Mirage B-310-G Instruction Manual
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Mirage B-310-G Instruction Manual

Vhf power amplifier
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Enlarged version
Mirage B-310-G
The Mirage B-310-G is a VHF power amplifier designed for the
144-148 MHz band. New features make it the most useful and
versatile amplifier available for the handheld transceiver.
Features include all mode compatibility (FM/SSB/CW), wrap-
around heat sink, high gain GaAsFET preamplifier, and 25O mW
to 8 watts input.
FEATURES
1. High output power of 100 watts
100 watts is achieved with 250 mW to 8 watts input.
2. All mode compatibility (FM/SSB/CW)
In the SSB mode the time constant of the Carrier
Operated Transmit (COX) 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 design
is used for excellent heat dissipation as well as a
new smart appearance.
4. Input power from 250 mW to 8 watts
With an input power of 8 watts maximum, the Mirage
B-310 -G is compatible with most modern handheld
transceivers.
5. GaAsFET receive pre-amplifier
A built-in low noise GaAsFET receive pre-amp enables you
to enjoy a more comfortable VHF QSO with weak
stations.
Mirage B-310-G Instruction Manual
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Summary of Contents for Mirage B-310-G

  • Page 1 Mirage B-310-G Instruction Manual Mirage B-310-G The Mirage B-310-G is a VHF power amplifier designed for the 144-148 MHz band. New features make it the most useful and versatile amplifier available for the handheld transceiver. Features include all mode compatibility (FM/SSB/CW), wrap- around heat sink, high gain GaAsFET preamplifier, and 25O mW to 8 watts input.

  • Page 2: Specifications

    Mirage B-310-G Instruction Manual SPECIFICATIONS FREQUENCY : 144 TO 148MHz RF INPUT : 250 mW - 8 WATTS RF OUTPUT : 100 WATTS TYPICAL DUTY CYCLE : INTERMITTENT (ICAS) MODES : FM SSB CW RECIEVE PRE-AMP : 18db TYPICAL KEYING...

  • Page 3: Power On/Off Switch

    Mirage B-310-G Instruction Manual 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 disengaging. This will prevent relay chatter as a result of working SSB or CW. In the FM mode the relay will operate normally and disengage once the transmit signal is dropped.

  • Page 4: Back Panel

    +13.V DC This port has two wires. The RED wire is for positive and incorporates a FUSE holder. The BLACK wire is for negative. The Mirage B-310-G amplifier will accept voltages of 12 to 15 volts DC. 10. RADIO The coax from your radio or exciter is connected to this port.

  • Page 5: Installation

    Mirage B-310-G Instruction Manual INSTALLATION The Mirage B-310-G may be mounted using the bracket supplied 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 heat-sink to any surrounding enclosure and an unobstructed flow from the front to back of the heat-sink.
  • Page 6 Mirage B-310-G Instruction Manual Wiring and Operation If it is necessary to extend the DC 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.

  • Page 7: Troubleshooting

    If the manual does not reference your problem or your problem is 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.
  • Page 8 Mirage B-310-G Instruction Manual B-310-G BOOSTER AMP. BLOCK CIRCUIT...
  • Page 9 Mirage B-310-G Instruction Manual SCHEMATIC...

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