TriCom AM-SAT-50 Operator'S Manual Download Page 6

AM-SAT-50 OPERATOR’S MANUAL

90400-01078_B 

1-3

 

 

 

 

1.3 EQUIPMENT 

DESCRIPTION

 

 

The DAMA Certified AM-SAT-50 Remote Bi-Directional Amplifier System is used to 

provide transmit and receive amplification and cosite filtering for UHF SATCOM 
communications.  It is suitable for vehicular, airborne, or fixed-station applications and is 
compatible with all UHF SATCOM radios. The Amplifier is weather-proof and is typically 
located outdoors with the antenna. The Bias Tee is splash-proof and is usually located with the 
radio, but may be placed anywhere between the radio and amplifier.  The system connects in-
line with the radio and antenna with coax cable, with a connection for DC power input located 
on the Bias Tee. There are operator controls located on the Bias Tee and the Amplifier. The 
Bias Tee has a Power On/Off circuit breaker. The amplifier also has an auxiliary DC connector 
for direct connection to a DC power source when a Bias-Tee is not needed (typically for 
vehicle applications).  The Amplifier has a three position switch to control receive gain, and a 
Five position transmit power switch. The AM-SAT-50 interfaces with other equipment, 
including:  

 

Any UHF SATCOM antenna with a 50 Ohm impedance  

 

 

SATCOM terminals, including the AN/PSC-5 and AN/PRC-117 

 

Conditioned power from a source of +22 to +32 VDC  

 

 
 

1.4 FEATURES

 

 

The AM-SAT-50 has the following features: 

 

 

 

JITC DAMA Certification  

 

Pre-amplification of received RF signals from remotely located antennas  

 

Power amplification of transmit signals to 25, 35, 50 Watts  

 

Transmit and receive band filtering to eliminate interference from co-located radios and 
amplifiers  

 

Amplifier front panel indication of system status  

Summary of Contents for AM-SAT-50

Page 1: ...TRICOM RESEARCH INC OPERATOR S MANUAL AM SAT 50 DAMA CERTIFIED UHF SATCOM REMOTE BI DIRECTIONAL AMPLIFIER www tricomresearch com 17981 Sky Park Circle Suite M Irvine CA 92614 ...

Page 2: ... 4 1 6 Specifications 1 6 2 0 OPERATION 2 1 General Information 2 1 2 2 Controls Indicators and Connectors 2 1 2 3 Operational Procedures 2 2 2 3 1 General Information 2 2 2 3 2 Equipment Set up 2 2 2 3 3 Operating Procedures 2 3 2 3 3 1 Normal Operation 2 3 2 3 3 2 Bypass Operation 2 3 2 3 3 3 Improper Operation 2 4 3 0 INSTALLATION 3 1 General Information 3 1 3 2 Preparation for Use 3 1 3 3 Cabl...

Page 3: ...Table 3 1 AM SAT 50 Coaxial Cable Length Guide 3 1 LIST OF FIGURES Figure 1 1 AM SAT 50 System Components 1 1 Figure 1 2 AM SAT 50 Functional Block Diagram 1 5 Figure 2 1 AM SAT 50 Front Panel Controls Indicators and Connectors 2 1 Figure 3 1 AM SAT 50 Coax Cable Length Guide 3 2 Figure 3 2 AM SAT 50 Power Cable Wiring Diagram 3 3 Figure 3 3 Amplifier Mounting Dimensions 3 4 Figure 3 4 Bias Tee Mo...

Page 4: ...1 1 The system is a amplifier pre amplifier designed to provide transmit and receive gain for UHF SATCOM channels while eliminating disruptive cosite interference on DAMA and non DAMA 5 KHz and 25 KHz channels The AM SAT 50 has been DAMA Certified with several UHF SATCOM terminals For a listing of the current certifications please see the Joint Interoperability Test Command JITC website Figure 1 1...

Page 5: ...COMSEC Communications security dB Decibel dBm Decibel referenced to 1 milliwatt 0 dBm 1 mW FM Frequency modulation Hz Hertz KHz Kilohertz LED Light emitting diode LOS Line of sight MHz Megahertz mW Milliwatt PT Plain text PTT Push to talk RCV Receive SATCOM Satellite communications UHF Ultra high frequency VDC Volts direct current VSWR Voltage standing wave ratio W Watt X MODE Connector for COMSEC...

Page 6: ...rols located on the Bias Tee and the Amplifier The Bias Tee has a Power On Off circuit breaker The amplifier also has an auxiliary DC connector for direct connection to a DC power source when a Bias Tee is not needed typically for vehicle applications The Amplifier has a three position switch to control receive gain and a Five position transmit power switch The AM SAT 50 interfaces with other equi...

Page 7: ...eral printed circuit assemblies a filtering and switching network and associated connectors and switches housed in a watertight aluminum housing With normal care and maintenance the assembly is highly resistant to corrosion from the elements The interconnections to the Amplifier are made via two female type N connectors Through holes are provided on the base plate for mounting purposes A DC power ...

Page 8: ...AM SAT 50 OPERATOR S MANUAL 90400 01078_B 1 5 Figure 1 2 AM SAT 50 Functional Block Diagram ...

Page 9: ...CTION Frequency Range 292 318 MHz RF Power Input 1 20 Watts RF Power Output 25 35 50 Watts Harmonics 60 dBc DAMA Capability Fully Compliant including HPW Maximum Transmit Duty Cycle Continuous RECEIVE SECTION Frequency Range 242 268 MHz Noise Figure 3 5 dB typ Receive Gain 10 20 30 dB GENERAL Input VSWR 1 5 1 Output VSWR 1 5 1 VSWR Mismatch High VSWR indication no damage with mismatch DC Power 24 ...

Page 10: ...Tee RF to from and 28 VDC from Bias Tee N female Antenna RF to from antenna N female 28 VDC DC power in MS3102E14S 5P Table 1 3 AM SAT 50 General Characteristics Characteristic Specification Operating Voltage 24 28 VDC nominal 22 to 32 VDC max Operating Current 1 Amp typical receive 8 Amps typical transmit Operating Temp 20 to 55 C over temperature protected Size Bias Tee 1 5 H x 3 W x 5 D Amplifi...

Page 11: ...in close proximity to the sides or back of the antenna when transmitting 2 2 Controls Indicators and Connectors The AM SAT 50 does not require user interaction once installed inspected and powered on However there are several helpful status indicators on the Amplifier s front panel All of the controls indicators and connectors are located on the end panels of the Amplifier and Bias Tee as shown in...

Page 12: ...tch BIAS TEE N female connector Connects to the Bias Tee ANTENNA N female connector Connects to a UHF SATCOM Antenna 28 VDC MS3102E14S 5P connector DC Power input mating cable connector is a MS3106F14S 5S 28 VDC Green LED Indicates DC power is reaching the Amplifier TX Yellow LED Indicates that the Amplifier has has switched to the transmit mode VSWR Red LED Indicates that the Amplifier has Sensed...

Page 13: ...uminated whenever the radio is keyed 7 Note that the VSWR and TEMP lights are not illuminated Paragraph 3 1 contains appropriate Amplifier receive pre amp gain setting guidelines 2 3 3 2 Bypass Operation When powered off the amplifier systems provide a low loss RF path through both the Bias Tee and Amplifier Communications are possible across the 30 512 MHz band in this mode of operation This way ...

Page 14: ...le faulty Inspect power cable TX light fails to illuminate VSWR light illuminates Radio power set too low Cable between Bias Tee and Amplifier faulty Cable between Bias Tee and Amplifier excessively long TX frequency is outside of UHF SATCOM band Increase radio output power Inspect coax cable Shorten coax cable Set TX frequency between 292 and 318 MHz TEMP light Illuminates Heat sink is obstructed...

Page 15: ...re it is protected from direct salt spray rain and sunlight will tend to increase its service life 3 3 Cable Interconnections Attach the cables to the system as shown in Figure 3 1 Cable W1 is supplied with the system and is detailed in Paragraph 3 4 Cables W2 and W4 may be RG 58 RG 223 etc Cable W3 should be RG 214 or better The loss through cable W4 should be kept below 0 75 dB for best performa...

Page 16: ...AM SAT 50 OPERATOR S MANUAL 90400 01078_B 3 2 Figure 3 1 Coax Cable Length Guide ...

Page 17: ...e 16 AWG and are covered with a mesh nylon jacket The power supply ends are terminated with 5 16 ring terminals The cable is approximately four feet long Figure 3 2 AM SAT 50 Power Cable Wiring Diagram RED BLACK MS3106E14S 5S TO 24 32 VDC TO GROUND RING TERMINALS Table 3 2 AM SAT 50 Power Cable Signal Description PIN SIGNAL NAME COLOR SPECIFICATION A B E DC Power Red 24 to 32 VDC C D DC Ground Bla...

Page 18: ...AM SAT 50 OPERATOR S MANUAL 90400 01078_B 3 4 3 5 Mounting Provisions Figures 3 3 and 3 4 provide the mounting hole locations for the AM SAT 50 Figure 3 3 Amplifier Mounting Dimensions ...

Page 19: ...AM SAT 50 OPERATOR S MANUAL 90400 01078_B 3 5 Figure 3 4 Bias Tee Mounting Dimensions ...

Page 20: ...AM SAT 50 OPERATOR S MANUAL 90400 01078_B 3 6 ...

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