Products
VHF Power Amplifier - 25 Watt (11-54-0000)
Operating over a frequency range of 138MHz to 162MHz, 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).
| 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 | Matte black |
| Type Approvals | AS 4295: 1995 |
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).
| 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 | Matte black |
| Type Approvals | AS 4295: 1995 |
