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Mirage B-2516-G Quick Manual

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MIRAGE B-2516-G
GENERAL INFORMATION.......................................................................................................... 2
SPECIFICATIONS ....................................................................................................................... 2
INSTALLATION ........................................................................................................................... 3
Front Panel Switches/LED's............................................................................................ 3
Rear Panel Connectors................................................................................................... 3
Internal Adjustments ....................................................................................................... 4
TUNING PROCEDURE ............................................................................................................... 4
Visual Inspection & Initial Settings .................................................................................. 4
Setting the Idling Current ................................................................................................ 5
Measurement of Insertion Loss....................................................................................... 5
Tuning the Amplifier ........................................................................................................ 6
Setting the Trip Points..................................................................................................... 7
Adjusting The Receive Preamp....................................................................................... 8
TROUBLESHOOTING................................................................................................................. 9
Technical Assistance ...................................................................................................... 9
SCHEMATIC DIAGRAM .............................................................................................................. 10
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Summary of Contents for Mirage B-2516-G

  • Page 1: Table Of Contents

    MIRAGE B-2516-G TABLE OF CONTENTS GENERAL INFORMATION......................2 SPECIFICATIONS ........................2 INSTALLATION ........................... 3 Front Panel Switches/LED's.................... 3 Rear Panel Connectors....................3 Internal Adjustments ....................... 4 TUNING PROCEDURE ....................... 4 Visual Inspection & Initial Settings .................. 4 Setting the Idling Current ....................5 Measurement of Insertion Loss..................

  • Page 2: General Information

    Intermodulation Distortion caused by strong signals. Provision is made for automatic or remote (external) keying, and for remote control of all front panel functions using the Mirage RC-1 Remote Control Unit. The Mirage B-2516-G is capable of FM, SSB, and CW operational modes.

  • Page 3: Installation

    MIRAGE B-2516-G INSTALLATION The Mirage B-2516-G may be mounted using the brackets (supplied when request is returned via warranty card) or simply placed in a convenient operating position. In either case, there must be adequate ventilation for the finned heat-sink. This generally means at least 1 inch clearance from the sink to any surrounding enclosure and an unobstructed flow from the front to the back of the sink.

  • Page 4: Internal Adjustments

    MIRAGE B-2516-G Internal Adjustments SSB DELAY: This allows the R.F. relay "hang-time" or delay to be adjusted to the time desired. PRE-AMP ATTENUATOR SWITCH: Sets the pre-amp gain to full or reduced value. INPUT VSWR AND OUTPUT POWER: These adjustments are made at the factory and should not require field adjustment.

  • Page 5: Setting The Idling Current

    MIRAGE B-2516-G Setting the Idling Current Connect the amplifier to the dummy load before making any other connections to prevent damage. Lift one end of the input voltage protection fuse from its socket. Ensure that your DC voltage from the power supply is off.

  • Page 6: Tuning The Amplifier

    MIRAGE B-2516-G Tuning the Amplifier NOTE: Key-up by applying RF during test only. While tuning & testing, always observe current draw, spectrum analyzer and input VSWR. Key the exciter radio and adjust the output power to 10 watts FM or CW.

  • Page 7: Setting The Trip Points

    MIRAGE B-2516-G Setting the Trip Points The next step is to set the Overdrive trip point at 40 to 45 watts. This is accomplished by the selection of the proper trip diode ZD2, which is normally a 1N5252. If circuit trips too soon, a 2pf capacitor (C3) may be placed at junction of R1-C1 from strip line to ground of circuit board.

  • Page 8: Adjusting The Receive Preamp

    MIRAGE B-2516-G Adjusting The Receive Preamp Remove the input and output coax cables for the amplifier radio and antenna connectors. MAKE SURE YOU TURN THE TRANSMIT RADIO OFF. Connect a coax from signal generator through a 5 dB pad to output connector on antenna connector of amplifier.

  • Page 9: Troubleshooting

    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.

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