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Written by xek (👻🏴‍☠️👻) on 2024-11-25 at 03:58

Does anyone know a name for the circuit that MFJ uses (used? 😢) for their SWR meters? Or, even better, an article walking through the theory of operation? I can't seem to find it in the places I'd expect to, and I'm having trouble wrapping my head around it.

This directional coupler seems … unexpected.

Thanks in advance for any insight here!

[#]hamradio

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