[Elecraft] Re: K2 fan turns on high with CW QSO 22 watts

[Wayne Burdick]

Michael Harris wrote:

> I eventually took the KPA100 and fitted it externally with the KAT100.
> Makes a nice unit and keeps 40C air out of the K2.  The basic K2 is pretty
> stable without the KPA100 fitted but takes a little while to settle with the
> KPA100 lid on.
> 
> I have fitted the BFO and PLL stability modes just for the sake of it, my K2
> is #1400, yours might not need them.

Hi Mike,

You're correct: with the BFO and PLL mods in place, the K2 with KPA100 mounted
internally should be very stable. All K2's with serial number 3446 and higher
have both included with the kit. K2's with s/n 3000 and higher include the BFO
mod, but should also have the PLL upgrade installed if the operator plans to put
in a KPA100. K2's with s/n 2999 and lower will need both mods if a KPA100 is
installed (recommended).

73,
Wayne
N6KR