11-54-0000 VHF Power Amplifier
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11-54-0000 VHF 25W Power Amplifier

Operates over the range 138-162MHz and with 4-5 watts input it will deliver 25 Watts. Switching bandwidth of ±5MHz with 20 Watts minimum output.
Description

Description

Operating over a frequency range of 138MHz to 174MHz, the Salcom 11-54  Power Amplifier provides up to 25 Watts of power from a 4 Watt input.

The 11-54 has a switching bandwidth of 5MHz with 20 Watts minimum output.

The power sense operates with a minimum of 3 Watts input and switches both the power and aerial relays.  It will operate satisfactorily with down to 400mW drive, but the PTT connection must be grounded to operate the receive and transmit changeover.

A  2dB 50Ω input matching pad allows connection to awide range of devices, and provides high tolerance to mis-tuning without the risk of instability.

In the receive mode, the 11-54 will pass a receive signal with less than 1dB attenuation.

The three stage aerial filter attenuates all spurious emissions to less than -30dBm.

The 11-54 is protected against accidental power connection reversal.

The green LED operates at all times with the power connected, and the red transmit LED operates only when the 11-54 is switched to the transmit mode.

Specifications

Technical Specification

11-54-0000 VHF 25W Power Amplifier
Frequency Range 138-162MHz - VHF
Frequency Selection Factory preset
Power Supply +13.8V typical (11 to 15 VDC range)
Power Consumption Standby: 4mA
Normal Operation: 4A
Maximum: 5A @ 25W output
Transmit Power 25W @ 5W input
Transmit Duty Cycle 50% 25 Watts
Power Input PA Receiver Switching = 3W min
PA Only = 0.4W min for 10W output typical
Switching Bandwidth PA Receiver Switching = ±5MHz, 20W min with 4W input
PA Only = ±5MHz, 20W min with 4W input
Transmit Enable PA Receiver Switching = Power sense circuit operates relay
PA Only = Ground PTT, 3mA source
Connectors PTT - 2 way plug & socket, screw connections (supplied)
Power Connector 2-way plug & socket, screw connections (supplied)
RF Connector 50Ω BNC (both Input and Output)
Environmental Protection Not suitable for outdoor use and should be protected from adverse environmental conditions
Operating Temperature -10ºC to +60ºC (+14ºF to +140ºF)
Indicators

Power LED (Green)

   - Solid On = Normal Operation
Status LED (Red)

   - Solid On = Active Signal Present
Weight 400g
Enclosure Dimensions 100mm x 130mm x 30mm (WxDxH)
Enclosure Material Extruded aluminium
Colour Matt black
Type Approvals AS 4295: 1995 (RF)

Downloads

Product Brochure 11-54 Product Brochure
User Manual 11-54 Product Manual
Configuration Tool N/A

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