[Elecraft] Strange RX (and TX) Occurance With K2

[Ken Wagner]

Hi Dave:
I think this is an OLD issue and if your K2 is later than s/n 3000, you
should NOT have this problem. This is the "wierd at one frequency" problem
and exists because at/near the frequency you cite the PLL freq and the VCO
freq are at the same freq. Coupling between these two oscillators can cause
the symptom you encountered. I'm pretty sure there is reference elsewhere on
the Elecraft web site, but if you download the instructions for upgrading
the K2 to Rev B, you will find the cure on page 5 entitled "PLL Frequency
Stability at 7182 kHz."
73, Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
----- Original Message -----
From: <DYARNES@aol.com>
To: <elecraft@mailman.qth.net>
Sent: Sunday, January 04, 2004 09:16
Subject: [Elecraft] Strange RX (and TX) Occurance With K2


| Last night I wandered up into the 40 meter phone band using my  K2.  There
| was a QSO going on right around 7184 khz.  But both stations sounded like
they
| had very bad AC on their signals.  Everything else on 40 meters sounded
fine,
| but on this freq. it was very distorted.  When I broke in, they said I was
| distorted!  I checked their signals with a small Sony portable receiver,
and they
| sounded fine.  Que Pasa?  Anyone else ever noticed this before?  I sure
| haven't.