Codan Radio Communications VT-3-150-SN User Manual

VHF Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz

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The following is a  general  set  of  specifications  for  the  generic  VT-3/150  transmitter.  Additional
specifications, specific to individual modules may be found in their respective submanuals.

Type:

MT-3 Series Transmitter.

Family:

VT-3/150.

Compatibility:

MT-2 Series and MT-3 Series Radio Systems.

Frequency Range:

132 to 174 MHz.

RF Power Output:

Adjustable: 0.5 to 2.0 W and 2.0 to 8.0 W.

Modulation:

11K0F3E or 16K0F3E (Frequency Modulation).

System Impedance:

50 

Ω

; Type N connector.

Duty Cycle:

100%; Continuous operation from -40°C to +60°C.

Spurious Emissions:

More than  80 dB below carrier.

Harmonic Emissions:

More than  90 dB below carrier.

Transmitter Mismatch Protection:

20:1 VSWR at all phase angles.

Transmitter Alarm:

Forward power sense and reverse VSWR;
• open collector output (separate or 'OR'ed
configuration);
• linear output (separate lines only).

Operating Temperature Range:

-30˚C to +60˚C, optional -40˚C temperature test.

Operating Humidity:

95% RH (non-condensing) at +25°C.

Operating Voltage:

+13.8 Vdc Nominal (range +11 to +16 Vdc),
+9.5 Vdc Regulated.

Transmit Current:

2.5 Amps at 8 Watts RF Power Output.

Front Panel Controls:

NORM (repeat mode), OFF, and KEY TX (Tx on).