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HFM2-5 – 2 x 5 kW HF Transmitter Multicouplers

HFM2-5 – 2 x 5 kW HF Transmitter Multicouplers

Transmitter multicouplers utilizing 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.

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

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