[Elecraft] Slight K2 Drift When on PSK31

[Lynn and Les]

I have now operated K2 S/N 4751 for about a month and everything seems to
work pretty good. I am mainly a PSK and RTTY operator and I would like to
know if others have had the same experience about the K2 with PSK.

The narrow band width with PSK requires a stable radio. I see sporatic cases
on receive where a station transmits a "waterfall" line and then stops to
receive a signal. When the station restarts transmitting again, the K2
receiver has drifted about 1/3 the width of the average waterfall line. This
drift (10-20 HZ I think) requires me to reclick on the waterfall line to
recenter the cursor so Digipan 1.6 can continue to decode the "waterfall
line" information. Last night , I got a similar report on transmit as well.
The effect appears sporatic. Right now, this is an bother - not a fatal
defect, BUT my old ICOM 706MIIG never exhibited this drift . So has anybody
seen this effect before. Obviously, CW, SSB and RTTY seem unaffected by this
drift.

* Is this drift normal for the K2?

* If not, can I reposition the thermal sensor card (i.e., tilt it slightly)
to get better performance?

* Also, at what power levels do most people run a barefoot K2 in PSK? (I get
slight heating of the heat sink (~100F) and I am thinking that the heat
effects the PLL)?

73,

Les WA3SGZ