Bill,
Both the signal 18kHz lower than your VFO as well as the chirp are
certainly not normal and may point to a problem with the synthesizer.
I would suggest you swap the synthesizer boards between the main and the
sub as a test, and if that cures it, you may have a simple fix of
contacting Elecraft to arrange a swap with the bad synth board.
OTOH, contact K3support if it is not fixed by the synth board swap.
73,
Don W3FPR
On 1/28/2016 2:25 AM, Bill Stravinsky via Elecraft wrote:
A friend of mine (100 miles away) recently noticed a dual signal being transmitted
from my K3 possibly coming to lightsince I went to high power. The problem has
surfaced when I xmit on 40 & 80 (don't know of other instances). Thereis a
duplicate signal 18khz lower on cw, reduced of course but pretty loud. The first
cw character starts out with a chirpbut cleans up after the transmission begins,
but still seems like its not a pure signal according to my good friend.
RADIO HISTORY: added the 2nd vfo, synth boards, newer dsp board, newer kio3
also had a K4 tell me I had strong dual signal in a recent contest (not sure
but might have been on 20 mtrs)
Any ideas on the cause(s)??
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