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Technalogix Ltd

TAUD-1000 Transmitter

VIII-2

Heating and Cooling Requirements

The environment’s temperature will contribute greatly to the length of the power amplifier’s life.
Technalogix recommends that the building’s filtered air intake must have capacity for all air-flow in
the building plus an additional 20%. Keep the intake below the roofline to avoid intake of solar
heated air. Please ensure that the intake and exhaust areas are on the same side of the building to
avoid pressure differentials during windy conditions. Also, do not position intake near exhaust’s
preheated air. If air conditioning is required to cool the shelter, discuss the situation with a qualified
HVAC technician. Under average conditions, 12,000 BTUs will cool approximately 500 square feet
to a comfortable level.

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Summary of Contents for TAUD-100

Page 1: ...TAUD 1000 BROADCAST TRANSMITTER OPERATING MANUAL ...

Page 2: ...understand that a capable and confident user will get the most out of our product and we have made every attempt to educate readers of all technical levels If there is something that is not clear or you require further information please do not hesitate to contact us and we ll be glad to help out Technalogix Ltd 4 8021 Edgar Industrial Place Red Deer Alberta Canada T4P 3R3 Phone 403 347 5400 Fax 4...

Page 3: ...ment DOCUMENTATION Read retain and follow instructions before operating the equipment There is a lot of useful information in the manual and besides we spent a lot of time writing it ENVIRONMENT To reduce the risk of fire or electric shock do not expose this equipment to rain moisture or rye and sodas at the company Christmas party Refer all servicing to qualified service personnel SERVICING Do no...

Page 4: ...the flesh and frequently places the victim in a state of shock accompanied by respiratory paralysis Respiratory paralysis can cause death by suffocation within seconds It is imperative that the approved methods of artificial respiration are initiated immediately and continue until the victim s breathing is normal A muscular spasm of unconsciousness may render the victim unable to break free of the...

Page 5: ...se all of the RF transistors used in the individual amplifier pallets are fabricated with LDMOS Laterally Diffused Metal Oxide Semiconductor technology Nice and linear yes but they do not like to make any RF power when their supply voltages are not within a specific range When you first turn your power amplifier on or off the DC power supply s output voltage may take a while to stable out to a saf...

Page 6: ... in connection with the equipment or its use thereof Technalogix does not assume responsibility for injury or damage resulting from the practices of untrained or unqualified personnel in the handling of this equipment Technalogix Ltd warranty does not include misuse neglect or accident incorrect wiring and or improper installation unauthorized repairs modifications or use in violation of instructi...

Page 7: ...site www technalogix ca for the RMA form Service and fill it out Either fax it to us or email to us Package equipment carefully for prepaid shipment to Technalogix Include a written description of the problem experienced a copy of the original invoice establishing warranty status and the RMA Technalogix reserves the right to make revisions in current production of the equipment and assumes no obli...

Page 8: ...stance to which the waiver is directed Ordering Information All orders must be in writing and or accompanied by a PO 50 down payment is required with all orders No orders are considered an order until the down payment has been paid Order Confirmation A purchase order is not binding on Seller until Buyer has received Seller s order confirmation or acknowledgement Pricing Policy Prices for products ...

Page 9: ...k terminated in accordance with generally accepted accounting principle together with cancellation charges Orders for standard product may be changed by Buyer with no penalty to the Buyer provided that Buyer provides Technalogix notification at least 30 days prior to the scheduled ship date Order changes received within 30 days of the scheduled ship date may be subject to an order change charge a ...

Page 10: ...lay in delivery or failure to deliver which is due to any cause beyond Seller s control including without limitation acts of nature unavailability of supplies or sources of energy riots wars fires floods epidemics lockouts strikes and slowdowns delays in delivery by supplies or acts or omissions of the Buyer The Buyer shall be liable for stage charges including but not limited to all third party c...

Page 11: ...nitor system parameters Microcontroller based monitoring and control ensures amplifier will never be overdriven and high VSWR will not damage amplifier All aluminium enclosure maintains power amplifier s light weight Simple design using commonly available parts ensures reliable operation Ethernet SNMP and Remote Port system monitoring ...

Page 12: ...or is calibrated and tested to the channel requested and is not field tuneable The TAUD 1000 power amplifier is a modular solid state 1000 watt broadcast amplifier utilizing readily available RF components wherever possible thus enhancing the serviceability of the equipment The TAUD 1000 is comprised of two TAUD 500 500 watt RMS power amplifiers that get combined to create the 1 000 watts RMS 8VSB...

Page 13: ...TAUD 500 AMPLIFIER TAUD 500 AMPLIFIER Modulator or Processor External power supply COMBINER FILTER RF Out TAUD 1000 BLOCK DIAGRAM Date November 17 2008 Page 1 of 1 Rev ID ...

Page 14: ... driver amplifier before the signal gets split into 3 signals for final amplification using a 3 way microstrip power divider The final amplification stage is comprised of 3 BLF878 final amplifiers The outputs of the 3 final amplifier pallets are combined with a 3 way microstrip combiner and pass through an isolator as illustrated in the following TAUD 500 block diagram After the isolator the signa...

Page 15: ...PLIFIER PALLET A 0 05dB typical A 0 5dB typical To Wattmeter and Antenna UHFTV 50 Driver Pallet 3 WAY SPLIITER 3 WAY COMBINER RF INPUT RF OUT Directional C TERMINATION 50 OHM ATTENUATION TAUD 500 ENCLOSURE Date NOVEMBER 29 2010 Page 1 of 1 Rev ID ...

Page 16: ...00 amplifiers 500 watts RMS get combined by a 2 way 90 degree combiner via phased cables The amplified signals are filtered with a bandpass filter and monitored again with another directional coupler before heading out to the customers inline 8VSB reading wattmeter and then to an antenna for broadcast as depicted in the following filter coupler block diagram ...

Page 17: ...A 0 6dB to 1 0dB A 0 05dB A 0 45dB TO WATTMETER AND ANTENNA COMBINER DIRECTIONAL COUPLER FILTER RF OUT PA2 OUT PA1 OUT TAUD 1000 COMBINER FILTER ENCLOSURE Date November 17 2008 Page 1 of 1 Rev ID ...

Page 18: ...being kept on file at Technalogix Physical Characteristics Operating Temperature 0 50 C Dimensions TAUD 500 Power Amplifier each W 19 flange 17 encl D 25 H 10 6U each Combiner Filter W 19 flange 17 encl D 25 H 10 6U Power Supply W 19 flange 17 encl D 25 H 5 3U TM600 8VSB Modulator if supplied W 19 flange 17 encl D 16 H 3 2U ...

Page 19: ... This resistance is 0 01 ohms providing a 10mV per ampere ratio The BLF878 pallets used in the final amplification stage use LDMOS Laterally Diffused Metal Oxide Semiconductor technology LDMOS technology offers higher gain efficiency and linearity over standard MOSFET and Bipolar devices and enhances ruggedness and reliability LDMOS transistors have the added advantage of not having BEO Beryllium ...

Page 20: ...ted Wilkinson combiner design Due to its electrical and mechanical symmetry the Wilkinson design s performance over moderate bandwidths is superior to other types Directional Coupler The Technalogix dual directional coupler provide DC voltages proportional to forward and reflected RF power monitoring These analog voltages are converted for processing using analog to digital converters and provide ...

Page 21: ... harmonic output products and passes the channel RF output The cavity resonator uses aperture coupling and is a linear resonator design Typical insertion loss is 0 4 dB to 0 6 dB depending on channel frequency The filter is DC grounded on both the input and output for additional lightning protection ...

Page 22: ...well RSP 3000 48 The switching power supply is fully protected against short circuit and output overload Short circuit protection is a cycling type power limit The internal AC fuse is designed to blow only on a catastrophic failure in the unit the fuse does not blow on overload or short circuit The thermal shutdown automatically recovers when the power supply chassis cools down AC 220Vac is fed in...

Page 23: ...ecially mentioned are measured at 230VAC input rated load and 25 of ambient temperature 2 Ripple noise are measured at 20MHz of bandwidth by using a 12 twisted pair wire terminated with a 0 1uf 47uf parallel capacitor 3 Tolerance includes set up tolerance line regulation and load regulation 4 The power supply is considered a component which will be installed into a final equipment The final equipm...

Page 24: ...tput Voltage External Control S Remote Sensing PS Reference Voltage Terminal Assignment Assignment RC RCG PV PS Mating Housing Terminal or equivalent or equivalent 8 6 5 7 S S CS Current Share Control Pin No Assignment CN1 CN2 HRS DF11 8DP 2DS or equivalent HRS DF11 8DS HRS DF11 SC Pin No Pin No Pin No Pin No 3 6 9 2 5 8 P OK GND Power OK Ground RCG Remote ON OFF Ground AUX Auxiliary Output P OK P...

Page 25: ...od SW Logic Output on SW Open SW Open SW Open Fig 1 2 A Fig 1 2 B Fig 1 2 C Output off SW Close SW Close SW Close AUX 12V typ AUXG 1K RCG RC SW 12V 1K RC 12V typ RCG AUXG AUX A Using external voltage source B Using internal 12V auxiliary output SW 1K RC 12V typ AUXG SW RCG C Using internal 12V auxiliary output AUX Derating Curve Static Characteristics AMBIENT TEMPERATURE LOAD 20 40 60 50 80 100 20...

Page 26: ...s 500mA and 20V P OK GND P OK Function P OK The signal is Low when the power supply is 80 of the rated output voltage Power OK above Low 0 5V max at 500mA Low 0 5V max at 10mA Description Output of alarm P OK Relay Contact Output of alarm P OK2 TTL Signal The signal turns to be High when the power supply is under 80 of the rated output voltage Power Fail High or open External applied voltage 500mA...

Page 27: ... must not exceed the value determined by the following equation 4 In parallel operation 3 units is the maximum please consult the manufacturer for other applications 5 When remote sensing is used in parallel operation the sensing wire must be connected only to the master unit 6 Wires of remote sensing should be kept at least 10 cm from input wires 7 When in parallel operation the minimum output lo...

Page 28: ... 3 3W 220VAC SYSTEM STANDARD MODEL FOR STOCK R N S T 220V 220V FG1 N1 L1 FG R S L2 N2 FG2 T L3 N3 FG3 N N C T S N R FG1 N1 L1 FG R S L2 N2 FG2 T L3 N3 FG3 N NC R S T FG1 N1 L1 FG R S L2 N2 FG2 T L3 N3 FG3 N NC 220V 380V 110V 190V 3000W Single Output Power Supply RSP 3000 series 6 Three Phase Connect ...

Page 29: ...VERLOAD PROTECTION 105 150 TYPE PULSING HICCUP SHUTDOWN RESET AUTO RECOVERY OVER VOLTAGE PROTECTION 115 135 OVER TEMP PROTECTION TEMP COEFFICIENT 0 03 ºC 0 50ºC SETUP RISE HOLD UP TIME 800ms 50ms 10ms 115VAC 300ms 50ms 80ms 230VAC VIBRATION 10 500Hz 2G 10min 1cycle PERIOD FOR 60min EACH AXES WITHSTAND VOLTAGE I P O P 3KVAC I P FG 1 5KVAC O P FG 0 5KVAC ISOLATION RESISTANCE I P O P I P FG O P FG 50...

Page 30: ...control the transmitter from both the front panel and remotely through the parallel port Ethernet or SNMP access port some features optional The Adrenaline control system is comprised of three modules These modules work together to provide all the functions of the control system and include Display Interface RF and Temperature Sensor modules In higher power multiple pallet systems a fourth module ...

Page 31: ...T COMPARATORS SYSTEM MEASUREMENTS RF IN VARIABLE ATTENUATOR RF IN LEVEL MONITORING PHASE ADJUST DC OUT DC IN PANEL SWITCH INTERFACE MEMBRANE SWITCH CAT5 DISPLAY INTERFACE TOUCHSCREEN RF TEST POINT RF TO GAIN STAGES FWD RFL RF SAMPLE FROM COUPLER RF TO DC CONVERTER TEMP SENSOR SHUTDOWN INTERFACE RF TEMPERATURE SENSOR RJ45 INTERFACE DISPLAY INTERFACE 5V SWITCHING SUPPLY CHARACTER LCD CONTRAST SUPPLY...

Page 32: ...mplifier parameters from the front panel Forward incident power at the power amplifier output Reflected reverse power at the power amplifier output DC voltage of the power amplifier s power supply DC current in the power amplifier Temperature of the heat sink of the power amplifier The time since the transmitter translator was last shut down Full history of faults and events Mode of the power ampl...

Page 33: ...ed on higher power systems with multiple pallets then the Display Interface receives DC currents from the DC Distribution via the same CAN bus Other elements of the Display Interface module are also controlled by the microcontroller A buzzer BZ101 and software status LED D101 which flashes when the software microcontroller is running are all controlled through a buffer U102 DC supply enters throug...

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Page 36: ...llow for an operating summary at any time Also from any screen the transmitter s carrier can be turned on or off to facilitate adjustments settings and testing troubleshooting The following breakdown describes the Main Screen features in further detail Toggles between Main Screen and Menu Screen The menu screen has additional settings and monitoring over the Main Screen and is illustrated in the n...

Page 37: ...ll continually try and bring the RF power back to the same level when the fault occurred if it is safe to do so a warning is displayed in red text near the top of the touchscreen and the event recorder logs the event RF output power is determined largely in part by the amount of attenuation that the control system places on the input of the power amplifier Whether a fault occurs and attenuation ge...

Page 38: ...ange will maintain their original event stamp and will not be modified to reflect the change A Real Time Clock holds time for about one week without AC power Carrier ON OFF switch By pressing the toggle switch on the touchscreen the user can turn on or off the RF carrier The same result occurs by turning on or off the system via the web or SNMP interface or through controlling of the Remote Port A...

Page 39: ... changes to settings will be stored in non volatile memory with the exception of the date and time which are stored as long as the backup battery remains charged approximately one week of loss of AC power or power down While the user is in the sub menu screens anything besides the Main Screen full monitoring and protection is taking place This means that is a user makes a change to a setting or pa...

Page 40: ... TO MANUAL or CHANGE TO AGC button in the Adjust Levels half of the screen If a fault occurs while in AGC mode the system will default back to Manual mode and protective action will be taken NOTE Pressing the up and down arrows for Forward RF level change while in AGC will change the power The same holds true for Ethernet SNMP or Remote Port control The AGC is designed to hold the RF power level s...

Page 41: ...re than 2 If multiple amplifier pallets are included in the amplifier chain then the individual currents will all be displayed in the Currents section of the screen In the case of multiple pallets in the chain typically the user should see matching of the final pallets to within approximately 10 Anything outside this range is usually a sign that there may be an issue Transistor device or circulato...

Page 42: ...e equivalent of a standalone external remote monitor The Ethernet web server provides a means to monitor system information via a web site This is accomplished via the Ethernet connector on the back panel of the power amplifier The unit s IP address is listed in the Version Screen The SNMP offers a third method of monitoring system parameters and external control The user s Network Management Syst...

Page 43: ...s occur the earliest recorded event gets displaced on the screen If the user changes the time and or date from the Date and Time Screen then the events that occurred before the time and or date change remain unchanged with their original time stamp The user can clear the history screen by pressing the CLEAR HISTORY Users will find this screen useful in correlating events in the power amplifier wit...

Page 44: ...story and events that are external to the system The time is factory set to the factory s Mountain Standard Time MST Changes to the date or time are made by simply pressing the up or down arrows associated with each section month day hour etc Any changes will immediately be seen in the summary bar on the bottom right of the touchscreen When the changes are made simply press the BACK TO MAIN button...

Page 45: ... to factory documentation In addition current government certification numbers are included for Industry Canada and FCC Please contact Technalogix if you require copies of the actual grants or visit FCC https fjallfoss fcc gov oetcf eas reports GenericSearch cfm grantee code QH5 Ind Canada http www ic gc ca app sitt reltel srch nwRdSrch do lang eng company 3803 Finally general information is inclu...

Page 46: ...hnalogix for anything Whether they have a technical or installation question or simply want to chat about how gosh darn cool our equipment is Technalogix welcomes questions feedback and contact If you are in the area please feel free to stop by to tour the facility test drive some state of the art products or get a refresher on some training ...

Page 47: ... seen in the figure below Pressing the DEGREES F button will convert all temperature readings to degrees Fahrenheit from Celsius and vice versa Temperature protection trip points are factory set Similarly the user can switch between watts or percentage for their RF power readings When in percentage mode the power amplifier is designed for a maximum operating power of 100 with overdrive protection ...

Page 48: ...ernal current faults and external inputs and processes them through an OR NOR gate before the shutdown signal heads off board The DC current measurements that are to be used for display purposes are also filtered via op amps U301 through U306 and U323 DC voltage is monitored through U324 Microcontroller U325 handles the interface between the Display Interface and the DC Distribution and also conve...

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Page 51: ...readings of the heatsink The following is a block diagram of the Temperature Sensor module The temperature sensor IC is U701 which after it has taken a reading relays the digital information to the RF PCB module through J702 Also passing through J702 is a driver disable signal coming from the RF PCB module The Temperature Sensor module simply takes this signal and passes it through to a pad where ...

Page 52: ...Technalogix Ltd Adrenaline Control System VI 31 Temp sensor 1 11 component layout Top ...

Page 53: ...Technalogix Ltd Adrenaline Control System VI 32 Temp sensor 1 11 component layout bottom ...

Page 54: ...mit the output power of the transmitter translator monitor the output of the directional coupler which provides a voltage proportional to the forward and reflected power at the output of the transmitter translator communicate with the Temperature Sensor module to read heatsink temperatures and provide a link to the driver shutdown through the temperature sensor PCB and provide external remote oper...

Page 55: ...erature Sensor through J211 The high speed shutdown signal for the pallets is also passed through the Temperature Sensor PCB from the RF module The lower speed shutdown for the pallets or control is passed through pin 6 on J201 The microcontroller interfaces with the system CAN bus using U234 transceiver Through the CAN bus the RF board is able to communicate with the Display Interface module and ...

Page 56: ...lator provide additional gain if required before passing the RF signal onto the amplifier chain monitor the output of the directional coupler which provides a voltage proportional to the forward and reflected power at the output of the transmitter translator communicate with the Temperature Sensor module to read heatsink temperatures and provide a link to the driver shutdown through the temperatur...

Page 57: ...terfaces with the Temperature Sensor through J211 The high speed shutdown signal for the pallets is also passed through the Temperature Sensor PCB from the RF module The lower speed shutdown for the pallets or control is passed through pin 6 on J201 The microcontroller interfaces with the system CAN bus using U238 transceiver Through the CAN bus the RF board is able to communicate with the Display...

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Page 60: ...lator provide additional gain if required before passing the RF signal onto the amplifier chain monitor the output of the directional coupler which provides a voltage proportional to the forward and reflected power at the output of the transmitter translator communicate with the Temperature Sensor module to read heatsink temperatures and provide a link to the driver shutdown through the temperatur...

Page 61: ...nterfaces with the Temperature Sensor through J211 The high speed shutdown signal for the pallets is also passed through the Temperature Sensor PCB from the RF module The lower speed shutdown for the pallets or control is passed through pin 6 on J201 The microcontroller interfaces with the system CAN bus using U235 transceiver Through the CAN bus the RF board is able to communicate with the Displa...

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Page 64: ... internal IP from your router or you can set this manually see below A computer can be plugged directly into the Ethernet port to directly access the on board web interface Most new computers can do this with a standard Ethernet cable but some may require a crossover Ethernet cable The default internal address is http adrenaline or http adrenaline index htm After entering address into a web browse...

Page 65: ...al number of the unit are displayed in the top left of the screen The Status Flags section provides the user with feedback from the system Specifically there are status flags for Carrier is on or off Forward RF in Overdrive 110 FS Pallet Voltage Supply Good High VSWR High Temperature AGC on or off AGC or Manual mode ...

Page 66: ...Carrier on off Carrier Up Increase the Carrier by removing attenuation Carrier Down Decrease the Carrier by adding attenuation Turn AGC On Off Turns on the AGC automatic gain control The system will then try to maintain the current forward level VSWR Increase or Decrease the VSWR Trip point by 0 1 between 1 1 1 and 1 8 1 Reset Forces the system to reboot Note that if AGC is enabled and you press C...

Page 67: ...Enter a new name here if you wish to change this For example entering YourCompany will make the web address http yourcompany index htm HTTP Port shows the current port used for internet access 80 or 81 Port 80 is the default and is the accepted standard Port 81 is available because some internet providers block access to port 80 unless you pay more Be very careful changing this ...

Page 68: ...ally try to find a router and acquire an IP address If you want to set this manually uncheck the Enable DHCP box and enter it below then click Save Config To view the webpage from the internet rather than an internal network you need an external IP address generally provided by your internet provider Note that you can only have one web server using the same port With this anyone can access the sys...

Page 69: ...Technalogix Ltd Adrenaline Control System VI 66 SNMP Configuration ...

Page 70: ... Adrenaline Control System VI 67 The SNMP Configuration page allows you to set the SNMP communities Set these to limit access to the system via SNMP Default communities are READ public read WRITE private write public ...

Page 71: ...setting of the User or Admin password The User account allows access only to the main page The Admin account allows access to the main and all the configuration pages Passwords are 8 characters long Don t forget your password Resetting passwords isn t fun and may cause loss of all settings ...

Page 72: ...vel as rated full scale RF Input Level input level as rated full scale RF Fault hardware fault flag Run Time time since start up or reset Serial Number Model Number SNMP Error Flag error flag also for trap see below VSWR Flag error flag for high VSWR Overdrive error flag for overdrive Temperature Flag error flag for high temperature Read Write AGC mode 1 AGC on 0 AGC off Reset 1 Reset System 0 nor...

Page 73: ...hnalogix Ltd Adrenaline Control System VI 70 SNMP Traps To Enable traps Set enable traps to 1 Set the IP address to that of the receiving computer Set the community to one of the read communities set above ...

Page 74: ...ur receiver s port is set to 162 The system will generate a general trap on any error flag and send an 8bit value indicating the type of error Bit 0 LSB Overdrive Bit 1 High VSWR Bit 2 High Temperature Bit 3 High Speed Hardware Shutdown Bit 4 MSB High Input Level ...

Page 75: ...Technalogix Ltd Adrenaline Control System VI 72 Shown here is trap of a high temperature fault Value 4 ...

Page 76: ... 10 Do not use 11 High temperature flag3 12 High VSWR flag3 13 Amplifier overdriven flag3 14 Do not use 15 3 3Vdc for testing only do not load 16 Ground 17 Ground 18 25 Do not use Notes 1 Analog output with voltage ranging from 0 to 3 3Vdc 2 TTL level digital input active on rising edge 3 TTL level digital output active high In addition to the DB25 parallel data connector the user may chose to rem...

Page 77: ... combiner enclosure It can also be done from the SNMP or Ethernet interface which should be connected to the combiner enclosure This will cause all the amplifier boxes to try and maintain the current forward power level Temperature Voltage Current Temperature voltage and current readings on the enclosure s touch screen are for that unit only The SNMP and Ethernet interface will show each units rea...

Page 78: ...sure there are four fans that each provide 170 cubic feet per minute CFM of air flow into zero static pressure There are two fans mounted at the front of the heat sink and two mounted at the back end of the heat sink The fans are mounted side by side to produce the best cooling for the system and are operating in a push pull configuration to assist with heat dissipation The Combiner Filter enclosu...

Page 79: ... to expect long life and continued performance from the power amplifier The building must be clean dry temperature controlled and secure Don t forget to allow space in the building for any additional racks to house test equipment a workbench area line regulating transformers ladders equipment and parts storage first aid kit emergency generator if used as well as heating and cooling devices that ma...

Page 80: ...us an additional 20 Keep the intake below the roofline to avoid intake of solar heated air Please ensure that the intake and exhaust areas are on the same side of the building to avoid pressure differentials during windy conditions Also do not position intake near exhaust s preheated air If air conditioning is required to cool the shelter discuss the situation with a qualified HVAC technician Unde...

Page 81: ...tional electrical code in your area any applicable provincial or state codes and good engineering practice Special consideration should be given to lightning protection of all systems in view of the vulnerability of most transmitter or translator sites to lightning Lightning arrestors are recommended in the service entrance Straight and short grounds are recommended The electrical serviced must be...

Page 82: ...ection and wind loading of the system Attaching the transmission line to the tower is crucial to maintain a safe and reliable operation Nylon wire ties and electrical tape will breakdown in the sunlight and ultimately fail creating a potentially dangerous situation It is important to use proper clamps and hoisting grips and also ensure that the transmission line is grounded to the tower in several...

Page 83: ...er implies that it be secure from wildlife Use sturdy construction materials including sheet metal if necessary Holes around conduit cable and other similar entry points should be stuffed with steel wool and caulked to prevent entry of wildlife Other features of security for your shelter may include its location with respect to the prevailing wind conditions A location leeward of some natural topo...

Page 84: ...ectors or fan failures Inspect all connectors for bent connector pins If the equipment is damaged a claim should be filed with the carrier once the extent of the damage is assessed Technalogix cannot stress too strongly the importance of immediate careful inspection of the equipment and subsequent immediate filing of the necessary claims against the carrier if necessary If possible inspect the equ...

Page 85: ... 7 Location and Function of Controls and Connectors each TAUD 500 Power Amplifier The following illustration depicts the location of the connectors when installing each of the 500 watt 8VSB power amplifiers TAUD 500 that comprise the TAUD 1000 ...

Page 86: ...E PORT Remote interface and control Connector is individual pins and not serial interface Pinout described in Monitor and Control section CAN No Connection RS232 No Connection ETH SNMP Ethernet or SNMP RJ45 connection Pin Number Description 1 Ground 2 Forward power sample1 3 Reflected power sample1 9 Reset2 11 High temperature flag3 12 High VSWR flag3 13 Amplifier overdriven flag3 14 5Vdc 15 3 3Vd...

Page 87: ...ors Combiner Filter Enclosure The following illustration depicts the location of the connectors when installing the Combiner Filter enclosure that takes the outputs of the 2 TAUD 500 combines them and passes the combined 1 000 watt RMS signal through a bandpass filter and directional coupler ...

Page 88: ...ial interface Pinout described in Monitor and Control section CAN No Connection RS232 No Connection ETH SNMP Ethernet or SNMP RJ45 connection Pin Number Description 1 Ground 2 Forward power sample1 3 Reflected power sample1 4 Carrier Off2 5 Carrier On2 6 Increase carrier level level must have first been decreased 2 7 Decrease carrier level 1dB decrements 2 9 Reset2 11 High temperature flag3 12 Hig...

Page 89: ...Function of Controls and Connectors Power Supply Enclosure The following illustration depicts the location of the connectors when installing the Power Supply enclosure DC OUT DC output 30Vdc fed independently to each of the 2 TAUD 500 Power Amplifier enclosures ...

Page 90: ...o feed the modulator if the system is a transmitter If the system is a translator ensure that the modulated RF signal is present at the input to the processor translator that will feed the power amplifier 6 Connect the CATS cables from the combiner outputs 2 to each CAN on the power amplifier 7 Hook up the modulator or processor as shown in their respective manuals for a transmitter or translator ...

Page 91: ...Technalogix Ltd TAUD 1000 Transmitter VIII 13 At this stage the system is set up and ready to do a preliminary start up as outlined in the following section ...

Page 92: ... of the power amplifier depending on the system 5 Verify that the power amplifier fans are all on The fans are powered via DC voltage so this is an indication that the power supply is started and running 6 The internal soft start circuitry will turn the bias voltages off until the power supply to the amplifier pallets is fully stable The front display indicates when the soft start is running with ...

Page 93: ...the display of the power amplifier 12 Look at the transmitted output using a suitable monitor The picture and sound quality should be clean and sharp If the output picture and sound quality is unsatisfactory check the input signals connections to the antenna system antenna and transmission line VSWR and the physical condition of the antenna If reception problems are encountered and the quality of ...

Page 94: ...plug all of the AC inlet cords Remove the top lid by unscrewing the 6 32 machine screws Use extreme caution when working near the AC input terminal The power amplifier and power supply store hazardous capacitances and voltages Using either compressed air or a brush with soft bristles loosen accumulated dust and dirt and then vacuum the interior of the cabinet Complete a visual inspection of the in...

Page 95: ...rect operating position Is the input signal present Check LCD readings for presence of forward and reflected power and 31 V DC supply levels The above is an aid in determining the fault if some aspect of the system is not operating The following table deals with quality of operation Symptom Possible Fault Correction Horizontal bars in picture may roll either way depending on phase AC grounding AC ...

Page 96: ...on line Ensure correct antenna impedance 50 ohms Check antenna tuning and VSWR Verify correct cable for transmission line length Check all cables for visible damage kinks nicks or cuts Check all connectors for poor connections water or corrosion Check alignment of antenna Check for physical damage of antenna including ice build up ...

Page 97: ...Thank you for choosing Technalogix Ltd ...

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