Alan, I'm using QSK not semi break in. Does that matter at all? Interesting usage of it though!
Gary W2CS > -----Original Message----- > From: Alan Bloom [mailto:[email protected]] > Sent: Wednesday, October 13, 2010 2:04 PM > To: Gary Ferdinand > Cc: Elecraft > Subject: Re: [Elecraft] P3 - Displaying my signal > > The P3 is supposed to freeze when the K3 is transmitting. However, > when > the K3 is set for CW semi break in, it unfreezes after the first > character. This is a bug not a feature. :=) > > If you would like to view your transmitted signal for test purposes, > you > can do it by temporarily disconnecting the RS-232 cable to the K3. > That > disables the freeze-on-transmit function. What you are viewing is > stray > IF leakage coming out the K3's IF OUT connector. The signal level is > rather low and varies with drive level, frequency band, and the > particular K3. > > However, I do find it useful for adjusting the transmit equalizer. > With > my K3 set for SSB, I turned on peak hold on the P3 and talked into the > mic for a few seconds. The peak value is a fair representation of the > transmitted spectrum. I could see that it was way too bassy (low audio > frequencies stronger than the highs) which results in a muddy-sounding > signal that lacks "punch". It took maybe 5 minutes playing around with > the K3 TX equalizer to get a nice flat spectrum. > > Alan N1AL > > > On Wed, 2010-10-13 at 13:22 -0400, Gary Ferdinand wrote: > > A new feature seems to have appeared with my K3/P3 combo, both > factory > > assembled. Whenever I key the K3 on an empty daytime 80 meter band, > I get a > > narrow, but strong waveform down about 300-400 Hz from the marked > carrier > > frequency. If I hold key down for a few seconds the spike builds to > about > > -80dBm from a noise base of about -130dBm. I searched the archives > but > > all I saw was something about a phantom signal. This is not phantom > at all. > > Of course it also shows brilliantly in the waterfall display. > > > > I have checked that all cables and power connected to both units are > well > > attached. Also, this feature appears to be new, have been created > overnight > > by Murphy. All suggestions welcome. Thanks. > > > > Gary W2CS > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:[email protected] > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
