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Orban OPTIMOD-FM 5700i, Руководство по эксплуатации

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OPTIMOD-FM DIGITAL 

OPERATION   

3-39 

 

allows bass transients (like kick drums) to make square waves. The peak 
level of the fundamental component of a square wave is 2.1 dB 

higher

 

than the peak level of the flat top in the square wave. Therefore, this al-
lows you to get low bass that is actually higher than 100% modulation—
the harmonics produced by the clipping work to hold down the peak lev-
el. 

The square waves produced by this clipper are filtered through a 6 
dB/octave lowpass filter that is down 3 dB at 400 Hz. This greatly reduces 
the audibility of the higher clipper-generated harmonics. Nevertheless, 
the downside is that material with sustained bass (including speech) will 
sound substantially less clean than it will with the Medium or Soft set-
tings. 

Note that the 

H

ARD 

C

LIP 

S

HAPE

 control determines how squared-off the 

clipped bass waveforms become. (See 

Hard Clip Shape 

 on page 3-41.) 

•

 

LLH

ARD

 differs in two ways from the normal 

H

ARD

 mode of the bass clipper: 

•

 

LLH

ARD

 automatically defeats the compressor lookahead. This action 

is functionally equivalent to setting the 

L

OOKAHEAD

 control to 

O

UT

, 

except that it reduces input/output delay by 5 ms). 

•

 

LLH

ARD

 prevents the bass clipper from switching to 

M

EDIUM

 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 

M

EDIUM

 when speech is detected, provided 

that the Five-Band structure is active, 

L

ATENCY

 is 

H

IGH

, and the 

B

ASS 

C

LIP 

M

ODE

 is set to 

H

ARD

. (See “Lookahead” on page 3-63 for more about the 

speech/music detector.) If the bass clipper is set to 

LLH

ARD

, the 

speech/music detector will reset the clipper threshold to the setting speci-
fied by the 

S

PEECH

BCT

HR

 control. The default setting is “0 dB,” which re-

sults in very little bass clipper action during speech. This prevents audible 
speech distortion that this clipper might otherwise introduce. 

Switching the 

B

ASS

C

LIP

M

ODE

 to 

LLH

ARD

 (from any other mode) removes 

five milliseconds of delay from the signal path. Switching can cause audi-
ble clicks, pops, or thumps (due to waveform discontinuity) if it occurs 
during program material. If you have some presets with 

LLH

ARD

 bass clip-

per mode and some without, switching between these presets is likely to 
cause clicks unless you do it during silence. However, these clicks will nev-
er cause modulation to exceed 100%. 

One of the essential differences between the 

H

ARD

 and 

LLH

ARD

 bass clip-

per modes is that switching between Hard and Med does not change de-
lay and is therefore less likely to cause audible clicks. 

The 

H

ARD 

C

LIP 

S

HAPE

 control (in Advanced Control) offers further control 

over the sound of the 

H

ARD

 and 

LLH

ARD

 modes. See page 3-41. 

•

 

M

EDIUM

 uses more sophisticated signal processing than 

H

ARD

 to reduce distortion 

substantially. 

Содержание OPTIMOD-FM 5700i

Страница 1: ...Operating Manual OPTIMOD FM 5700i Digital Audio Processor Version 2 1 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 appears...

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: ...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 c...

Страница 7: ...Operating Manual OPTIMOD FM 5700i Digital Audio Processor Version 2 1 Software...

Страница 8: ...ut 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 accessible 1 15 Tra...

Страница 9: ...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 AUTOMATION USING THE 5700I S INTERNA...

Страница 10: ...O 2 97 Table 2 1 System I O RDS controls and defaults 2 98 Using Processing Presets 2 99 Emergency Alert System EAS Macros 2 100 Using the Terminal Server 2 100 Using Telnet to Control the Terminal S...

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: ...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 Troubleshooting 5 1 PROBLEMS AND POTENTIAL SOLUTIONS 5 1 RFI Hum Click...

Страница 13: ...ct or Modem Connection to the 5700i 5 9 OS SPECIFIC TROUBLESHOOTING ADVICE 5 10 Troubleshooting Windows 2000 Direct Connect 5 10 Troubleshooting Windows 2000 Modem Connect 5 11 Troubleshooting Windows...

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: ...ntrol 2 44 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: ...b 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 1...

Страница 18: ...22 Factory presets Table of 3 20 factory presets 1 8 factory service 5 15 Filter Pilot Protection 3 43 final clip drive 3 41 Final clipper Defeating 2 28 Firewall 2 60 81 Firmware updating 8500 2 92 f...

Страница 19: ...nitoring 2 31 headphones 1 25 HF enhancer 3 9 High Frequency Enhancer 3 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...

Страница 20: ...ok ahead limiter 3 13 65 Look ahead limiting Defined 3 4 lossy data reduction in studio 1 20 NICAM 1 18 used in STLs 17 loudness insufficient 5 7 insufficient due to poor peak control 5 1 Loudness adj...

Страница 21: ...3 null modem cable communicating through 2 61 null modem cable 2 58 O Out level control HD 3 68 output analog output level trim adjustment 4 8 analog connecting 2 6 analog specifications 6 2 composit...

Страница 22: ...bility 3 84 recall via GPI 2 43 restoring archived 3 84 presets backup 3 83 customizing 3 15 factory 1 8 protection 3 45 saving user 3 8 17 sharing between 5700s 3 85 user presets 1 8 Presets factory...

Страница 23: ...ate converter testing 4 10 saving user presets 3 8 17 SCA composite meter does not indicate 1 23 input specifications 6 4 inputs 1 11 interference from stereo 5 4 modulation reduction 2 23 SCA inputs...

Страница 24: ...n reduction 2 23 subcarrier input 2 8 subcarrier inputs 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...

Страница 25: ...2 60 81 W warranty 1 28 Warranty 1 28 warranty 6 6 whistle on air troubleshooting 5 4 Window Release 3 36 Window Size 3 35 Windows installing services 2 58 Windows 2000 adding direct serial connection...

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: ...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 sa...

Страница 29: ...sine 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 thi...

Страница 30: ...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...

Страница 31: ...re jumpered to provide a 19 kHz pilot reference output Both inputs have internal level trims to accommodate subcarrier generators with output levels as low as 220 mV The 5700i precisely controls the a...

Страница 32: ...station s sound and increasing loudness and definition remarkably without pro ducing unpleasant side effects The 5700i rides gain over an adjustable range of up to 25 dB compressing dy namic range and...

Страница 33: ...omation to permit broadcast system test and alignment or proof of performance tests OPTIMOD FM contains a built in line up tone generator facilitating quick and accurate level setting in any system OP...

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: ...3 Left Right Input Output The digital input and outputs conform to the professional AES3 standard They have sample rate converters to allow operation at 32 44 1 48 88 2 and 96 kHz sample frequency The...

Страница 36: ...n el 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 the an...

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 43 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 5700i 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: ...ectly from the 5700i 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 spuri...

Страница 43: ...y 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 lo...

Страница 44: ...ning a transmission system Any problems can be minimized by always driving a digital STL with the 5700i s AES3 digital output which will provide the most accurate interface to the STL The digital inpu...

Страница 45: ...will minimize any audible noise buildup caused by compression within the 5700i Some microwave links can be modified so that the deviation from linear phase is less than 10 from 20 Hz to 15 kHz and fre...

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 5700i 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: ...duce 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 corresponds...

Страница 50: ...dness level at the consumer s receiver is correct when the 5700i s digital radio processing chain is adjusted to make the dominant program material indicate 0 dB on the 5700i 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 5700i from input to FM outputs is about 18 ms when HARD o...

Страница 52: ...ing in two main ways 1 the 5700i UL presets still use the 5700i s stereo en hancement equalization section advanced technology AGC composite limiter and multiplex power controller and 2 the 5700i 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 5700i e g for servicing it is best to ship it in the original...

Страница 58: ...ctly to the 5700i 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 at...

Страница 59: ...the appropri ate REMOTE INTERFACE terminals The terminals can be connected together and then connected to ground at pin 13 to create a Remote Common A current limited 12VDC source is available on pin...

Страница 60: ...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 ftp...

Страница 61: ...ence An AES3id input on a BNC connector 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 pr...

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: ...t or output 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 cabl...

Страница 64: ...ng Encoder mode if a valid AES3 signal is not detected at its AES3id input your Optimod will automatically bypass the loop through While this will prevent dead air it means that ratings encoding will...

Страница 65: ...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 ex citer end This also eases thermal stresses on the output a...

Страница 66: ...Connect your subcarrier generator s to the 5700i s subcarrier input s with coaxial cable terminated with BNC connectors The subcarrier inputs have greater than 600 load impedance and are unbalanced T...

Страница 67: ...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 mode rejection and prevent ground loo...

Страница 68: ...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...

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: ...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 modu...

Страница 71: ...etup guides you through 5700i 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 Quic...

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...

Страница 73: ...he AGC function in the 5700i 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...

Страница 74: ...he 5700i s composite output when the 5700i 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 choo...

Страница 75: ...a J 17 pre emphasized output PRE J17 for 50 or 75 s pre emphasis cascaded with J 17 pre emphasis or FLAT which applies 50 or 75 s de emphasis after the processing Regardless of the setting of this con...

Страница 76: ...ation If you are using program material make sure that the program material is loud enough to produce peaks of frequent recurrence that hit the 5700i s peak limiting system thereby defining the maximu...

Страница 77: ...e the integrated loudness of digital radio transmissions to be equal to a target loudness set by the regulatory authority of the country in question The 5700iHD provides a BS 1770 Safety Limiter for t...

Страница 78: ...whose sound you prefer This preset may have a very different name than the name of your format This is OK You can easily modify a preset later with the 5700i s one knob LESS MORE feature Refer to Sect...

Страница 79: ...tone so that the transmitter produces 75 kHz deviation Finally play program material with lots of high frequency energy and bass transients like bright rock music with heavy kick drum and observe the...

Страница 80: ...he GPI terminal you wish to program c Hold down this button and turn the knob until you see MOD REDUCTION 1 or MOD REDUCTION 2 as desired To program clock based automation to activate modulation reduc...

Страница 81: ...r wiring instructions You can program the two tally outputs to indicate a number of different opera tional and fault conditions A Navigate to Setup NETWORK REMOTE REMOTE INTERFACE TALLY 1 B Program ta...

Страница 82: ...s below However for most users this material is only for reference because QUICK SETUP has enabled them to set up the 5700i cor rectly Analog and Digital I O Setup For the following adjustments use th...

Страница 83: ...Press the Recall button B Turn the knob until ROCK MEDIUM appears in the lower line of the display C Press the Recall Next button D Navigate to Setup I O CALIB ANLG IN CALIB AI REF VU or PPM depending...

Страница 84: ...nce control like those found in consumer audio prod ucts This control changes the gain of the right channel only Use this control if the right analog input to the 5700i is not at exactly the same leve...

Страница 85: ...Set the polarity of the analog FM processing optional In HD Radio installations this command is useful when switching the 5700i be tween transmitters if the transmitters exciters produce opposite FM...

Страница 86: ...u can use the 5700i s built in calibration tone oscillator To do this a Navigate to Setup TEST b Set the MODE to TONE c Set TONE FREQ to 100 HZ d Set TONE LVL to 91 This assumes you are using 9 pilot...

Страница 87: ...e without discomfort although they may need some time to become accustomed to it the low delay output will cause less bone conduction comb filtering However in most cases the low delay output will not...

Страница 88: ...very 1 increase in subcarrier injection For example if your subcarrier injection totals 20 you can set the total modulation to 110 82 5 kHz deviation This implies that you must set the 5700i s composi...

Страница 89: ...red output WORD LENGTH 14 16 18 20 or 24 in bits The largest valid word length in the 5700i is 24 bits The 5700i can also truncate its output word length to 20 18 16 or 14 bits The 5700i can add dithe...

Страница 90: ...ible audio level to the rat ings encoder but requires two ratings encoders if you are transmitting HD d Set the DO2 output SAMP RATE to 48 kHz e Set the DO2 output WORD LENGTH to 24 bit The Ratings En...

Страница 91: ...dness of your digital ra dio broadcast to be constrained according to the BS 1770 3 loudness measure ment algorithm execute the steps below If your country does not require this leave the BS 1770 Safe...

Страница 92: ...oudness to change when you toggle the BS 1770 SAFETY LIMITER control ON and OFF In our example the loudness will de crease by 3 dB when you set the BS 1770 SAFETY LIMITER to OFF B Navigate to the Setu...

Страница 93: ...t saving screen D Optional Press the STATION ID button to specify your station s identifier call sign or call letters a Use the knob to select characters Use the Prev and Next buttons to move the curs...

Страница 94: ...t no stop time The 5700i will indefinitely remain in the state specified by an existing automation event until its state is changed by another automation event or by another ac tion such as a user s i...

Страница 95: ...ther type D When you have located the event you want to remove press the DELETE EVENT button This action will immediately delete the event There is no are you sure warning message To abort the deletio...

Страница 96: ...ally it will erase these temporary User Preset files from your computer s hard disk If it does not exit normally these files will remain in encrypted form However the next time that PC Remote starts u...

Страница 97: ...ESCAPE buttons to abort deleting the passcode To Lock the Front Panel Immediately After you have adjusted the processor to maximize security you will often want to lock it immediately without waiting...

Страница 98: ...5700i functionality corresponding to the security level of your pass code If you have not set a passcode leave the Windows dialog box blank If You Have Forgotten Your Passcode You can reset factory de...

Страница 99: ...emphasis is applied to the digital input Input Digital J 17 selects the digital input and applies J 17 de emphasis to the digital input Bypass switches the Bypass Test Mode on the air Tone switches a...

Страница 100: ...age 3 67 DIGITAL OUT 1 DELAY OUT and DIGITAL OUT 2 DELAY OUT are also available FM Polarity Positive Makes positive the output polarity of the 5700i s FM analog channel processing In HD Radio installa...

Страница 101: ...ress the SET SUBNET MASK soft button b Use the Next and Prev keys to move the cursor in turn to each digit in the subnet mask Use the knob to set the digit to the desired value Repeat until you have s...

Страница 102: ...in turn to each character in the modem initialization string Use the knob to set the character to the desired value Repeat until you have set all the characters in the initialization string F Press th...

Страница 103: ...on and off for a specified output step 2 on page 2 51 trim the diversity delay step 3 on page 2 51 change the polarity of the analog processed output step 4 on page 2 52 Select the analog or digital i...

Страница 104: ...m en us library cc771275 WS 10 aspx Direct Control Using PuTTY A If you are using a serial connection establish a Direct Serial Connection be tween your computer and the Optimod See Appendix Setting U...

Страница 105: ...isks of Netcat many virus programs may detect this software as a threat If Netcat is detected as such configure virus software to allow and use the software with the normal security precautions The ou...

Страница 106: ...file 5700i_P1_Gregg cmd contains nc exe v n w 1 123 45 67 89 23 5700i_P1_Gregg txt The file 5700i_P1_Gregg txt contains RP GREGG PASSWORD disconnect The file 5700i_P2_GreggOpen cmd contains nc exe v...

Страница 107: ...on or off for a given output Command Response DE XXX PASSCODE valid passcode and argument DIVERSITY DELAY ON OFF for each output invalid passcode no error message is issued In the above table XXX ANAL...

Страница 108: ...invalid passcode is entered the 5700i will ignore the command You can apply this command anytime after the 5700i boots up The 30 minute timeout does not apply 4 To change the polarity of the analog FM...

Страница 109: ...You can apply this command anytime after the 5700i boots up The 30 minute timeout does not apply 6 To fetch real time operational status information from the Optimod This provides a real time status...

Страница 110: ...98 Free Disk Space 18978 9 To set the security timeout of the terminal connection Sets the delay minutes between when the last terminal command is received and when the Optimod disconnects automatical...

Страница 111: ...l Time UTC UTC is also known as GMT or Greenwich Mean Time The value can range between 12 and 12 hours in increments of 30 min utes If this value is set to 0 your Optimod s time will be the same as UT...

Страница 112: ...all make sure that port 123 is open If your connection failed the gateway address might not be set correctly on your Optimod The gateway address for the timeserver connection is the same gateway addre...

Страница 113: ...PC Remote will download your computer s currently specified timeserver into your Optimod PC Remote will adjust your Optimod s OFFSET setting to correspond to your computer s time zone setting PC Remo...

Страница 114: ...n You must install the appropriate communications services in Windows if they are not already installed before you can run 5700i Remote software You may therefore need to have access to the Windows in...

Страница 115: ...appli cation on your computer If it fails to do so navigate to Start Run on your com puter and type X setup where X is the drive letter of your CD drive Follow the prompts on your screen to install t...

Страница 116: ...r 5700i 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 5700i are on the same subnet then i...

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: ...0i on page 5 9 1 Add and configure a Direct Connection for Windows 2000 A Create a New Windows 2000 Direct Connection a Launch 5700i PC Remote b Choose Connect New 5700i c Give your 5700i 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 5700i 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 5700i 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 5700i PC Remote automatically opens a Windows Direct Con nection to your 5700i 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 di al up connec...

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 5700i PC Remote automatically opens a Windows Direct Con nection to your 5700i 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 5700i 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 5700i 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 5700i 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 5700i PC Remote automatically opens a Windows modem connection to your 5700i 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 5700i 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: ...ftware version number of PC Remote must be the same as the version number of the software running within your 5700i If the software version of PC Remote is higher than the version running in your 5700...

Страница 149: ...your 5700i s rebooting Your 5700i 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 5700i 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: ...lt 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 Defau...

Страница 155: ...he System RDS controls are active the 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 a...

Страница 156: ...ll override the RDS settings in the active system or pro cessing preset it will not overwrite the RDS setting for the I O or preset For exam ple if you are using a processing preset to generate RDS wi...

Страница 157: ...have checked the Optimod s TERMINAL ECHO box when you type a command the Optimod will return a status line relevant to the command to the Telnet client which will write it to the screen The returned...

Страница 158: ...ut in minutes Default is 4 minutes Note that the timeout reverts to the default each new connection if you change the timeout for one connection it is not retained for the next one RDS Terminal Comman...

Страница 159: ...or 2 digit number from PTY list describing the station broadcast format RDS RBDS are DIFFERENT PTY 9 for North American TOP 40 PTYN Program Type Name 8 character refined format defini tion RDS RBDS ar...

Страница 160: ...rom terminal HEAD 1 Default with Head TIME Time Data on RDS Determines if time and date are transmitted in the RDS data stream 0 No 1 Yes TIME 0 turn time transmission off RDS 57kHz RDS Sub carrier 0...

Страница 161: ...mission EASTIME EAS Returns the EAS text currently in the RDS encoder s mem ory EAS RESPONSES Return Echo The command received was properly formatted and was re ceived and executed by the encoder TATI...

Страница 162: ...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 96...

Страница 163: ...gious 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 Na...

Страница 164: ...drature 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 mo...

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 5700i 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: ...he signal conditions in the 5700i s clipping 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: ...e 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 17...

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 5700i 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 sep aration in any way We still prefer to use the 5700i s main clipping system to do the vast majority of th...

Страница 177: ...inear structure keeps the musical spectrum coher ent and natural The look ahead limiter prevents speech from being audibly clipped and prevents similar audible problems on instruments with rapidly dec...

Страница 178: ...hreshold 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 ne...

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 create a user preset the 5700i will automatically save your EQ and stereo enhancement set tings 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 slow er 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 5700i 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: ...lize it as necessary booming bass is tightened weak thin bass is brought up highs are always present and consistent in level The various combinations of AGC and compression offer great flexibility Lig...

Страница 199: ...band sidechain The AGC BASS COUPLING control sets the switching threshold For example if the AGC BASS COUPLING control is set to 4 dB and the master gain reduction is 10 dB the bass gain reduction ca...

Страница 200: ...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 enhancement modes offered in the 5700i s built...

Страница 201: ...d difference channels This control is only useful when you set the AGC MATRIX to SUM DIF By setting the threshold of the difference channel lower than the sum channel you can have the AGC automaticall...

Страница 202: ...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 frequenc...

Страница 203: ...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 an...

Страница 204: ...ed 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 distortion that this clipper might otherwise intr...

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: ...odifying 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 d...

Страница 211: ...ats 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 rang...

Страница 212: ...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: ...controls 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...

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: ...shold with respect to the signal driving the multiband compressor limiter which follows the AGC Meanwhile the AGC gating threshold remains set with respect to the AGC s input as it was in V1 x softwar...

Страница 221: ...system combines a broadband downward ex pander with a program dependent low pass filter These functions are achieved by causing extra gain reduction in the multiband compressor You can see the effect...

Страница 222: ...ge boost in light pop and instrumental formats Band 4 5 Coupling control extent to which the gain of band 5 6 2 kHz and above is determined by and follows the gain of band 4 The sum of the high freque...

Страница 223: ...ametric equalizers and the HF en hancer because these are located before the compressors The compres sors will therefore protect the system from unusual overloads caused the chosen equalization Use th...

Страница 224: ...usic and speech page 3 63 B1 B4 Attack Time Speech B1 B4 Attack controls set the speed with which the gain reduction in each band responds to level changes at the input to a given band s compressor fo...

Страница 225: ...ent material by the distortion controller Instead the final clipper is permitted to control some of the transient material to increase punch even though technically such clipping introduces distortion...

Страница 226: ...d have otherwise achieved If you hear pumping in a band and you still wish to adjust the limiter attack to a low setting you can sometimes ameliorate or eliminate the pumping by slowing down the com p...

Страница 227: ...of ADVANCED CONTROL lets you set the increment in dB by which the setting of the MB LIMIT THR control is reduced when speech is detected see Lookahead above This control is particularly useful in mini...

Страница 228: ...he FM adjustment screens To facilitate matching the FM analog and HD signals to minimize analog digital crossfades in HD receivers you can force the HD channel controls to track the FM channel control...

Страница 229: ...accuracy is 0 2 dB Thanks to true peak control sample rate conversion unless it removes high fre quency program energy or introduces group delay distortion cannot cause sample peaks to increase more t...

Страница 230: ...osite input In turn this allows you to use the 5700i s com posite limiter increasing the loudness of the analog channel When the diversity de lay is active the 5700i always maintains precisely the sam...

Страница 231: ...s 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 cri...

Страница 232: ...y in an HD Radio installation Temporarily set this control to cause a null sum the HD and FM channels and adjust the HD DELAY control to achieve the deepest null This works best if the HD and FM analo...

Страница 233: ...Noise Reduction feature the processing can sometimes attenuate input dither to a point where it is insufficient to dither the output correctly In this case you should add dither within the 5700i by tu...

Страница 234: ...ontrols Included with each preset in the HD Limiting page in PC Remote The only HD controls described in this section and shown in Table 3 12 have no FM analog coun terparts There are many other HD co...

Страница 235: ...ualizer Yet another reason to use HF rolloff in the digital channel channel is to reduce codec artifacts at the high frequencies the familiar watery sound When placed after the look ahead limiter the...

Страница 236: ...he HD processing only This control allows you to reduce the high frequency response of the HD processing channel in a program adaptive manner and is intended to reduce strong sibilance ess sounds that...

Страница 237: ...l of Peak Modulation Levels starting on page 1 13 for a discus sion of overshoots and how they force the average modulation to be reduced to prevent peak overmodulation of the FM carrier Because the 5...

Страница 238: ...700i 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 trans...

Страница 239: ...ontroller The multiplex power controller does not use the output of the 5700i s stereo en coder as its reference Instead it computes the multiplex power directly from the left and right audio signals...

Страница 240: ...s for the gating which set the level below which gating occurs as well as the release times above and below the threshold Higher numbered presets provide slower release times both above and below the...

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 pan el Because only simplified adjustments are available from the 5700i front panel you must use PC Remote for custom preset development PC Remote also gives you the ability to backup user presets s...

Страница 245: ...700i unit E If you are communicating with your 5700i 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: ...chive 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 prese...

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 5700i from within a group can be connected to 5700i 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: ...corresponding folders so they are under the folder corresponding to the highest version of 5700i PC Remote that is currently installed on your computer al though this is not required If your Alias fo...

Страница 253: ...hat the 5700i 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 5700i As the frequency increases you will have to reduce the output level of the generator to follow the 75...

Страница 263: ...at the frequencies measured at the 5700i 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 10...

Страница 264: ...ppm and verify that the 5700i s output sample rate tracks it See the comments in step C above E Set the 5700i s PILOT SYNC control to DIG IN F Sequentially apply an AES3 signal having 32kHz 44 1 kHz...

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 47 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 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...

Страница 269: ...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 5700i s anal...

Страница 270: ...essively If the 5700i 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 5700i to perform these func t...

Страница 272: ...00i 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 Whe...

Страница 273: ...ersed polarity with respect to each other and a phase cancellation is occurring in the radio during crossfades You can correct this with the HD POLARITY or FM POLARITY controls See page 3 68 HD Freque...

Страница 274: ...ck Setup On the Station ID screen Quick Setup 9 Use Escape in place of Cancel The Cancel button will not work Software Updates Close any running Windows programs before attempting to update Interrupte...

Страница 275: ...gs E Ensure that the external modem attached to your 5700i is set to AUTO ANSWER F Make sure that the only Allowed Network Protocol is TCP IP NetBUI and IPX SPX Compatible must not be checked You Cann...

Страница 276: ...s button The Internet Protocol TCP IP Properties window opens I Choose Obtain an IP address automatically and Obtain DNS server address automatically J Click the Advanced button on the Internet Protoc...

Страница 277: ...d port is not connected Make sure the INTERFACE TYPE on the 5700i is correct a On the 5700i go to Setup Network Remote Pc Connec b Set PC CONNECT to DIRECT c Try your connection again Troubleshooting...

Страница 278: ...whose name is your new connection T Click Cancel to dismiss the Connect nnnn dialog box U Restart your computer Although not strictly necessary this resets the serial port and reduces the likelihood...

Страница 279: ...he 5700i Troubleshooting Windows XP Modem Connect If you are having trouble establishing a connection check your New Con nection s properties to make sure they are set up correctly A Click Start Progr...

Страница 280: ...in an earlier stage However if an opamp s input is more positive than its in put yet the output of the IC is sitting at 14 volts the IC is almost certainly bad The same holds true if the above polari...

Страница 281: ...rtation charges to the factory which are usually quite nominal Shipping Instructions Use the original packing material if it is available If it is not use a sturdy double walled carton no smaller than...

Страница 282: ......

Страница 283: ...ocessor 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 n...

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: ...kHz 44 1 kHz 48 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 d...

Страница 286: ...osstalk 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 main channel refer...

Страница 287: ...5V 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 by...

Страница 288: ...wapping entire PC boards The section starts with an overview of the 5700i system identifying circuit sections and describing their purpose Then each user repairable section is treated in detail by fir...

Страница 289: ...ps 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...

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 5700i 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 5700i 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: ...6 26 TECHNICAL DATA ORBAN MODEL 5700i...

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 5700i 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 5700i 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 5700i 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 5700i...

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

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