[Elecraft] P3 TX Monitor

[Dave AD6A]

The Elecraft directional couplers have more than just couplers in them - at
a minimum, they have forward and reverse (diode) power detectors as well,
and most likely some analog electronics.

The coupler connects to the P3 using a 4-pair twisted pair cable with RJ-45
connectors on each end. 

You might be able to reverse engineer one, but a) why bother? (the Elecraft
product is priced about right), and b) you might find that no one will lend
you one to reverse engineer the coupler interface. 

Cheers,
Dave AD6A

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John
Lemay
Sent: Wednesday, January 25, 2017 1:02 AM
To: Elecraft Reflector Reflector <elecraft at mailman.qth.net>
Subject: [Elecraft] P3 TX Monitor

I'm considering adding the TX Monitor to my P3. Can I use my own directional
coupler for UHF/SHF, or is it essential to use the Elecraft RF Sensor ?

Thanks

John G4ZTR

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