Fw: [Elecraft] K1 stability

[Mike Morrow]

>I know the specs say < 200 Hz / hour but I'm really hoping to see
>less than 100 Hz per month, kind of thing

Pardon me for asking, but is this a realizable goal (3 ppm/month at 28 MHz
over an unspecified temperature range) for the K1 frequency system which
consists of a crystal hetrodyne oscillator, crystal product
detector/transmit mixer oscillators, and LC VFO, none of which are
temperature controlled or compensated?  Would it be realizable for your K2?
Would it even be realizable for a FT-1000??

Even commercial DDS/PLL rigs don't come close without some sort of TXCO.

I guess I have my doubts.

73,
Mike / KK5F