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Mirage B-

320

-G Instruction Manual 

-4- 

7. 

PRE-AMP (ON/OFF) SWITCH 

 

When engaged the amplifier's pre-amp will be switched 

 

into the circuit for receive.  A sensing circuit will  

 

disengage the pre-amp when a transmitted signal is 

 

applied to the amplifier's input.  The pre-amp may also  

 

work  independently if the amplifiers main power  

 

switch is off. 

 
8. 

POWER (ON/OFF) SWITCH 

 

When engaged, the amplifier is ready to amplify any  

 

signal applied to its input of the proper frequency. 

 

 

Summary of Contents for B-320-G

Page 1: ...s 200 watts is achieved with 250 mW to 10 Watts input on Lo or 10 Watts to 50 Watts input on Hi 2 All mode compatibility FM SSB CW In the SSB mode the time constant of the Voice Operated Transmit VOX relay is set to approximately one second to prevent annoying relay chatter during conversation and achieving smooth SSB transmission 3 Wrap around heat sink The heat sink and combined case by original...

Page 2: ... enables you to enjoy a more comfortable VHF QSO with weak stations SPECIFICATIONS FREQUENCY 144 TO 148 MHz Low RF INPUT 250 mW 10 Watts Hi RF INPUT 10 Watts 50 Watts RF OUTPUT 200 WATTS TYPICAL DUTY CYCLE INTERMITTENT ICAS MODES FM SSB CW RECEIVE PRE AMP 15db TYPICAL KEYING AUTOMATIC SENSING SUPPLY VOLTAGE 12 15 VOLTS DC RF CONNECTORS TWO 2 SO 239 UHF SUPPLY CURRENT 15 AMPS or better FUSE 30 AMP ...

Page 3: ...both the receive and transmit signal will bypass the internal circuitry of the amplifier If the LED is illuminated then the amplifier is in the standby mode and will amplify any signal that is supplied to its input of more than 250 mW 5 SWR Fault LED 6 MODE SSB FM SWITCH When in the SSB mode the amplifier will delay the change over time of the carrier operated transmit relay to 1 second before dis...

Page 4: ...it for receive A sensing circuit will disengage the pre amp when a transmitted signal is applied to the amplifier s input The pre amp may also work independently if the amplifiers main power switch is off 8 POWER ON OFF SWITCH When engaged the amplifier is ready to amplify any signal applied to its input of the proper frequency ...

Page 5: ...ER SWITCH 10 RADIO The coax from your radio or exciter is connected to this connector 11 13 8V DC This connection has two wires The RED wire is for positive The BLACK wire is for negative 12 FUSE 13 ANTENNA The coax from your antenna is connected to this port ...

Page 6: ... power leads use wire of the same gauge in order to avoid a voltage drop on your power leads Be careful that the DC power supplied is no higher than 15 volts or damage may result A source voltage of 13 8 volts is recommended and should be used whenever available Some automobiles will generate a high current surge when started It is recommended that the amplifier be place in the off position when s...

Page 7: ...ive troubleshooting in the field If difficulty is encountered check the following before assuming the amplifier has a malfunction 1 Loose antenna or power supply connections 2 SWR of the antenna system 3 Coaxial cables form radio to amplifier and amplifier to antenna 4 Output voltage of power supply 5 Power output of radio 6 Improper fuse rating ...

Page 8: ... not solved by reading the manual you may call MIRAGE at 601 323 8287 You will be best helped if you have your unit manual and all information on your station handy so you can answer any questions the technicians may ask You can also send questions by FAX to 601 323 6551 Send a complete description of your problem an explanation of exactly how you are using your unit and a complete description of ...

Page 9: ...void this one year warranty We recommend that units requiring repair during the warranty period be returned to the factory This unit was not designed for repeater operation and its use in such service is at your own risk Mirage assumes no responsibility for any item connected to or used in conjunction with this product The foregoing constitutes Mirage s entire obligation with respect to this produ...

Page 10: ...Mirage B 320 G Instruction Manual 10 SCHEMATIC ...

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