Technalogix TAU-100 Manual Download Page 15 | Manualshive

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III-6

Aural Characteristics

Input Level for 25 kHz Deviation

0.3 V

PP

Frequency Response (Standard Pre-emphasis)

±1 dB

Harmonic Distortion (25 kHz Deviation)

< 1% 50 Hz to 15 kHz

Amplitude Modulation Noise

> 50 dB

Frequency Modulation Noise

> 60 dB

Intercarrier Stability

±250 Hz

Physical Characteristics

Power Requirements

100-130,210-230 vac, 50/60 Hz

Operating Temperature

0 - 50

°

C

Dimensions (power amplifier only)

W-19”,D -21 ¼”, H-5 ¼”, 3U-high

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Summary of Contents for TAU-100

Page 1: ...TAU 100 POWER AMPLIFIER NEW ADVENTURES IN BROADCASTING Technalogix...

Page 2: ...nderstand 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 yo...

Page 3: ...LIFIER PALLETS IV 1 SPLITTER COMBINER IV 4 DIRECTIONAL COUPLER IV 4 ISOLATOR IV 4 FILTER IV 4 SECTION V POWER SUPPLY SECTION V 1 SECTION VI MONITOR AND CONTROL SYSTEM VI 1 CONTROL BOARD OVERVIEW SERIE...

Page 4: ...TOWER RECOMMENDATIONS VIII 4 SHELTER SECURITY VIII 5 UNPACKING AND INSPECTI ON VIII 6 LOCATION AND FUNCTION OF CONTROLS AND CONNECTORS TAU 100POWER AMPLIFIERS VIII 7 LOCATION AND FUNCTION OFCONTROLS A...

Page 5: ...MENTATION 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...

Page 6: ...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 method...

Page 7: ...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 p...

Page 8: ...ges of whatever nature arising out of or in connection with the equipment or its use thereof Technalogix does not assume responsibility for injury or damage resulting from the practices of untrained o...

Page 9: ...MA number is provided Package equipment carefully for prepaid shipment to Technalogix Include a written description of the problem experienced a copy of the original invoice establishing warranty stat...

Page 10: ...nd control ensures amplifier will never be overdriven and high VSWR will not damage amplifier AC circuit breaker on back panel to eliminate replacement of fuses RF EMI filtering on AC entry plug All a...

Page 11: ...tuneable The TAU 100 power amplifier is a modular solid state 100 watt broadcast amplifier utilizing readily available RF components wherever possible thus enhancing the serviceability of the equipme...

Page 12: ...ransients that may come into the power amplifier After attenuation the signal is amplified through the UHFTV 10 driver and UHFTV 150 T final pallets before the signal passes through an isolator circul...

Page 13: ...A 0 1dB A 0 3dB To Wattmeter and Antenna A 0 2dB typ UHFTV 150 UHFTV 10 RF OUT RF INPUT V V COUPLER DIRECTIONAL V CIRCULATOR FILTER TERMINATION 50 OHM ATTENUATION TAU 100 Block Diagram Date May 24 20...

Page 14: ...annel Minimum Input Level 0 dBmV Rated Visual Output Power 100 Watts Rated Aural Output Power 10 of peak visual power IF Output Level 35 dBmV nominal Input Impedance 75 Ohms Output Impedance 50 Ohms H...

Page 15: ...dB Harmonic Distortion 25 kHz Deviation 1 50 Hz to 15 kHz Amplitude Modulation Noise 50 dB Frequency Modulation Noise 60 dB Intercarrier Stability 250 Hz Physical Characteristics Power Requirements 1...

Page 16: ...ductor technology LDMOS technology offers higher gain efficiency and linearity over standard MOSFET and Bipolar devices LDMOS transistors have the added advantage of not having BEO Beryllium Oxide in...

Page 17: ......

Page 18: ......

Page 19: ...off is 33 dBc at a point 4 5 MHz below the peak visual carrier frequency and 30 dBc 9 0 MHz above the peak visual carrier frequency The filter is DC grounded on both the input and output for addition...

Page 20: ...ainst 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 blo...

Page 21: ...NRUSH CURRENT 18A 115V 36A 230V LEAKAGE CURRENT 3 5mA 240VAC OVERLOAD PROTECTION 105 135 TYPE FOLDBACK CURRENT LIMITING RESET AUTO RECOVERY OVER VOLTAGE PROTECTION 13 8 16 2V 15 5 18 2V 18 21V 27 6 32...

Page 22: ......

Page 23: ...acklighting on the LCD 3 4Vdc for the contrast voltage required by the LCD 4 8Vdc for the directional coupler supply The 5Vdc is generated from a small switching power supply comprised of C1 C2 D2 L1...

Page 24: ...isplays forward and reflected RF power and DC supply voltage parameters When power amplifier is first turned on the LCD comes on automatically and this information is displayed Information is displaye...

Page 25: ...er pallet in the system The U14 generates the signal out of pin 21 and controls relay Q2 through R17 When Q2 is turned off the shutdown voltage to the driver is floating and the carrier is on During a...

Page 26: ...U8 configured as unity gain voltage followers Finally after some further decoupling capacitors and filters the analog signals get digitized by the 8 channel 10 bit ADC U10 and sent to the microcontrol...

Page 27: ...an alphanumeric 20X4 display that uses the industry standard 44780 controller and a parallel interface for data communications Firstly the microcontroller sends out the data to be displayed via a seri...

Page 28: ...r is monitored closely via supervisor U13 Should the 5Vdc supply drop below 4 5Vdc a microcontroller reset is generated to ensure there are no brown out conditions that may latch the microcontroller u...

Page 29: ...own for 1 minute automatically turn amp on after 1 minute and check again for overdriven amplifier come back to the same power level that it was set If you see this message the system will shut amp do...

Page 30: ...tions on the remote port are simply hard wired or paralleled to existing wiring to provide a secondary method of control to the user and are activated as follows pin 1 ground to reset microcontroller...

Page 31: ...0 14A Itrip 0 34A Vmax 60V miniSMD Raychem miniSMDC014 2 18 2 J1 J8 CONNECTOR 4 position plug 180 degree wire entry 90 degree screw access 5 08mm Wieland 25 340 3453 Weco 10 808 104 19 2 J1 J8 CONNEC...

Page 32: ...nal LM2595T 5 0 49 1 U3 REGULATOR linear 5V 1A Through hole TO 220 7805CT 50 1 U4 REGULATOR inverter 100mA SMD SOIC 8 National LM2660M Analog Devices ADM8660 Maxxim MAX660 51 2 U5 U6 OPTOISOLATOR dual...

Page 33: ...8 U4 BkLtCtrl GND 8V OUT GND Vin L1 D2 ELECTROLYTIC C1 D1 F1 3 J1 1Vin 2 Vout 4 Feedbk 3 Gnd 5 On Off U1 ELECTROLYTIC C2 5Vdc 4 J1 ELECTROLYTIC C5 ELECTROLYTIC C6 2Vin 1 Vout 4 Feedbk 3 Gnd 5 On Off U...

Page 34: ...2 Q2 Rly Ctrl 5Vdc RLY1 Rly COM Rly N O Rly N C J7 3 J7 1 Buzzer J5 Q1 5Vdc R16 RES In NC RC6 VW In PWR In J3 1 P1 P2 P3 P4 P5 P6 P7 P8 U6 P1 P2 P3 P4 P5 P6 P7 P8 U5 R5 R6 R7 5Vdc R8 R9 VW uPC PWR uP...

Page 35: ...12 13 4 11 14 U8 4 4 J8 1 Analog 1 J8 2 Analog 2 J8 3 Analog 3 Isoltd 4 Isoltd 3 Isoltd 2 Isoltd 1 BESIDE C18 0805 F8 F7 F6 D9 D10 D11 C13 5V L11 D8 D7 D6 F3 F4 F5 SOLDER SIDE C10 1206 CHIP Isoltd 5 I...

Page 36: ...1 U9 5Vdc C45 C42 C41 C40 C39 C38 C37 C36 C35 C34 C21 C31 C16 C28 NEAR U8 C2 0805 C12 C25 DtoUPC DfromUPC Dclk ConvStrt Isoltd 1 Isoltd 2 Isoltd 3 Isoltd 4 Isoltd 5 Isoltd 6 Isoltd 7 Isoltd 8 Vref Cre...

Page 37: ...LCD D1 LCD D2 LCD D3 LCD D4 LCD D5 LCD D6 LCD E LCD R W LCD RS J9 13 J9 12 J9 11 J9 10 J9 9 J9 8 J9 7 J9 4 J9 5 J9 6 LCD Vss LCD Vdd LCD Vo J9 1 J9 2 J9 3 LED K LED A J9 15 J9 16 Unbuf D Unbuf C Unbuf...

Page 38: ...C48 5Vdc MCLR Vpp RA0 RA1 RA2 RA3 RA4 RA5 Vss OSC1 CLKin OSC2 CLKout RC0 T1CKI RC1 CCP2 RC2 CCP1 RC3 SCK CLRC4 SDI SDA RC5 SD0 RC6 TX CK RC7 RX CK Vss Vdd RB0 INT RB1 RB2 RB3 RB4 RB5 RB6 RB7 U14 CS SO...

Page 39: ...g which helps the longevity of the entire system The heat sink has hollow fins which help dissipate the heat from the amplifiers faster than a conventional serrated or corrugated fin In addition to th...

Page 40: ...ong 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 hou...

Page 41: ...onal 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 duri...

Page 42: ...rical 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...

Page 43: ...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 ult...

Page 44: ...hat 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 caul...

Page 45: ...n 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 s...

Page 46: ...ogix Ltd VIII 7 Location and Function of Controls and Connectors TAU 100 Power Amplifier The following illustration depicts the location of the connectors when installing the 100 watt power amplifier...

Page 47: ...with reset comes back on with soft start feature RF IN RF input from modulator or processor BNC connector 50 ohm RF OUT 100 watt RF output Connects to inline wattmeter not supplied and antenna N conne...

Page 48: ...ulator or processor to RF IN on the power amplifier at this time Because of the characteristics of LDMOS devices the RF drive should not be connected to the power amplifier until after the power suppl...

Page 49: ...lator or processor into AC mains 110Vac 4 Plug the 3U power amplifier enclosure into AC mains 110Vac 5 Switch AC rocker switch to ON position 6 Verify that the power amplifier enclosure s fan is on 7...

Page 50: ...zero However should a high VSWR be detected the system will automatically shut down and cycle as previously described This is also a peak wattage reading 12 Verify that the power supply reads approxim...

Page 51: ...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 capacita...

Page 52: ...ating position Is the input signal present Check LCD readings for presence of forward and reflected power and 30 V DC supply levels The above is an aid in determining the fault if some aspect of the s...

Page 53: ...st to meet specification High reflected power Incorrect load Ensure amplifier connected to transmission line Ensure correct antenna impedance 50 ohms Check antenna tuning and VSWR Verify correct cable...

Page 54: ...Thank you for choosing Technalogix Ltd...

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