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VHF Power Amplifier - 25 Watt

11-54-0000

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

The 11-54 has a switching bandwidth of 5MHz with 20Watts minimum output. In receive mode, the 11-54 will pass a receive signal with less than 1dB attenuation. 

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

The 11-54 power amplifier operates over the frequency range 138-162MHz and with 4-5 watts input it will deliver 25 Watts. It 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. The 11-54 will operate satisfactorily down to 400mW drive but the PTT connection must be grounded to operate the receive to transmit changeover.

A 2dB 50 Ohm input matching pad allows for connection to a wide range of driving devices and mis-tuning without the risk of instability.

In the receive mode it will pass a receive signal with less than 1dB attenuation.

The 3 stage aerial filter attenuates all spurious emissions to less than -30dBm.

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

The green Power LED operates at all times with power connected and the red Transmit LED operates only when the 11-54 is switched to the transmit mode (PTT activated).

  • VHF
  • Operates over range 138-162MHz
  • With 4-5 watts input it will deliver 25 Watts.
  • Switching bandwidth of ±5MHz with 20 Watts minimum output.
  • Operates satisfactorily with down to 400mW
  • A 2dB 50 Ohm input matching pad allows for connection to a wide range of driving devices
  • Will pass a receive signal with less than 1dB attenuation.
  • The 3 stage aerial filter attenuates all spurious emissions to less than -30dBm.
  • Protected against accidental power connection reversal.
Technical Specifications
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% at 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 50 Ohm 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)
11-54-0000 Product Brochure
11-54-0000 Product Manual
  • Information

    The 11-54 power amplifier operates over the frequency range 138-162MHz and with 4-5 watts input it will deliver 25 Watts. It 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. The 11-54 will operate satisfactorily down to 400mW drive but the PTT connection must be grounded to operate the receive to transmit changeover.

    A 2dB 50 Ohm input matching pad allows for connection to a wide range of driving devices and mis-tuning without the risk of instability.

    In the receive mode it will pass a receive signal with less than 1dB attenuation.

    The 3 stage aerial filter attenuates all spurious emissions to less than -30dBm.

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

    The green Power LED operates at all times with power connected and the red Transmit LED operates only when the 11-54 is switched to the transmit mode (PTT activated).

  • Details
    • VHF
    • Operates over range 138-162MHz
    • With 4-5 watts input it will deliver 25 Watts.
    • Switching bandwidth of ±5MHz with 20 Watts minimum output.
    • Operates satisfactorily with down to 400mW
    • A 2dB 50 Ohm input matching pad allows for connection to a wide range of driving devices
    • Will pass a receive signal with less than 1dB attenuation.
    • The 3 stage aerial filter attenuates all spurious emissions to less than -30dBm.
    • Protected against accidental power connection reversal.
  • Specifications
    Technical Specifications
    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% at 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 50 Ohm 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)
  • Manuals & Downloads
    11-54-0000 Product Brochure
    11-54-0000 Product Manual