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Motorola HF-SSB MICOM-500E-A G761AA Owner's Manual

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American Communication Systems
Discover the Power of Communications
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TO ORDER – VISIT
HF-SSB MICOM-500E Model G761AA / G762AA
This manual is an appendix to the Micom 2E-T r u n k O w n e r ' s Ma n u a l 6 8 0 2 9 5 2 C 6 0
HF-SSB
MICOM-500E-A
O w n e r ' s Ma n u a l
6886858J01-A

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  Summary of Contents for Motorola HF-SSB MICOM-500E-A G761AA

  • Page 1 This manual is an appendix to the Micom 2E-T r u n k O w n e r ’ s Ma n u a l 6 8 0 2 9 5 2 C 6 0 HF-SSB MICOM-500E-A O w n e r ’ s Ma n u a l...
  • Page 2: Table Of Contents

    HF-SSB Micom – 500E-A CONTENTS Introduction............................2 General Specifications ...........................2 Block diagram............................3 Controls and indicators ..........................4 General principles of operation......................5 500W HF Linear Amplifier Unit ......................6 DC Power Supply ..........................7 Junction Box ............................7 Performance Specifications ........................8 500W Transceiver Model Complements .....................11 Trouble Shooting ..........................11 Radio Tuning Procedure ........................12 ALE..............................12...
  • Page 3: Introduction

    HF-SSB Micom – 500E-A INTRODUCTION The transceiver is a complete unit that includes Micom-2ET, 500watts amplifier , power supply, e n c l o s e d t o g e t h e r i n a 1 9 ” d r a w e r . T h e c o n t r o l h e a d o f t h e r a d i o i s p l a c e d o n t h e d r a w e r ’ s f r o n t panel.
  • Page 4: Block Diagram

    HF-SSB Micom – 500E-A MICOM-500W BLOCK DIAGRAM 110/220 AC CONTROL HEAD RADIO 13.8v ON/OFF POWER SUPPLY RF OUT J-BOX RF IN TO ANTENNA SENS NOTE: ALL THE WIRES AND CABLES CAT No - 01MB000027...
  • Page 5: Controls And Indicators

    HF-SSB Micom – 500E-A Controls and Indicators Power Amplifier module has the following controls and indicators: Indicator VOLT – shows when power supply voltage is out of limits. In OVER – input overload indicator. Input power is out of limits. TEMP –...
  • Page 6: General Principles Of Operation

    HF-SSB Micom – 500E-A General principles of operation Block diagram of the power amplifier is shown at Fig.4. Input RF signal with 25W nominal l e v e l c o m e s t h r o u g h “ R F I n ” c o n n e c t o r t o T S 1 2 2 7 b o a r d o f P A MP 5 0 0 a m p l i f y i n g d e v i c e consisting of 4-channel power splitter and 4-channel amplifier.
  • Page 7: 500W Hf Linear Amplifier Unit

    HF-SSB Micom – 500E-A MICOM 2E-Trunk For Micom 2E-Trunk specification see user manual 6802952C60 500W HF Linear Amplifier Unit Input Voltage: 28 VDC Power Output: 1.6-30MHZ: 500W PEP and average The power amplifier is fully protected by microprocessor control. This circuitry dynamically monitors all amplifier parameters, and provides adjustments and protection against high VSWR, under voltage, over current and high temperature conditions.
  • Page 8: Dc Power Supply

    HF-SSB Micom – 500E-A DC Power Supply Model: EWS1500-15 Nominal Output Voltage: 28V-50A----14V-30A Input Voltage Range: 85~132 VAC / 170~265 VAC (Auto Selectable), 47~63 Hz 110/220 VAC power supply - if need to convert the power supply from 220VAC to 110VAC, please detached the 110/220VAC panel at the rear panel of the unit and short the A and B terminals.
  • Page 9: Performance Specifications

    HF-SSB Micom – 500E-A PERFORMANCE SPECIFICATIONS for 500W TRANSCEIVER GENERAL 1.6 – 30 MHz Frequency Range XMIT 0.1 – 30 MHz (0.1 - 1.6 MHz reduced spec) Frequency Range RX RF Input Impedance 50 Ohms Number of Channels 200 SIMPLEX or HALF DUPLEX Scanning 5 groups with up to 100 channels per group, including 1 guard channel.
  • Page 10 HF-SSB Micom – 500E-A TRANSMITTER Output Power 500W P.E.P. and average +/-1dB Reduced Power Levels 500W, 400W, 300W, 200W (RSS programmable) 350 to 2700 Hz at – 6dB Audio Bandwidth Audio Bandwidth Ripple 3 dB Intermodulation -31 dB / 500W P.E.P Spurious Emissions -60 dB / 500W P.E.P Carrier Suppression...
  • Page 11 HF-SSB Micom – 500E-A Undesired Sideband Rejection -55 dB @ -1 kHz Spurious -80 dB Intermodulation -80 dB Crossmodulation -100 dB @ 100 kHz Desensitization -100 dB @ 100 kHz Reciprocal Mixing -100 dB @ 100 kHz Audio Power at Speaker 5W @ 2.5% distortion 5 ...
  • Page 12: 500W Transceiver Model Complements

    TROUBLE SHOOTING In case of malfunctioning, perform the following steps (refer to the Maintenance section in MICOM-2E Owner’ s manual, Motorola publication number 6802952C60). 1. Turn OFF and ON the radio switch to reset both the radio and the amplifier.
  • Page 13: Radio Tuning Procedure

    HF-SSB Micom – 500E-A RADIO TUNING PROCEDURE Before operating the 500W transceiver, a calibration procedure should been taken. An IBM PC and RSS (Radio Service Software) package, FLN2514, are required to align the radio.(factory setting) 1 . O n t h e a c c e s s o r i e s s e c t i o n , p l e a s e m a r k t h e c h e c k b o x o f t h e “ 1 k w A m p l i f i e r ” . 2.

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Hf-ssb micom-500e-a g762aa