[Elecraft] K3/P3 frequency offset

Dave Hachadorian k6ll.dave at gmail.com
Mon Jun 10 12:58:10 EDT 2013


In the VHF Contest this past weekend, I frequently noticed a 
frequency offset between the P3 cursor, and where signals 
actually appeared in the headphones.

I tried to reproduce the condition this morning, and think I 
succeeded.  The following describes what was happening.

I was flipping between SSB and CW, using quick-memory buttons M1 
and M2.  M1 and M2 were memorized with RIT OFF.

If the RIT is manually turned on, and an RIT offset is dialed in, 
and then you hit M1 or M2,  the P3 cursor becomes offset by the 
amount of the RIT offset, even though RIT has now been turned OFF 
by hitting M1 or M2.  The only solution that I could find during 
the contest was to cycle power on the P3.  That was pretty 
aggravating.

Experimenting further this morning, I see that if M1 and M2 are 
programmed with RIT ON, any RIT offset carries over when modes 
are switched, and there is no frequency error when the RIT is 
zeroed.  I'll do it that way from now on, but it was driving me 
batty during the contest.

Dave Hachadorian, K6LL
Yuma, Arizona 



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