HFM2-5 – 2 x 5 kW HF Transmitter Multicouplers

Transmitter multicouplers utilising low loss filter networks enable multiple transmitters to work into a common antenna.

Computer aided design techniques provide optimum performance from passive LC circuits which allows transmitters to work at 15% frequency separation.

System losses are low, typically less than 0.3 dB and rejection of the adjacent transmitter greater than 30 dB.

Frequency0.1 – 32MHz
Impedance50 ohms
VSWR<1.2: 1 (matched loads)
Insertion Loss<0.3dB (matched load)
Isolation>30dB (matched load)
Load VSWR3:1 max
Weight150kg approx.
Notch Width15%, 20%, 40% of cross over frequency
Cross Cover FrequencyNotch centre to be specified between 3-18MHz (lower notch centres available)
EnvironmentOutdoor unprotected -40ºC to +55ºC. Silicone oil cooled natural convection
Connectors7/8″, 1 5/8″ EIA, LC
Power2 input channels each 20 kW average (40kW peak) 1 output channel 40 kW average (80kW peak)