Mirage B-215-G User Manual Download Page 1

 

 
 

Table of Contents 

 
 

MIRAGE B-215-G  RF Amplifier...................................................................................................1 

Specifications ..................................................................................................................1 
Installation .......................................................................................................................2 
Front Panel Switches/LED's ............................................................................................2 
Rear Panel Connectors: ..................................................................................................3 
Internal Adjustments: ......................................................................................................3 
B-215-G Tuning Procedure .............................................................................................3 

Setting the Idling Current....................................................................................3 
Measurement of Insertion Loss..........................................................................4 
Tuning the Amplifier ...........................................................................................4 
Setting the Trip Points ........................................................................................5 
Adjusting The Receive Preamp..........................................................................6 

Troubleshooting:..............................................................................................................7 
Technical Assistance ......................................................................................................7 

 
 

Summary of Contents for B-215-G

Page 1: ...ront Panel Switches LED s 2 Rear Panel Connectors 3 Internal Adjustments 3 B 215 G Tuning Procedure 3 Setting the Idling Current 3 Measurement of Insertion Loss 4 Tuning the Amplifier 4 Setting the Tr...

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Page 3: ...l Unit The Mirage B 215 G is capable of FM SSB and CW operational modes Specifications Frequency range 144 to 148 MHz RF input power Drive 250 milliwatts to 5 Watts RF output power 150 Watts maximum w...

Page 4: ...at the factory To switch to minimum gain move the DIP switch located under the left side cover near the power supply leads to the UP position The switch may be accessed through the fourth slot from t...

Page 5: ...ier operational as they have already been completed at the factory Setting the Idling Current 1 Connect the amplifier to the dummy load before making any other connections to prevent damage 2 Lift one...

Page 6: ...watts FM or CW when keyed 4 Verify that there is no reflected power 5 Increase the power to 2 watts and measure the insertion loss through the relay contacts 6 With 2 watts injected the output watt m...

Page 7: ...ip Points 1 The next step is to set the Overdrive trip point at 5 to 7 watts This is accomplished by the selection of the proper trip diode ZD2 which is normally a IN755 If circuit trips too soon a 2p...

Page 8: ...n the relay after it is unkeyed Adjusting The Receive Preamp 1 Remove the input and output coax cables for the amplifier radio and antenna connectors MAKE SURE YOU TURN THE TRANSMIT RADIO OFF 2 Connec...

Page 9: ...Coaxial cables from radio to amplifier and amplifier to antenna d Output voltage of power supply e Power output of radio f Improper fuse rating Technical Assistance If you have any problem with this u...

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