CP1 vs other directional coupler

[Mike Markowski-2]

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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[Elecraft mailing list]

These guys have several. Well built. Not cheap.  http://www.preciserf.com
 
Mike KD8RQE
 
 
In a message dated 5/28/2017 1:25:49 P.M. Eastern Daylight Time,  
[hidden email] writes:

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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[Michael Walker]

Would this work?  It comes with N connectors

http://www.ebay.com/itm/Mini-Circuits-ZFDC-20-4-N-Coaxial-Directional-Coupler-1-1000MHz-/263005332237?hash=item3d3c56e30d:g:YS4AAOSwK6RZKIqL

Mike va3mw

On Sun, May 28, 2017 at 8:39 PM, Mike via Elecraft <[hidden email]
> wrote:

> These guys have several. Well built. Not cheap.  http://www.preciserf.com
>
> Mike KD8RQE
>
>
> In a message dated 5/28/2017 1:25:49 P.M. Eastern Daylight Time,
> [hidden email] writes:
>
> 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
> ______________________________________________________________
> Elecraft  mailing list
> Home:  http://mailman.qth.net/mailman/listinfo/elecraft
> Help:  http://mailman.qth.net/mmfaq.htm
> Post:  mailto:[hidden email]
>
> This list hosted by:  http://www.qsl.net
> Please help support this email list:  http://www.qsl.net/donate.html
> Message delivered to  [hidden email]
>
> ______________________________________________________________
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>
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>

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[Jack Brindle-2]

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 <[hidden email]> 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
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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