[Elecraft] Re: K3 Reference Oscillator

[Mike S]

At 11:59 AM 8/29/2007, wayne burdick wrote...
>49.380 MHz. All signal sources are phase-locked to the refernce. Fine 
>adjustment occurs in firmware, and once calibrated, it's accurate to 
>about 1 Hz through 6 meters at the calibration temperature. The 
>high-stability option is at the same frequency, with firmware 
>correction to better than 0.5 ppm.

49,380,000 * 0.0000005 ppm = 24.69 Hz, and actually worse on 6 meters, 
since it's a higher frequency. In any case, it's considerably worse 
that the 1 Hz stated for the standard reference. Is that ppm/degree C, 
over some temperature range, or ? Is the tempco specified for the 
standard reference?