RE: [Elecraft] Fw: C22

2006-07-18 Thread Don Wilhelm
Gordon, During operation of the K2, the reference oscillator is not used except as the oscillator for the microprocessor - so there will be no observed effect from changing the C22 setting. During the calibration steps (for an accurate CAL FCTR reading, and before running CAL PLL or CAL FIL), the

Re: [Elecraft] Fw: C22

2006-07-18 Thread Vic K2VCO
Gordon Gibson wrote: a local pal who has recently built a K2 has found the same problem when he built his K2 he calibrated C22 okay but now finds that moving C22 does nothing I have studied the circuit and I just can not figure out why this should be so The exact frequency of the 4 MHz oscil

[Elecraft] Fw: C22

2006-07-18 Thread Gordon Gibson
Hi Elecrafter's When I built my K2 #2746 4 years back now I set C22 near enough using an external frequency counter, then last year I added the SSB board, I noted that I was about 200 Hz high as I do not work near band edges I left it at that, but recently decided I would get it a bit nearer h