Orban OPTIMOD-FM 5518 Operating Manual Download | Manualshive

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5518-FM DIGITAL

TECHNICAL DATA

6-21

I/O+DSP BOARD

PART #

DESCRIPTION

COMPONENT IDENTIFIER

21146.310.01

CAPACITOR 0.01uf 0805 10% 0805

C430, C601, C602, C603, C604,
C605, C606, C607, C608, C609,
C610, C611, C612, C613, C614,
C615, C616, C617, C618, C619,
C620, C621, C622, C623, C624,
C625, C626, C627, C628, C629,
C630, C631, C632, C633, C634,
C635, C636, C637, C638, C639,
C640, C641, C642, C643, C644,
C645, C646, C647, C648, C649,
C650, C651, C652, C653, C654,
C655, C656, C657, C658, C659,
C660, C661, C662, C663, C664,
C665, C666, C667, C668, C669,
C670, C671, C672, C701, C801,
C802, C803, C804, C1027, C1111,
C1112, C1113, C1114, C1115,
C1227, C1228, C5022

21144.000.01

CAPACITOR 5% 100V 47PF 1206

C200, C201, C202, C203, C204,
C205, C206

21143.000.01

CAPACITOR NPO 1500PF 1% 0805

C321, C322, C422 (C327, C328,
C329, C330 NO STUFF)

21141.000.01

CAPACITOR NPO 1000PF 1% 0805

C207, C208, C209, C210 (C323,
C324, C325, C326 NO STUFF)

21140.000.01

CAPACITOR NPO 470PF 1% 0805

C315, C316, C317, C318

20511.310.01

TRIM-POT 10K 10% 3/8TOP ADJ

VR301, VR302

20237.472.01

RESISTOR NETWORK 8R ISO 5%

RN801, RN802

20151.536.01

RESISTOR 0.1% 5.36K 0805

R219, R220, R221, R222

20151.365.01

RESISTOR 0.1% 3.65K 0805

R233, R234, R235, R236, R237,
R238, R239, R240

20132.100.01

RESISTOR 1/8W 1% 100K R0805

R1008, R1009, R1102, R1103,
R1104, R1106, R1107

20131.825.01

RESISTOR 1/8W 1% 82.5K 0805

R223, R224, R317, R318, R319,
R320, R419, R420, R421, R422,
R423, R424

20131.147.01 RESISTOR

1/8W

1% 14.7K 0805

R231, R232

20131.113.01

RESISTOR 1/8W 1% 11.3K 0805

R327, R328, R329, R330

20131.100.01

RESISTOR 10K 0805

R301, R302, R401, R402, R403,
R404, R405, R406, R511, R512,
R601, R602, R603, R604, R605,
R606, R607, R608, R609, R610,
R611, R612, R1006, R1205, R1206,
R1207, R1208, R1209, R1210,
R1211

20130.845.01

RESISTOR 1/8W 1% 8.45K 0805

R307, R308, R309, R310, R311,
R312, R313, R314, R315, R316

20130.562.01 RESISTOR

1/8W

1% 5.62K 0805

R229, R230

20130.348.01

RESISTOR 1/8W 1% 3.48K 0805

R321, R322, R323, R324, R325,
R326, R415, R416, R417, R418,
R1215

20130.162.01

RESISTOR 1/8W 1% 1.62K 0805

R241, R242, R243, R244, R1212

20130.100.01

RESISTOR 1.00K 1% 0805

R203, R204, R205, R206, R1003,
R1004, R1100, R1216

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Summary of Contents for OPTIMOD-FM 5518

Page 1: ...Operating Manual OPTIMOD FM 5518 FM Stereo Encoder Version 1 2 Software...

Page 2: ...to constitute a risk of shock This symbol wherever it appears alerts you to important operating and maintenance instructions in the accompa nying literature Read the manual In accordance to the WEEE w...

Page 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...

Page 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...

Page 5: ...crape the paint inside the slotted holes Packing When 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 ori...

Page 6: ...of 20 000 volts This is the spark or shock you may have felt when touching a doorknob or some other conductive surface A much smaller static discharge is likely to destroy one or more of the CMOS sem...

Page 7: ...Operating Manual OPTIMOD FM 5518 FM Stereo Encoder Version 1 2 Software...

Page 8: ...Location for the 5518 1 10 If the transmitter is not accessible 1 10 If the transmitter is accessible 1 10 STUDIO TRANSMITTER LINK 1 11 Transmission from Studio to Transmitter 1 11 Digital Links 1 11...

Page 9: ...e Passcode 2 33 If You Have Forgotten Your Passcode 2 33 ADMINISTERING THE 5518 THROUGH ITS SERIAL PORT OR ETHERNET 2 34 Connecting to the 5518 s Ethernet Port or Serial Port via a Terminal Program on...

Page 10: ...5518 PC REMOTE CONTROL SOFTWARE 3 8 To set up a new connection 3 9 To initiate communication 3 10 To modify a control setting 3 10 To recall a preset 3 11 To save a user preset you have created 3 11...

Page 11: ...Access the Internet After Making a Direct or Modem Connection to the 5518 5 6 OS SPECIFIC TROUBLESHOOTING ADVICE 5 6 Troubleshooting Windows 2000 Direct Connect 5 6 Troubleshooting Windows 2000 Modem...

Page 12: ...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...

Page 13: ...mance 4 6 automated control via PuTTY Plink 2 36 automation add event 2 28 delete event 2 30 edit event 2 30 automation 2 27 automation 3 13 B backing up presets 3 11 balance adjust 2 23 balanced inpu...

Page 14: ...cting through Win XP direct serial 2 56 connection to PC troubleshooting 5 5 connectors audio 2 5 input and output 2 5 contrast 3 1 control scripted 2 36 control knob 3 1 controls contrast 3 1 corrosi...

Page 15: ...ions 6 2 meters 3 2 SCA specifications 6 4 subcarrier 2 7 input level line up 1 14 input meters 1 15 input selector I O setup 2 23 input output board removing 4 3 inspection of package contents 2 1 in...

Page 16: ...NAB Broadcast and Audio System Test CD 4 6 Netcat automated control using 2 37 automation using 2 36 network timeserver 2 44 networking 2 42 NEXT button 3 1 NICAM 1 12 null modem cable communicating t...

Page 17: ...user 3 5 20 3 sharing between 5518s 3 13 PREVIOUS button 3 1 processing block diagram 6 51 Proof of Performance 1 4 Proof of Performance 3 7 PuTTY direct control using 2 35 PuTTY 2 36 Q quick setup 2...

Page 18: ...ons 6 1 spectrum analyzer 4 6 SSB mode 3 6 ST ENC NO LIMIT 2 16 Stanford Research Systems 4 6 station ID setting 2 15 stereo encoder testing 4 12 Stereo encoder SSB VSB Operation 3 6 stereo encoder mo...

Page 19: ...bleshooting 5 3 Windows installing services 2 48 Windows 2000 adding direct serial connection 2 52 56 72 Adding direct serial connection 2 78 Direct Connect 5 6 direct serial connection 2 51 modem con...

Page 20: ......

Page 21: ...owpass filtering overshoot limiting composite limiting diversity delay and an ITU412 multiplex power controller The 5518 must be driven usually via an STL by a full featured FM audio processor like Or...

Page 22: ...ch can be used to lock the stereo pilot tone to a high precision external reference like a GPS based frequency standard This facilitates using the 5518 in single frequency network applications Silence...

Page 23: ...to 50 s or 75 s The 5518 can apply J 17 deemphasis to the input signal The 5518 can delay its output by as much as 16 seconds This delay can be used as the diversity delay in HD Radio installations w...

Page 24: ...ted to an external modem or locally by connecting a Windows computer to the 5518 s serial port through the sup plied null modem cable The SNMP Simple Network Management Protocol features allow you to...

Page 25: ...ight 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 and 96 kHz sample frequency The lef...

Page 26: ...onnectors on the 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...

Page 27: ...The Remote Control Interface is a set of eight optically isolated GPI inputs on a DB 25 connector which can be activated by 5 12V DC They can control various func tions of the 5518 Recall any Factory...

Page 28: ...These computer interfaces support remote control and metering and allow downloading software upgrades Each 5518 package ships with 5518 PC Remote software an application for any IBM compatible PC runn...

Page 29: ...processor s signal is fed to such a 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 av...

Page 30: ...dio processing must be done at the studio and you must tolerate any damage that occurs later The 5518 is only applicable to this situation if a broadband 0 75 kHz phase linear link to the transmitter...

Page 31: ...rrier on a video microwave STL STLs are used in two fundamentally different ways with the 5518 They can either 1 pass your FM audio processor s peak controlled analog or digital left and right audio o...

Page 32: ...is the lowest commonly used sample rate that will not add overshoot If you are using an 8500 or 8600 with a 32 kHz STL you must activate the 5518 s left right overshoot limiter to remove the resulting...

Page 33: ...ocated at the studio and the 5518 will be located at the transmitter Lack of transparency in the path will cause overshoot Unless carefully designed dual microwave STLs can introduce non constant grou...

Page 34: ...ching devices in and out without recalibration For line up the studio engineer uses a calibration tone at a studio standard level commonly called line up level reference level or operating level Meter...

Page 35: ...igital word For metering the transmission engineer uses an oscilloscope absolute peak sensing meter calibrated peak sensing LED indicator or a modulation meter A modulation meter usually has two compo...

Page 36: ...left or right modulation will provide 100 modulation of the stereo composite signal including pilot tone but excluding any SCA subcarriers The pilot tone stereo system has an interleaving property wh...

Page 37: ...carefully re view your suggestions for improvements to either the product or the manual Please email us at custserv orban com LIMITED WARRANTY Valid only for products purchased and used in the United...

Page 38: ...t to submission of this War ranty Registration Card completed and signed by the dealer on the day of purchase and the sales slip Shipment of the defective item for repair under this warranty will be a...

Page 39: ...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 5518 e g for servicing it is best to ship it in the original car...

Page 40: ...directly to the 5518 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...

Page 41: ...OTE INTERFACE terminals The terminals can be connected together and then connected to ground at pin 17 to create a Remote Common A current limited 12VDC source is available on pin 25 If you use 48V co...

Page 42: ...network See Networking on page 2 42 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 f...

Page 43: ...Output useful for RDS RBDS subcar rier generators that require an external sync reference A Wordclock 10 MHz Sync Reference Input on a BNC connector allows you to lock the 5518 s internal clock gener...

Page 44: ...tandards of your organization In low RF fields like a studio site not co located with an RF transmitter connect the cable shield at 5518 input only it should not be connected at the source end In high...

Page 45: ...pair category 5 5e and 6 Ethernet cable will also work well if you do not require shielding In most cases the tight balance of Category 5 5e 6 cable makes shielding unnecessary The AES3id standard is...

Page 46: ...e is not constant at very low frequencies Therefore the transmission system will usually have more accurate amplitude and phase response and thus better stereo separation if the coax is driven by a ve...

Page 47: ...5518 s top cover according to the instructions in step 1 on page 4 2 The schematic showing J6 is on page 6 38 Connect your subcarrier generator s to the 5518 s subcarrier input s with coaxial cable te...

Page 48: ...Its subcarrier inputs are unbalanced but fre quency response is rolled off at low frequencies to reject hum All equipment circuit grounds must be connected to each other all equipment chassis grounds...

Page 49: ...ton while turning the knob However if there is only one parameter on a screen like choosing 50 or 75 s preemphasis you can change this with the knob alone You do not have to hold down a button Let the...

Page 50: ...specify the date at which Daylight Saving Time begins in your area B Press the Next button C Turn the knob to specify the date at which Daylight Saving Time begins in your area D Press the Next button...

Page 51: ...However if you cannot defeat the preemphasis in your stereo encoder or if you will use the analog output for monitoring set the output FLAT If you are sending the analog output of the 5518 through a...

Page 52: ...tput level Skip this step if you will not be using the composite output s A Observe the modulation produced by the 5518 s COMPOSITE OUTPUT 1 on a modulation monitor or modulation analyzer Turn the kno...

Page 53: ...add 0 5 modulation for every 1 increase in subcarrier injection For example if your subcarrier injection to tals 20 you can set the total modulation to 110 82 5 kHz deviation The 5518 has the ability...

Page 54: ...mpossible to set the AI and DI reference level controls correctly with test tones generated by the equipment driv ing the 5518 s input See step 29 on page 2 22 19 Recall the ST ENC NO LIM preset A Pre...

Page 55: ...to match the preemphasis 50 or 75 s of the input signal Even though the 5518 is not applying preemphasis its L R over shoot limiter needs to be aware of the input signal s preemphasis be cause the ov...

Page 56: ...eliminate 3 dB or less STL induced overshoot D Navigate to Setup I O CALIB ANLG IN CALIB AI REF Adjust the AI REF control to produce 100 composite modulation usually 75 kHz carrier deviation as indica...

Page 57: ...optional To operate successfully in SSB VSB mode you must activate the composite lim iter A Press the Modify button B If you do not see the MPX LIMIT MODE soft button press the Next button until it a...

Page 58: ...silent There are two silence detectors one for the analog input and one for the digital input The silence sense parameters apply to both simultaneously Both detectors are available to drive the 5518...

Page 59: ...n page 2 20 AES Input Silent Indicates that the level at either or both digital input channels is below the threshold set in step 26 on page 2 20 Currently this feature applies only to the stand alone...

Page 60: ...r The MPX power controller in the 5518 will then only eliminate power overshoots caused by the STL instead of control ling all MPX power itself To activate the 5518 MPX power controller A Navigate to...

Page 61: ...nly 0 1 dB steps Adjust the R CH BAL control to achieve correct left right channel balance This is not a balance control like those found in consumer audio prod ucts This control changes gain of the r...

Page 62: ...ence output to drive a subcarrier genera tor set the 19K REF control to the phase relationship between the 19 kHz ref erence and the 5518 s pilot tone required by your subcarrier generator In most cas...

Page 63: ...f diversity delay can be applied to this output To set the amount of delay refer to step G on page 2 24 C To set your on air modulation turn on the 100 Hz calibration tone and set it to 100 The peak l...

Page 64: ...SYNC The PILOT SYNC control determines the reference frequency source to which the 19 kHz pilot tone frequency is locked To do this the DSP clock is locked to this frequency The choices are DIG IN th...

Page 65: ...However particularly if you use the Noise Reduction feature the processing can sometimes attenuate input dither so that it is insufficient to dither the output correctly In this case you should add di...

Page 66: ...n or call letters a Use the knob to select characters Use the Prev and Next buttons to move the cursor b When you are finished press SAVE 2 Navigate to Setup Next Automation If the AUTOMATION button r...

Page 67: ...y another automation event or by another ac tion such as a user s interacting with the front panel or PC Remote soft ware E For all events a Press the SELECT EVENT button b Turn the knob to set the de...

Page 68: ...e 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 deletion press...

Page 69: ...e session If PC Remote exits normally 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...

Page 70: ...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...

Page 71: ...he 5518 functionality corresponding to the security level of your passcode If you have not set a passcode leave the Windows dialog box blank If You Have Forgotten Your Passcode You can reset factory d...

Page 72: ...uding auto mation systems to recall presets view status and set the controls listed above How ever you cannot restore defaults set security passcodes and change networking controls via Ethernet or the...

Page 73: ...w appears C Click the RAW button and set the Port to 23 or whatever terminal port you have set at the Optimod The Terminal Port is visible in the Optimod s SYSTEM SETUP NETWORK REMOTE NETWORK screen D...

Page 74: ...d as such configure virus software to allow and use the software with the normal security precautions The outbound configura tions shown here do not provide any security risks Inbound connections if u...

Page 75: ...ains nc exe v n w 1 123 45 67 89 23 5518_P1_JAZZ txt The file 5518_P1_JAZZ txt contains RP JAZZ PASSWORD disconnect The file 5518_P2_ROCK OPEN cmd contains nc exe v n w 1 123 45 67 89 23 5518_P2_ROCK...

Page 76: ...d passcode and argument DIVERSITY DELAY ON OFF for each output invalid passcode no error message is issued In the above table XXX ANALOG_ON ANALOG_OFF DIGITAL1_ON DIGITAL1_OFF COMPOSITE_ON COMPOSITE_O...

Page 77: ...e Note When the input is set to DIGITAL and no valid digital signal is present at the input the setting of the DI ANALOG FALLBACK control will determine whether the Optimod automatically switches to i...

Page 78: ...ODE Returns active processing preset name AP PASSCODE Returns active processing preset control settings LP PASSCODE Returns a list of all available processing presets 7 To fetch diagnostic information...

Page 79: ...on the air Tone switches the Tone Test Mode preset on the air Exit Test If a test preset is presently on the air EXIT TEST reverts to the previ ous processing preset Stereo Determines the operating mo...

Page 80: ...518 s RS 232 serial port either by modem or directly through a null modem ca ble 1 Prepare the 5518 for an Ethernet network connection Skip this step if you will not be using an Ethernet connection Se...

Page 81: ...rt Use the knob to set the digit to the desired value Repeat until you have selected all the numbers in the IP port assigned by your network administrator c Press the SAVE soft button to confirm your...

Page 82: ...e modem to AUTO ANSWER and turn it on For 3Com U S Robotics 56kbps fax modem EXT set dipswitches 3 5 and 8 in the down position to activate the AUTO ANSWER setting All other dipswitches should be set...

Page 83: ...to 0 your 5518 s time will be the same as UTC You can empirically adjust this value until the correct time for your location is displayed after you synchronize your 5518 to a timeserver 2 Choose a ti...

Page 84: ...ect gateway address you can often discover it by connecting a Windows computer to the same Ethernet cable that is ordinarily plugged into your 5518 Ascertain that the computer can connect to the Inter...

Page 85: ...ck F It is wise to disconnect from PC Remote and then to press the SYNC NOW but ton on your 5518 step 4 B on page 2 46 This is to test the ability of your 5518 to synchronize to the selected timeserve...

Page 86: ...need to have access to the Windows install disk s or have their im age copied onto your computer s hard drive before you attempt to use the 5518 PC Remote application In all cases regardless of wheth...

Page 87: ...install the PC Remote software automatically on your computer You might have obtained the automatic installer application from some other source than Orban s CD like Orban s ftp site or another compu...

Page 88: ...hat to cross subnets you must specify a gateway If the PC and 5518 are on the same subnet then it is unnec essary to specify a gateway If you are behind a firewall you must open the port you specified...

Page 89: ...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...

Page 90: ...he 5518 on page 5 6 1 Add and configure a Direct Connection for Windows 2000 A Create a New Windows 2000 Direct Connection a Launch 5518 PC Remote b Choose Connect New 5518 c Give your 5518 a name e g...

Page 91: ...n 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 s...

Page 92: ...lick 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 53 This will usually be Com munications cable between...

Page 93: ...ect the Networking tab j Make sure that PPP Windows 95 98 NT 4 2000 Internet appears in the Type of dial up server I am calling field k Make sure that Internet Protocol TCP IP is checked You may leave...

Page 94: ...hooting Windows 2000 Direct Connect on page 5 6 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...

Page 95: ...ou wish to have 5518 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 co...

Page 96: ...2 58 INSTALLATION ORBAN MODEL 5518 k Type in a name for your Connection such as Connection to 5518 l Click Finish m Click Yes B Edit your new Direct Connection properties a Click Settings...

Page 97: ...device you set up in step i on page 2 57 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...

Page 98: ...Remote application see To set up a new connection on page 3 9 choosing this connection from 5518 PC Remote automatically opens a Windows Direct Connec tion to your 5518 You can connect by selecting t...

Page 99: ...see page 2 52 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 belo...

Page 100: ...o dems tab and click Add You need ad ministrator s rights to do this If UAC comes up provide the relevant creden tials and pro ceed C The Add Hardware Wizard will appear a Tick Don t detect my modem I...

Page 101: ...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 P...

Page 102: ...mpletes the installation of the device driver for the device Communications cable between two computers This configuration is also commonly known as Di rect Cable Communications 2 Set up the Network f...

Page 103: ...18 FM DIGITAL INSTALLATION 2 65 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 connecti...

Page 104: ...modem device D When prompted to Type the information from your Internet Service Provider enter a dummy number to the phone number field Windows will not use it E Choose a name for your con nection an...

Page 105: ...timod Although you did not specifically install any thing that states PPP the PPP protocol has nev ertheless been installed 3 Configure the Direct Cable Connection adapter In this step you will custom...

Page 106: ...tials 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 tin...

Page 107: ...K 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 Pro...

Page 108: ...s connection from 5518 PC Remote automatically opens a Windows Direct Connec tion to your 5518 You can connect by selecting the desired con nection from the drop down list in the CONNECT menu You can...

Page 109: ...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 5518 C Set the modem to AUTO A...

Page 110: ...Mo dems are installed and it is attached to the correct port then click Prop erties 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...

Page 111: ...he phone number of the modem connected to the 5518 that you are set ting up j Click the Next button k Select either For all users or Only for myself The correct setting depends on how your network and...

Page 112: ...ON ORBAN MODEL 5518 m Click the Next but ton n Type in a name for your Connection such as Connection to 5518 Modem o Click the Finish but ton p Click Yes D Edit your new Direct Connection properties a...

Page 113: ...lect 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 con trol g Check Enable modem error control h C...

Page 114: ...tion on page 3 9 choosing this connection from 5518 PC Remote automatically opens a Windows modem connection to your 5518 You can connect by selecting the desired con nection from the drop down list i...

Page 115: ...con A list will branch off showing your available ports f Double click Communications Port COM1 or COM2 depending on how you set up your system The Communications Port Comx Properties dialog box opens...

Page 116: ...ntation f If your modem is available in the list available under The following Mo dems are installed and it is attached to the correct port then click Prop erties for that modem g Make sure the port s...

Page 117: ...f Select Serial Connection g Click the Add button h Select Dial up to private network i Click Next j Enter the phone number of the mo dem connected to the 5518 you are setting up k Click Next l Type...

Page 118: ...TION ORBAN MODEL 5518 n 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 Cl...

Page 119: ...Type of dial up server I am call ing 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 propert...

Page 120: ...software version number of PC Remote must be the same as the version number of the software running within your 5518 If the software version of PC Remote is higher than the version running in your 551...

Page 121: ...518 will continue to pass audio normally while the update is occur ring However the audio will be interrupted for approximately 3 seconds when your 5518 reboots Do not interrupt power to your 5518 or...

Page 122: ...een enabled select dis able and then reboot your Optimod F From the main menu navigate to Setup NETWORK REMOTE NETWORK SNMP ENABLE If the SNMP ENABLE soft button is not visible press the Next Prev but...

Page 123: ...SNMP Features Get Query Station Name System Diagnostics Orban walks through all of the get commands and dis plays their status Primary and Secondary Manager IP Primary and Secondary Manager Port Anal...

Page 124: ...INSTALLATION ORBAN MODEL 5518 Traps Alert Analog Input Silent Analog Input Active selected as input source AES Input Silent AES Error Digital Input Active The digital input is selected as the input so...

Page 125: ...inactive Control Knob is used to change the setting that is selected by the soft buttons To change a value you ordinarily have to hold down a soft button while you are turning the control knob Recall...

Page 126: ...dio It will show no gain reduction unless the MPX Power Controller is turned on Multiplex Power Level meter indicates multiplex power according to the ITU R BS 412 standard Its calibration will be cor...

Page 127: ...e of a factory preset the 5518 will suggest an alternate name If the name you have selected duplicates the name of an existing user pre set the 5518 warns you that you are about to overwrite that pres...

Page 128: ...tors the multiplex power according to ITU R 412 standards The power controller automatically reduces the average modulation to ensure compli ance It allows you to set the texture of the processing fre...

Page 129: ...rcing the multiplex power below the ITU requirement To compensate for this match the ITU412 9 control to the peak overshoot of the transmission system following the 5518 For example if RF peak deviati...

Page 130: ...ting case of this where the gains of the upper and lower sidebands are both 0 5 and sum to 1 This sum mation to 1 criterion is necessary to achieve compatibility with normal FM radios that use synchro...

Page 131: ...mend setting the MPX LIM DR control to 0 0 dB even if the preset has this control set higher than 0 dB when used in normal DSB mode This will minimize any audible dis tortion caused by additional peak...

Page 132: ...0 4000 5000 6300 8000 9500 10000 12500 13586 76 15000 LOG TONE LVL 91 0 121 1 TONE CHAN L R L R L R LEFT RIGHT PILOT ON ON OFF Table 3 1 Test Modes Using the 5518 PC Remote Control Software 5518 PC Re...

Page 133: ...og box opens C Enter an Alias name for your 5518 like KABC D Leave the password field blank to prompt the user to enter a password when initiating a connection Refer to Security and Passcode Programmi...

Page 134: ...les have been deleted or dam aged the PC Remote software will refresh them by downloading them from the 5518 If the PC Remote software needs to do this it can substantially increase the time required...

Page 135: ...der on your computer To archive a preset permanently you must use the Backup function See page 3 11 To save a user preset you have created A Select SAVE PRESET AS from the FILE menu to bring up the SA...

Page 136: ...ion If you wish to keep the existing archived pre set you can first use a file manager to move the existing user preset in the Backup folder to another folder and then repeat the backup opera tion To...

Page 137: ...to the Automation file type orb5518autom b Select the desired automation file in the dialog box c Click the RESTORE button G Click DONE to dismiss the RESTORE dialog box To share an archived User Pre...

Page 138: ...e standard Windows conventions Press ALT F4 on the keyboard or click the X on the upper right corner with the mouse Also please note the following behavior If you close the PC Remote connection from t...

Page 139: ...nstallations If you install a new version of the 5518 PC Remote software on your PC any Alias folders and backup subfolders created in an earlier software version still remain in their original locati...

Page 140: ...to use so that the registry en tries can be correctly updated You can do this two different ways Rename the Alias preferred Start the 5518 PC Remote executable you wish to use and rename your old Alia...

Page 141: ...s at fault The troubleshooting information in Section 5 will help you determine if the problem is with the 5518 or is somewhere else in the station s equipment 3 Periodically check for corrosion Parti...

Page 142: ...es that connect the display board assembly to the control board Avoid bending or breaking the pins Note the lead dress so you can re assemble the unit correctly B Detach the front panel from the unit...

Page 143: ...d 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 jew...

Page 144: ...o 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...

Page 145: ...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 sid...

Page 146: ...or 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 and diagnosing prob...

Page 147: ...regulations in your country The 3 3V 1 2V and 2 5V supplies are locally regulated on the DSP and control boards see Section 6 Measure the power supply s regulated voltages at the DVM and observe the...

Page 148: ...D 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 defeats all protection limit...

Page 149: ...ou are still in BYPASS mode and that the BYPASS GAIN 0 0 dB see step 3 F C Connect the oscillator to the Left Analog Input XLR connector D Inject the Analog Input XLR connector with a level of 10 dBu...

Page 150: ...vel of the oscillator at higher frequencies to compensate for the preemphasis boost in the 5518 As the frequency increases you will have to reduce the output level of the generator to follow the 75 s...

Page 151: ...Digital Output follow the values in the chart below within given tolerances Sample Rate Tolerance PPM Tolerance Hz 32 0 kHz 100 PPM 3 20 Hz 44 1 kHz 100 PPM 4 41 Hz 48 0 kHz 100 PPM 4 80 Hz 88 2 kHz...

Page 152: ...s PILOT SYNC control to DIG IN F Sequentially apply AES3 or AES11 signals having 32kHz 44 1 kHz 48 kHz 88 2 kHz and 96 kHz sample frequencies to the 5518 s AES3 Digital Input Using the oscilloscope t...

Page 153: ...Set the TONE CHAN to L R and the TONE FREQ to 5000 0 HZ Measure the 38 kHz subcarrier suppression on the stereo monitor It should not exceed 60 dB M Measure the Pilot Modulation on the stereo monitor...

Page 154: ...page 2 42 in particular step 4 on page 2 44 11 Return the 5518 to service A Restore your normal operating parameters using the notes you made in step 2 A on page 4 7 If you are using PC Remote and sa...

Page 155: ...he exciter s input is unbalanced A Jensen JT 123 BLCF transformer can almost al ways cure this problem see page 1 10 The AES3 inputs and output are transformer coupled and have very good resistance to...

Page 156: ...mercial monitors have this problem but most of these problem units can be modified to indicate peak levels accurately Orban uses the Belar Wizard series of DSP based monitors internally for testing be...

Page 157: ...ems or exciter problems Interference from stereo into SCA A properly operating 5518 generates an immaculately clean baseband with pro gram correlated noise below 80 dB above 57 kHz even when the compo...

Page 158: ...his will cause very shrill sound and poor peak modulation control due to the double preemphasis applied to the audio If the 5518 has been left in BYPASS mode it will apply preemphasis Dull Sound If th...

Page 159: ...or security passcode is re quired for upgrading regardless of whether you are using a Direct Modem or Ethernet connection MAC Address To see the MAC address of your 5518 s Ethernet hardware hold down...

Page 160: ...ault protocol and the default gateway defaults to the 5518 unit s IP address This means that all existing network connections point to the 5518 unit To correct this A In Start Settings Network and Dia...

Page 161: ...Click OK to dismiss the Advanced TCP IP Settings window O Click OK to dismiss the Internet Protocol TCP IP Properties window P Click OK to dismiss the window whose name is your new connection Q Click...

Page 162: ...n the Network Connections window right click 5518 Modem and choose Properties C The Properties window opens for 5518 Modem D Click the Properties button E Select the General tab and make sure that Con...

Page 163: ...bring up the Network Connections screen B In the Network Connections window right click 5518 Direct and choose Properties C The Properties window opens for 5518 Direct D Click the Networking tab E Set...

Page 164: ...lling to PPP Windows 95 98 NT4 2000 Internet E Select the Settings button Make sure all PPP settings are unchecked and then click OK F In This connection uses the following items uncheck all except fo...

Page 165: ...o drift excessively freeze spray may aid in diagnosing the prob lem Freeze spray is also invaluable in tracking down intermittent problems But use it sparingly because it can cause resistive short cir...

Page 166: ...test rating of 200 pounds 91 kg Place the chassis in a plastic bag or wrap it in plastic to protect the finish then pack it in the carton with at least 1 5 inches 4 cm of cushioning on all sides of th...

Page 167: ...output Frequency Response Bypass Mode Follows standard 50 s or 75 s preemphasis curve 0 10 dB 2 0 Hz 15 kHz Analog left right output and digital output can be user configured for flat or pre emphasize...

Page 168: ...djustable Signal to Noise 90 dB unweighted Bypass mode de emphasized 20 Hz 15 kHz bandwidth referenced to 100 modulation L R Crosstalk 70 dB 20 Hz 15 kHz Distortion 0 01 THD Bypass mode de emphasized...

Page 169: ...lock to 1x wordclock and 10 MHz squarewaves and sinewaves having a peak value of 0 5 V to 5 0 V Connector BNC female grounded to chassis non terminating to allow reference signals to be looped through...

Page 170: ...n DB 9 male connector EMI suppressed Uses PPP to pro vide for direct or modem connection to the 5518 PC Remote application Ethernet Connector Female RJ45 connector for 10 100 Mbps networks using CAT5...

Page 171: ...ty Two Years Parts and Service Subject to the limitations set forth in Orban s Standard Warranty Agreement Because engineering improvements are ongoing specifications are subject to change with out no...

Page 172: ...buttons and rotary encoder the rear panel RS 232 port Ethernet port and the remote contact closures These changes affect hardware function and or DSP processing The control circuits also send in form...

Page 173: ...onent Level Description After being current limited by resistors the GPI control signals are applied to two quad optoisolators U17 U19 and then to the control circuitry Transceiver U12 interfaces the...

Page 174: ...match it to the analog to digital A D converter The A D converts the analog input audio to digital audio The digi tal input receiver accepts AES3 format digital audio signals from the digital input co...

Page 175: ...acement using simple tools All other circuitry is surface mounted Replacement re quires surface mount rework tools and skills to prevent circuit board damage 2 Stereo Analog to Digital A D Converter L...

Page 176: ...t sample rate converter SRC The digital to analog D A converter converts the digital audio words generated by the DSP to analog audio The analog output stages scale and buffer the D A output signal to...

Page 177: ...4 kHz 5518 system sam ple rate to any of the standard 32 kHz 44 1 kHz 48 kHz 88 2 kHz and 96 kHz rates for the 5518 s Digital Out 1 The sample rate converter drives digital audio interface transmitter...

Page 178: ...omposite line driver amplifiers IC3 and IC4 are socketed in through hole packages to facilitate field replacement with simple tools All other compo nents are surface mounted and are not field replacea...

Page 179: ...ng the fuse Because of safety and EMI suppression requirements in the power supply there are no user serviceable parts in it In case of failure replace the entire supply with an Orban supplied replace...

Page 180: ...ialized by iBiquity Corporation where the digital carriers use a form of COFDM modulation and share the frequency alloca tion of the analog carriers Also known by its trademarked name of HD Radio IC i...

Page 181: ...ce mount de vices and inclusion of a part in this list does not imply that the part is field replaceable See the following assembly drawings for locations of components Obtaining Spare Parts Special o...

Page 182: ...1 2W 2010 R81 20233 472 01 RESISTOR NETWORK 4 7K CTS745C 8R BUS RN1 RN2 RN3 RN4 20237 472 01 RESISTOR NETWORK 8R ISO 5 RN5 21136 010 01 CAPACITOR SURFACE MOUNT 1206 10PF 5 C5 21139 000 01 CAPACITOR X7...

Page 183: ...X 3 J14 27421 010 01 CONNECTOR HDR DBL RW 23 2 X 5 J3 27421 016 01 CONNECTOR HDR STR 23 2 X 8 J6 NO STUFF 27451 005 01 CONNECTOR STR DBL ROW 26 PIN J11 27630 001 01 JUMPER PC MNT TEST POINT TP100 2803...

Page 184: ...1 1 0M 0805 R251 R252 R305 R306 R425 R426 R513 24795 000 01 IC XC95144XL 10TQG144C IC1103 27468 006 01 CONNECTOR 6P MOLEX PCB MOUNT J401 24843 000 01 IC CD74HC4046AM 16 SOIC IC1104 29552 000 01 INDUC...

Page 185: ...C237 C238 C239 C240 C241 C242 C243 C244 C304 C305 C306 C307 C308 C309 C310 C311 C312 C313 C314 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 C501 C503 C505 C507 C901 C902...

Page 186: ...02 J501 27053 003 01 CONNECTOR MALE INSERT RIGHT ANGLE J301 J302 J503 J504 NO STUFF 24997 000 01 IC DAC AK4393VSP VSOP IC306 24963 000 01 IC ADC AK5383 SOP IC 5383 IC208 24960 000 01 IC OPA2134UA IC20...

Page 187: ...10 01 TRIM POT 10K 10 3 8TOP ADJ VR301 VR302 20237 472 01 RESISTOR NETWORK 8R ISO 5 RN801 RN802 20151 536 01 RESISTOR 0 1 5 36K 0805 R219 R220 R221 R222 20151 365 01 RESISTOR 0 1 3 65K 0805 R233 R234...

Page 188: ...UCTOR 3300UH 10 RL 1160 33 L9 L10 27758 006 01 CONNECTOR 6P MOLEX RT ANGLE J5 27421 004 01 CONNECTOR HEADER DOUBLE ROW 4P 2X2 J6 J7 J8 29508 210 01 FILTER EMI SUPPRESSOR 100V 10 L1 L2 L3 L4 27056 000...

Page 189: ...R27 R28 20226 000 01 RESISTOR NETWORK DIL 2 100 RP1 RP2 21131 410 01 CAPACITOR SURFACE MOUNT 1206 1UF 50V 20 C2 C3 C4 C5 C6 C7 C8 21144 000 01 CAPACITOR 5 100V 47PF 1206 C9 C10 C11 C12 C13 C14 NO STU...

Page 190: ...4 of 5 6 32 Power and Ground Schematic 5 of 5 6 33 I O DSP Board Analog Input output AES3 Input output DSP Chips Local regulators Contains Parts Locator Drawing 6 34 Interconnects Schematic 1 of 12 6...

Page 191: ...5518 FM DIGITAL TECHNICAL DATA 6 25...

Page 192: ......

Page 193: ...5518 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...

Page 194: ...6 28 TECHNICAL DATA ORBAN MODEL 5518 CONTROL BOARD PARTS LOCATOR...

Page 195: ...PA21 GPA22 GPA23 GP_RESET GP_AEN GP_MEMWR N GP_MEMRD N 3 3V 1 2 3 4 5 6 7 8 10 9 RN3 RNET4 7K PIO26 GPMEMCS16 N PIO25 GPIOCS16 N PIO13 GPIRQ10 PIO23 GPIRQ0 PIO22 GPIRQ1 PIO15 GPIRQ8 PIO21 GPIRQ2 DACK0...

Page 196: ...MECC5 MECC6 3 3V 3 3V MA0 MA1 MA2 MA3 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...

Page 197: ...PCI_AD30 PCI_AD31 PCI_AD 0 31 PCI_AD24 PCI_CBE0 N PCI_CBE1 N PCI_CBE2 N PCI_CBE3 N PCI_RESET N PCI_DEVSEL N PCI_STOP N PCI_IRDY N PCI_TRDY N PCI_FRAME N PCI_PERR N PCI_SERR N PCI_PARITY PCI_REQ0 N PC...

Page 198: ...11 U19C PS2506 4 7 8 10 9 U19D PS2506 4 1 2 3 4 J8 HDR 2X2 KEY KEY TO POW ER ON LED DB25 M NC AF25 NC AF23 NC AF1 NC AE25 NC AE24 NC AE1 NC AD25 NC AD26 NC AD1 NC AD2 NC AC25 NC AC3 NC AA26 NC AB4 NC...

Page 199: ...UF C177 0 1UF C179 0 1UF C182 0 1UF R34 10 OHM C126 0 01UF C127 0 01UF C133 0 01UF C134 0 01UF C156 0 01UF C158 0 01UF C160 0 01UF C162 0 01UF C180 0 01UF C14 1 0UF C17 1 0UF C125 1 0UF C132 1 0UF C15...

Page 200: ...6 34 TECHNICAL DATA ORBAN MODEL 5518 5500 I O BOARD Parts Locator Drawing 32370 000 02 1 sheet 1 of 1...

Page 201: ...04_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...

Page 202: ...0 1 R219 5 36K 0 1 R221 5 36K 0 1 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 OE 1 CLK 11 VCC 20 GND 10 IC209 74HCT374PW D1 2 D2...

Page 203: ...L308 1 2 3 1000PF L304 FILTER 1 2 3 1000PF L306 FILTER CR302 TRANSZORB CR304 TRANSZORB R332 R334 L310 C328 C330 C324 C326 R336 R338 COMPONENT REF DESIGNATOR 63xx and 5500 VALUE 93xx VALUE 3 9uH 1008...

Page 204: ...1 IC4 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 IC403C OPA2134UA 15V 15V AGND5 4 8 IC...

Page 205: ...5518 FM DIGITAL TECHNICAL DATA 6 39 5500 I O BOARD Composite SCA Daughter Board 62310 000 02 1 sheet 4b...

Page 206: ...0 SDOUTB 49 RATIOB 32 RDYB 31 IC503B IC SRC4184I PAG DGND DGND REF_M CLK REF_MCLK DOUT1_DATA SHT11 DOUT1_DATA OUT_FCLK OUT_BCLK REF_M CLK TX_BCLK_1 SHT11 TX_BCLK_1 TX_M CLK_1 SHT11 TX_MCLK_1 TX_LRCK_1...

Page 207: ...SDO4_0 PC7_0 86 SDI2_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 SD...

Page 208: ...8 MODA1 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...

Page 209: ...11 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...

Page 210: ..._GND 82 CORE_VDD 95 CORE_GND 96 IO_VDD 107 IO_GND 108 CORE_VDD 109 CORE_GND 110 CORE_VDD 130 CORE_GND 131 IO_VDD 132 IO_GND 133 CORE_GND 47 IO_VDD 48 IO_GND 49 IO_GND 59 CORE_VDD 60 CORE_GND 61 CORE_V...

Page 211: ...rved 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 576MHZ...

Page 212: ...0K R1103 100 0K R1104 100 0K 33 8688M HZ 16 384M HZ 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...

Page 213: ...OL PCA 3 3V R1212 1 62K L1201 1 5uH L1202 1 5uH M7 M8 M9 M10 M11 M12 1 2 J1203 HDR 2 SS TRCK 1 PVIN 6 PVIN 7 SW 8 SW 9 PGND 10 PGND 11 EN 12 VCC 13 AVIN 14 AGND 15 SYNC 16 FB 2 PGOOD 3 COMP 4 NC 5 G N...

Page 214: ...6 48 TECHNICAL DATA ORBAN MODEL 5518 FRONT VIEW REAR VIEW FRONT PANEL PARTS LOCATOR DIAGRAM...

Page 215: ...Y 2 R Y 3 R Y 4 R Y 5 1 2 YEL CR8A 3 4 YEL CR8B 5 6 YEL CR8C 7 8 YEL CR8D 9 10 YEL CR8E 11 12 YEL CR8F 13 14 YEL CR8G 15 16 YEL CR8H 17 18 YEL CR8I 19 20 RED CR8J 1 2 GRN CR9A 3 4 GRN CR9B 5 6 GRN CR9...

Page 216: ...P2 8x2 POSTS F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F25 F26 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 P3 8x2 POSTS FY0 FY1 FY2 FY3 FY4 FY5 FY6 FY7...

Page 217: ...5518 FM DIGITAL TECHNICAL DATA 6 51...

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