[Elecraft] CP1 vs other directional coupler

[Jack Brindle]

It would be pretty easy to modify the CP-1 to use SO239 connectors and mount it in a box. I would do it while building the board - drill four holes in the corners for mounting, mount the SO-239s on the box and wire them to the board. But, I would also keep the BNC connectors for the test connections since Scopes and frequency counters usually have those for input jacks.

Interesting project. My CP-1 is built with the BNC connectors and usually have adapters attached for the TX IN and Out as needed. It’s a very handy board!

- Jack, W6FB


> On May 28, 2017, at 10:23 AM, Mike Markowski <mike.ab3ap at gmail.com> wrote:
> 
> I'd like to get a directional coupler to, among other things, monitor my transmit signal on a scope.
> 
> The Elecraft CP1 kit is priced well, but I'd want it in a metal box with panel mount connectors, SO-239 for the main RF path.  I'd also rather use 50 ohm terminators rather than switches, so at that point it probably makes sense to build my own.  Just curious what others have done and if there are recommendations for reasonably priced, commercially available directional couplers for HF at 100 W or more.
> 
> Tnx es 73,
> Mike ab3ap
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