Mine does that too. The VCO for a frequency around 14.360 MHz should
be running aabout 19.274 MHz and the reference oscillator runs at about
12.096 MHz. 2*19.274-2*12.096 = 14.356 MHz, so that seems to be the
culprit. It pops in because of the way the VCO is tuned. When you get
to the edge of
Michael Lewis wrote:
Worked a mobile station in TX, and then casually tuned up the band. I
actually tuned out of 20m by a little bit up to 14359 (14359.03 on the
display to be exact) and BAM! I got an S9 tone. It goes from totally
quiet to S9 as soon as the tuning display hits 14359.03.
With respect Kevin the 'culprit' responsible for this birdie in my K2 is the
(LO + IF) / 2 spurious response of the receiver which can 'hear' the PLL
reference oscillator. When the receiver is tuned to 14.360 MHz the frequency
of this particular response, assuming a 4.914 MHz IF, is (19.274 +
. This strong one was unavoidable and we
purposely adusted the synthesizer and bfo parameters to place it outside the
ham band.
73,
Eric WA6HHQ
_..._
-Original Message-
From: w9cf [EMAIL PROTECTED]
Date: Friday, Oct 17, 2008 12:29 am
Subject: Re: [Elecraft] Strange K2 Behavior
So I am patiently waiting for my K3 to ship (katiegram came end of last
week, Woohoo!) and so I have been using my K2 as the main station radio
after selling my IC-756Pro (still a great radio in its own right...)
Anyway, this evening I was trying to update my records after my latest batch
of
On Wed, 2008-10-15 at 19:34 -0600, Michael Lewis wrote:
band. I actually tuned out of 20m by a little bit up to 14359
(14359.03 on the display to be exact) and BAM! I got an S9 tone. It
goes from totally quiet to S9 as soon as the tuning display hits
14359.03. happens with no external antenna.
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