Mirage B-320-G Instruction Manual

Mirage B-

320

-G Instruction Manual

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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

Mirage B-

320

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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.

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
INPUT/OUTPUT IMPEDANCE : 50 OHMS

Mirage B-

320

-G Instruction Manual

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EXPLANATION OF FEATURES

FRONT PANEL

1. OUTPUT POWER LED

2. MODE LED

3. 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.

4. PWR LED
If the LED is in the off position the amplifier will pass the
RF in a straight through mode. This means that 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 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.