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UHF Power Amplifier - 25 Watt

11-99-0000

The 11-99 power amplifier has two variants to cover the UHF frequency bands.

Model 11-99-1000 covers 400-440MHz & model 11-99-2000 covers 450-500MHz

With 4-5 watts input both are designed to deliver 25 Watts output.

Both cover the full switching bandwidth without retuning with 20 Watts minimum output.

The 11-99 is protected against accidental power connection reversal. 

The 11-99 power amplifier has two variants to cover the UHF frequency bands. 11-99-1000 covers 400-440MHz & 11-99-2000 covers 450-500MHz and with 4-5 watts input both are designed to deliver 25 Watts output. Both cover the full switching bandwidth without retuning with 20 Watts minimum output.

The power sense operates with a minimum of 1 watt input and switches both the power and aerial relays. The 11-99 will operate satisfactorily with down to 1W input power and will give approximately 10 Watts out.

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

In the receive mode it will pass a receive signal with less than 2dB attenuation. The high pass filter is in circuit in the receive mode.

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

The 11-99 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 11-99 is switched to the transmit mode (PTT activated).

  • UHF
  • Operates over range 400-440MHz (model 1000)
  • Operates over range 450-500MHz (model 2000)
  • With 4-5 watts input it will deliver 25 Watts.
  • Switching bandwidth without retuning.
  • Will pass a receive signal with less than 2dB attenuation.
  • The 3 stage aerial filter attenuates all spurious emissions to less than -30dBm.
  • Protected against accidental power connection reversal.
Specifications
Frequency Range 400-440MHz - UHF (Model No. 11-99-1000)
450-500MHz - UHF (Model No. 11-99-2000)
Frequency Selection Factory preset
Power Supply +13.8V typical (11 to 15 VDC range)
Power Consumption Standby: 4mA
Normal Operation: 4.5A
Maximum: 6A @ 25W output
Transmit Power 25W @ 4W input; 18W @ 2W Input; 10W @ 1W Input approx
Transmit Duty Cycle 50% at 25 Watts; Maximum 1 minutes on time
Switching Bandwidth 50MHz, 20 Watts minimum with 4 Watts input
Transmit Enable Power sense circuit operates relay (1W min)
Receive Mode 50MHz, 20 Watts minimum with 4 Watts input
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
11-99-0000 Product Brochure
11-99-0000 Product Manual
  • Information

    The 11-99 power amplifier has two variants to cover the UHF frequency bands. 11-99-1000 covers 400-440MHz & 11-99-2000 covers 450-500MHz and with 4-5 watts input both are designed to deliver 25 Watts output. Both cover the full switching bandwidth without retuning with 20 Watts minimum output.

    The power sense operates with a minimum of 1 watt input and switches both the power and aerial relays. The 11-99 will operate satisfactorily with down to 1W input power and will give approximately 10 Watts out.

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

    In the receive mode it will pass a receive signal with less than 2dB attenuation. The high pass filter is in circuit in the receive mode.

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

    The 11-99 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 11-99 is switched to the transmit mode (PTT activated).

  • Details
    • UHF
    • Operates over range 400-440MHz (model 1000)
    • Operates over range 450-500MHz (model 2000)
    • With 4-5 watts input it will deliver 25 Watts.
    • Switching bandwidth without retuning.
    • Will pass a receive signal with less than 2dB attenuation.
    • The 3 stage aerial filter attenuates all spurious emissions to less than -30dBm.
    • Protected against accidental power connection reversal.
  • Specifications
    Specifications
    Frequency Range 400-440MHz - UHF (Model No. 11-99-1000)
    450-500MHz - UHF (Model No. 11-99-2000)
    Frequency Selection Factory preset
    Power Supply +13.8V typical (11 to 15 VDC range)
    Power Consumption Standby: 4mA
    Normal Operation: 4.5A
    Maximum: 6A @ 25W output
    Transmit Power 25W @ 4W input; 18W @ 2W Input; 10W @ 1W Input approx
    Transmit Duty Cycle 50% at 25 Watts; Maximum 1 minutes on time
    Switching Bandwidth 50MHz, 20 Watts minimum with 4 Watts input
    Transmit Enable Power sense circuit operates relay (1W min)
    Receive Mode 50MHz, 20 Watts minimum with 4 Watts input
    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
    11-99-0000 Product Brochure
    11-99-0000 Product Manual