Mirage B-320-G Instruction Manual
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Mirage B-320-G Instruction Manual

Power amplifier
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Mirage B-320-G
The Mirage B-320-G is a VHF power amplifier designed for 2
meters covering 144-148 MHz. The "Hi" and "Lo" input selector
switch makes this amp useable for both handheld and mobile
transceivers. Features include all mode compatibility
(FM/SSB/CW), wrap-around heat sink, high gain GaAsFET
preamplifier, and user selectable input:
--"Lo" for Handheld radios-- 250 mW to 10 Watts
--"Hi" for Mobile radios-- 10 Watts to 50 Watts
FEATURES
1. High output power of 200 watts
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 design
is used for excellent heat dissipation as well as a
new smart appearance.
4. "Lo" Input power from 250 mW to 10 Watts
With an input power of 10 Watts maximum on "Lo" , the
Mirage B-320-G is compatible with most modern
handheld
and mobile transceivers.
5. "Hi" Input power from 10 Watts to 50 Watts
320
Mirage B-
-G Instruction Manual
-1-

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Summary of Contents for Mirage B-320-G

  • Page 1 Mirage B- -G Instruction Manual Mirage B-320-G The Mirage B-320-G is a VHF power amplifier designed for 2 meters covering 144-148 MHz. The “Hi” and “Lo” input selector switch makes this amp useable for both handheld and mobile transceivers. Features include all mode compatibility...

  • Page 2: Specifications

    Mirage B- -G Instruction Manual With an input power of 50 Watts maximum on “Hi” , the Mirage B-320-G is compatible with most modern mobile transceivers. 6. 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.

  • Page 3: Mode Led

    Mirage B- -G Instruction Manual EXPLANATION OF FEATURES FRONT PANEL OUTPUT POWER LED MODE LED PRE-AMP LED The PRE-AMP LED will illuminate when the pre-amp is engaged. The pre-amp can be used independently even if the amplifier's power is off.

  • Page 4: Power On/Off Switch

    Mirage B- -G Instruction Manual 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.

  • Page 5: Back Panel

    Mirage B- -G Instruction Manual BACK PANEL INPUT POWER 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.

  • Page 6: Installation

    Mirage B- -G Instruction Manual INSTALLATION The Mirage B-320-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 7: Troubleshooting

    Mirage B- -G Instruction Manual TROUBLESHOOTING The Mirage B-320-G is designed for long, trouble-free performance and should not require extensive 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.

  • Page 8: Technical Assistance

    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 9: Communication Equipment

    Any Mirage Communications product found to be defective in materials or workmanship will be repaired or replaced (at Mirage’s option) for a period of one year from the date of original purchase. During the warranty period Mirage Communications will provide, free of charge, both parts and labor necessary to correct defects in material or workmanship.
  • Page 10 Mirage B- -G Instruction Manual SCHEMATIC -10-...

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