P3 - use as a transmit monitor

[G3TCT]

Several writers have commented that it would be very useful to be able
to monitor one's transmission using the P3.  Well it is possible,
although it's not something you'd want to do all the time.  I've
detailed how to do it and shown some results on my page here:-

http://www.g3tct.co.uk/P3.html

73
Graham
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[Igor Sokolov-2]

I thought this might be interesting for the group. It shows what can be done
by a good operator with K3 and Buddipole antenna only 3.5 meters high, from
the right location.

http://pileup.ru/search.php?call=CT9/R9DX%20%20%20%20&year=2013&contest_short=cqww_ssb

Vadim, R9DX has won a place in WRTC 2014 from zone 17 and went to Madeira to
have some practice in US SSB pileup to get prepared for WRTC.

73, Igor UA9CDC

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[Alan Bloom-2]

Cool Graham!

Actually there's an easier way to do it.  In the "Xcvr Sel" menu item,
select the last item in the list "0 Hz."  The P3 frequency now reads the
actual RF frequency and you can tune it by HOLDing the CENTER control on
the front panel and then turning the knob.  (You may have to change the
"Center En" menu entry to "ON.")

The tuning rate in CENTER mode is proportional to span.  Set the span to
maximium to tune quickly and then narrow the span to zero in on the signal.

CAUTION:

Be careful when the P3 is connected to anything other than the K3 IF out
because the P3 IF input is not protected against static discharge.  I
would recommend putting a pair of back-to-back diodes in parallel across
the input.  If you don't want to modify the P3 you can solder the diodes
to a BNC male connector and connect it and the antenna to the P3 using a
BNC "T" adapter.

Alan N1AL


On 10/28/2013 12:26 PM, Graham Kimbell G3TCT wrote:

> Several writers have commented that it would be very useful to be able
> to monitor one's transmission using the P3.  Well it is possible,
> although it's not something you'd want to do all the time.  I've
> detailed how to do it and shown some results on my page here:-
>
> http://www.g3tct.co.uk/P3.html
>
> 73
> Graham
> ______________________________________________________________
> 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
>
>

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