[Elecraft] [K2] Two questions

[Randy Moore]

Just installed the 160m module in a friend's K2 and made a couple of 
observations.

1.  I assume this is working as designed (and has nothing to do with 
installing the 160m module), but I found that the antenna setting 
(ANT1/ANT2 from the KAT2 that was already in the radio) is not always 
remembered over a power cycle.  It looks like it is saved if I switch 
bands after setting the antenna and then doing a power cycle, but 
otherwise it reverts to the previous setting.  My K2 does the same 
thing, so I don't think its anything about my fiend's K2. So what are 
the rules about saving ANT1/ANT2 over a power cycle?  Both K2's are 
running the same firmware (2.04).

2. This one may be a problem.  I was testing the 160m module.  At power 
settings below around 8w, all is well.  Above 8w, after sending a few 
characters of CW then stopping, there's about a 0.5s delay and then 
there's a crash of static that also lasts about 0.5s.  This is 
definitely in sync with my transmission and not atmospheric in nature. 
I checked the power supply voltage under load (from the K2's voltage 
readout) and around the 8w level, it was running around 12.2 volts. 
This was from a battery.  I changed to my regular power supply, which 
the K2 shows as about 12.6v under the 8w load, and the static crash goes 
away.  What would cause this behavior with source voltage near 12v, and 
is there something I can do about it in the K2?

Otherwise, my friend's K2 is working great!  I need to play with mine 
more often and let the K3 take a rest!  :-)

Thanks!

73,
Randy, KS4L