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.

HFM2-5 Dimensional Drawing

Frequency:0.1 – 32MHz
Impedance:50 ohms
VSWR:<1.2: 1 (matched loads)
Insertion Loss:<0.3dB (matched load)
Isolation:>30dB (matched load)
Load VSWR:3:1 max
Weight:150kg approx
Notch Width:15%, 20%, 40% of cross over frequency
Cross Cover Frequency:Notch centre to be specified between 3-18MHz (lower notch centres available)
Environment:Outdoor unprotected -40°C to +55°C natural convection Silicone oil cooled natural convection
Connectors:7/8″, 1 5/8″ EIA, LC
Power:2 input channels each 20 kW average (40kW peak) 1 output channel 40 kW average (80kW peak)

Typical Response

Typical Response