[Elecraft] Temperature stability (and other questions)

[Adam, N1KO]

Hi all,
 
I'm down here with trusty # 3547 in HC land.  I've been making lots of QSO's and am extremely happy with the rig.
 
One thing that I've noticed along the lines of recent comments on the listserv about C22 frequency calibration--the temperature stability of the rig seems to also be problematic for me.  I don't know what experience others are having and I am curious.  I have the KDSP2, KPA100, K160RX and KSB2 installed, plus the temperature stability mod that came with my rig.
 
Whenever I'm operating high power and the rig's cabinet heats up I notice a downward frequency drift in the VFO of approx. 50-80 Hz.  I don't know if this is within the range of what is acceptable with the stability mod, but if this is what you get with it, I can't imagine what it was like before!  If I need to change a value on the board I think it would be hard to implement here in Ecuador right now, but I would like to know for my reference for when I return to the states.
 
This is my only complaint.  I am able to zero-beat C22 fairly easily by tuning to WWV or the BBC in CW mode and matching the carrier tone to my sidetone offset.  Then CAL PLL and FIL.  It's just that I do this calibration at room temperature...under real heavy operating conditions the VFO invariably drifts enough for it to be a little annoying on CW, but then again, technically you should zero beat every signal on an individual basis anyway.
 
Just for the record, look for me QRV early in the morning (11:00 UTC) or in the eve (01:00 - 04:00 UTC) as HC1/N1KO.  Favored operating frequencies are 7.027, 10.110, 14.028 CW.  QSL via W1ZS.
 
Also, what are the checkin times for the Elecraft net?  I'd love to be the first HC checkin.
 
Cheers,
 
Adam, N1KO


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