Modify...

Страница 210: ...modifying the CLASSICAL 2 BAND preset with the LESS MORE control turn it down to taste There are also two five band classical presets The CLASSICAL 5 BAND preset uses the five band structure with AGC...

Страница 211: ...rmats is 10 15 dB If less gain reduction is used loudness can be lost For classical formats operating with 0 10 dB of gain reduction with the gain riding AGC set to OFF maintains a sense of dynamic ra...

Страница 212: ...l produce the most natural sound achievable from the Two Band structures With faster 2B RELEASE control settings above 8 dB second the sound will change substantially with the amount of gain reduction...

Страница 213: ...aterial below 200 Hz matches that of the program material above 200 Hz Settings toward 100 wideband make the output sound most like the input Be cause setting the 2B BASS COUPLING control at 100 will...

Страница 214: ...controls is complicated and is best appreciated by listening and experimenting 2B Clipping is a compression threshold control that affects the bass and master bands equally It sets the drive level to...

Страница 215: ...increments between slow and fast Each setting makes a significant difference in the overall flavor and quality of the sound When the input is noisy you can sometimes reduce the noise by activating th...

Страница 216: ...ontrols affect both the analog and HD processing chains MB Drive control adjusts the signal level going into the multiband compressor and therefore determines the average amount of gain reduction in t...

Страница 217: ...w 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 Ba...

Страница 218: ...of dynamic range With these settings the Five Band structure provides gentle automatic equalization to keep the frequency balance consistent from record to record especially those recorded in differe...

Страница 219: ...limiter than like a compressor and the release time of the gain riding AGC is speeded up so that it provides compression and some increase of density We made these trade offs to prevent excessive bui...

Страница 220: ...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 remain...

Страница 221: ...dynamic noise reduction by setting these controls to a setting other than OFF The single ended noise reduction system combines a broadband downward ex pander with a program dependent low pass filter...

Страница 222: ...d at 1 kHz Set towards 100 fully coupled it reduces the amount of dynamic upper midrange boost preventing unnatural upper midrange boost in light pop and instrumental formats Band 4 5 Coupling control...

Страница 223: ...ssor outputs will change this tuning leaving the 8500S more vulnerable to unexpected audible distortion with certain program material Therefore you should make large changes in EQ with the bass and pa...

Страница 224: ...NG control operates These controls will affect the spectral balance of the processing above threshold but are also risky because they can significantly affect the amount of distortion produced by the...

Страница 225: ...ility of this artifact This control does not affect the HD processing chain Max Dist Ctrl Speech Max Dist Ctrl available in 8500S style presets only limit the maximum amount of final clipper drive red...

Страница 226: ...miters Because the limiter and com pressor characteristics interact you will usually get best audible results when you set these controls in the range of 70 to 100 Below 70 you will probably hear pump...

Страница 227: ...in which case MEDIUM bass clipping is unavailable and bass clipping will stay HARD Speech always sounds cleaner with MEDIUM bass clipping and the in creased bass punch supplied by HARD is irrelevant t...

Страница 228: ...miter This allows you to optimize the HD processing for the higher fidelity sound provided by the digital channel while giving you the flexibility to process the analog channel as you wish The stereo...

Страница 229: ...mpling the HD peak limiter s sidechain at 256 kHz This allows the 8500S to prevent clipping in a playback device s analog signal path by predicting and controlling the analog peak level following the...

Страница 230: ...lt in diversity delay independently to any output emit ting the FM processed signal This eliminates the need to use the delay in the iBiq uity exciter which allows you to apply the 8500S s composite o...

Страница 231: ...his versatile control allows you to selec tively apply diversity delay to each output as desired Diversity Delay Trim allows you to trim the analog FM delay in intervals of one sample of 64 kHz 15 6 s...

Страница 232: ...the incorrect setting of the HD POLARITY control should be clearly audible as a momentary loudness decrease during the crossfades The HD POLARITY control can make it easier to match the analog and HD...

Страница 233: ...us a good compromise between white PDF dither and extreme noise shaping In many cases the source material has already been correctly dithered so you will not need to add dither and can set this contro...

Страница 234: ...bration is only correct if the Digital Output 100 PEAK LEVEL control is set to 0 dBFS When the BS 1770 Safety Limiter is ON this calibration is correct regard less of the setting of the Digital Output...

Страница 235: ...you might want to do this is if the digital channel channel sounds excessively bright after you have optimized the 8500S s tuning for FM Of course you can also use the HD MB BAND MIX controls for this...

Страница 236: ...ization and multiband com pression limiting settings Yet you do not need to use excessive peak limiting which can only reduce quality HD De Ess allows you to mix an adjustable amount of the high frequ...

Страница 237: ...ut level is turned down after a tone calibration the MPX POWER LEVEL meter will read high compared to the actual on air MPX power The error will be equal to the amount that the 8500S s output level co...

Страница 238: ...tion If your country enforces the standard you should set the control to complement the amount of peak overshoot in the transmission system following your Optimod Set ting the control at 0 will correc...

Страница 239: ...the MPX offset is still applied before the peak limiters Turning it up for example from 12 to 9 dB increases both the amount of peak limiting and the amount of wideband gain reduction performed by the...

Страница 240: ...t have to dramatically reduce the level of following as yet un known program material in order to ensure that the MPX power limit is not ex ceeded over the 60 second measurement period in question Thi...

Страница 241: ...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...

Страница 242: ...ass 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 r...

Страница 243: ...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...

Страница 244: ...t panel Because only simplified adjustments are available from the 8500S front panel you must use PC Remote for custom preset development PC Remote also gives you the ability to backup user presets sy...

Страница 245: ...500S unit E If you are communicating with your 8500S through a network select the Ethernet radio button and enter the appropriate IP address subnet mask port and gateway data Note that these values mu...

Страница 246: ...ntrol setting A Choose PROCESSING PARAMETERS from the EDIT menu B Select menu tabs for Less More Stereo Enhancer and EQ to access Basic Mod ify controls All other menu tabs contain Full or Advanced Mo...

Страница 247: ...ation in plain text This allows the presets and files to be read with any text editor program and to be readily exchanged between Optimod users Save User Presets system files and automation files usin...

Страница 248: ...archive such a User Preset after restoring it the newly written archive file will now include the new controls with the default values unless you edit any of these values before you re archive the pr...

Страница 249: ...a user preset file type orb86suser orbu b Highlight all the user presets in the dialog window c Click the RESTORE button E To restore a system file a Set the FILES OF TYPE field to the System Setup f...

Страница 250: ...y one 8500S from within a group can be con nected to 8500S PC Remote at any one time Operation Using the Keyboard As far as possible PC Remote uses standard Windows conventions for navigation Navigate...

Страница 251: ...the Alias folder Archived user preset files are text files and can be opened in a text editor like Notepad if you want to examine their contents Alias folders and their associated backup subfolders ar...

Страница 252: ...e corresponding folders so they are under the folder corresponding to the highest version of 8500S PC Remote that is currently installed on your computer al though this is not required If your Alias f...

Страница 253: ...hat the 8500S 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 f...

Страница 254: ...g 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...

Страница 255: ...rd 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 je...

Страница 256: ...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...

Страница 257: ...ws 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 s...

Страница 258: ...function generator for sync tests Stanford Research Systems DS340 or equivalent The technician should be thoroughly familiar with the operation of this equipment This procedure is useful for detecting...

Страница 259: ...th a non approved supply may compromise your Optimod s compliance with the EMI and safety regulations in your country The 3 3V 1 2V and 2 5V supplies are locally regulated on the DSP and control board...

Страница 260: ...t controls as follows WORD LENGTH 20 f 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 def...

Страница 261: ...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 dB...

Страница 262: ...vel of the oscillator at higher frequencies to compensate for the pre emphasis boost in the 8500S As the frequency increases you will have to reduce the output level of the generator to follow the 75...

Страница 263: ...t the frequencies measured at the 8500S 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...

Страница 264: ...5 ppm and verify that the 8500S s output sample rate tracks it See the comments in step C above E Set the 8500S s PILOT SYNC control to DIG IN F Sequentially apply AES3 or AES11 signals having 32kHz 4...

Страница 265: ...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 subca...

Страница 266: ...modem cable See Networking and Remote Con trol starting on page 2 44 in particular step 4 on page 2 46 11 Return OPTIMOD FM to service A Restore your normal operating parameters using the notes you m...

Страница 267: ...xciter 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...

Страница 268: ...pplied to the output you are using to drive your transmitter See step 9 E on page 2 29 and step 10 B on page 2 30 Audible Distortion On Air Make sure that the problem can be observed on more than one...

Страница 269: ...tructure dynamic single ended noise reduction see MB Down Ex pander on page 3 57 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 8500...

Страница 270: ...essively If the 8500S 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 wi...

Страница 271: ...ery 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 8500S to perform these functi...

Страница 272: ...8500S 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 W...

Страница 273: ...and digital channels in your transmission path have reversed polarity with respect to each other and a phase cancellation is occurring in the radio during crossfades You can correct this with the HD P...

Страница 274: ...ions particularly with regard to minimizing overshoot and noise Security Passcode Lost When Unit is Locked Out Please see If You Have Forgotten Your Passcode on page 2 42 Connection Issues between the...

Страница 275: ...k that you have entered the correct phone number for connection C Check that you have entered the passcode correctly on the 8500S and the passcode has also been entered correctly on your PC D Ensure t...

Страница 276: ...he Networking tab E Set Type of dial up server I am calling to PPP Windows 95 98 NT4 2000 Internet F Select the Settings button and make sure all PPP settings are unchecked Then click OK G In Componen...

Страница 277: ...reset the Maximum BPS Speed by accessing PROPERTIES for the connection a Click START PROGRAMS ACCESSORIES COMMUNICATIONS NETWORK AND DIAL UP CONNECTIONS b Right click the name of your connection and a...

Страница 278: ...omatically O Click the Advanced button on the Internet Protocol TCP IP Window P In the Advanced TCP IP Settings select the General Tab make sure that no check boxes are checked Q Click OK to dismiss t...

Страница 279: ...Click OK to dismiss the Advanced TCP IP Settings window M On the Properties window for Optimod 8500S Modem click the Ad vanced tab N Click OK to dismiss the window whose name is your new connection O...

Страница 280: ...ndent 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 Therefo...

Страница 281: ...ec 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 reaso...

Страница 282: ...l 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 pre...

Страница 283: ...cessor 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 no...

Страница 284: ...ating 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 Co...

Страница 285: ...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 aut...

Страница 286: ...ss mode de emphasized 20 Hz 15 kHz 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 Ster...

Страница 287: ...r 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 D...

Страница 288: ...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 8500S...

Страница 289: ...ogram 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...

Страница 290: ...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 configure...

Страница 291: ...d 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...

Страница 292: ...onverter 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...

Страница 293: ...als 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...

Страница 294: ...ut 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 8500S s outputs The second SCA input can be ju...

Страница 295: ...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 8500S and can occur abnormally if th...

Страница 296: ...tomatic 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...

Страница 297: ...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 c...

Страница 298: ...f 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 part...

Страница 299: ...DER 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 SOC...

Страница 300: ...C68 C69 C70 C71 C72 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...

Страница 301: ...15 C1216 24711 000 01 IC LMV7219M5 CMPRTR IC505 24649 000 01 IC SN74AC11D AND GATE IC701 20129 100 01 RESISTOR 100 OHM 0805 R335 R336 R337 R338 NO STUFF 27451 009 01 HEADER STR DBL RW 60P PCMNT J1001...

Страница 302: ...C906 C907 C908 C909 C910 C911 C912 C913 C914 C915 C916 C917 C918 C919 C920 C921 C922 C923 C924 C925 C926 C927 C928 C929 C930 C931 C932 C933 C934 C935 C936 C937 C938 C939 C940 C941 C942 C943 C944 C945...

Страница 303: ...ALE INSERT RT ANGL J301 J302 J503 J504 24997 000 01 IC DAC AK4396VF VSOP AK43 IC306 24963 000 01 IC ADC AK5383 SOP IC 5383 IC208 24960 000 01 IC OPA2134UA IC205 IC206 IC207 IC303 IC304 IC305 IC403 IC4...

Страница 304: ...324 C325 C326 NO STUFF 21140 000 01 CAPACITOR NPO 470PF 1 0805 C315 C316 C317 C318 20511 310 01 TRMPT 10K 10 3 8TOP ADJ VR301 VR302 20237 472 01 RNET 8R ISO 5 RN801 RN802 20151 536 01 RESISTOR 0 1 5 3...

Страница 305: ...CONNECTOR HEADER 156CTR 2 PIN J1203 24760 000 01 IC QUAD CMOS SPST SWITCH IC203 IC204 22210 000 01 DIODE MBR530 SOD123 CR1001 CR1002 Composite SCA Daughterboard COMPOSITE SCA DAUGHTERBOARD PART DESCR...

Страница 306: ...V 47PF 5 SMT C9 C10 C11 C12 C13 C14 C15 C16 21325 610 01 CAPACITOR 10UF 10 TANTALUM 3528 C1 24416 000 01 IC OCTAL D FLPFLP AC574 IC1 IC2 24638 000 01 IC OCTAL BUS TRANS W 3 IC8 25112 001 01 LED RED GR...

Страница 307: ...onnects Schematic 1 of 12 6 35 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 Compos...

Страница 308: ......

Страница 309: ...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 310: ...6 28 TECHNICAL DATA ORBAN MODEL 8500S CONTROL BOARD PARTS LOCATOR...

Страница 311: ...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_A2...

Страница 312: ...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 MA...

Страница 313: ...D 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...

Страница 314: ...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...

Страница 315: ...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...

Страница 316: ...6 34 TECHNICAL DATA ORBAN MODEL 8500S 5700 8600S I O DSP BOARD PARTS LOCATOR DRAWING 32370 860 01...

Страница 317: ..._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...

Страница 318: ...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...

Страница 319: ...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...

Страница 320: ...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...

Страница 321: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 39 8600S I O BOARD COMPOSITE SCA DAUGHTERBOARD SHEET 4b of 12 62310 000 02 1...

Страница 322: ...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 RDY...

Страница 323: ..._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...

Страница 324: ...A1 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 S...

Страница 325: ...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 LCS...

Страница 326: ...ND 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...

Страница 327: ...served 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 576M...

Страница 328: ...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...

Страница 329: ...L 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...

Страница 330: ...6 48 TECHNICAL DATA ORBAN MODEL 8500S FRONT REAR FRONT PANEL PARTS LOCATOR DIAGRAM 32275 000 09...

Страница 331: ...TARY 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 D...

Страница 332: ...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 GRAP...

Страница 333: ...6 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 FY...

Страница 334: ...6 52 TECHNICAL DATA ORBAN MODEL 8500S...

Страница 335: ...OPTIMOD FM DIGITAL TECHNICAL DATA 6 53...

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