[Elecraft] K1 Future Improvements to VFO D3, R17, R18 any one tried??

[Don Wilhelm]

Paul,

I would not regard 100 Hz of drift in the K1 as a design problem at all -
The K1 spec is for drift less that 200 Hz after a 5 minute warmup.

The fact that the K1 does not use a DDS vfo is not a 'design problem' as was
stated, but surely was a design decision based on price/performance with
components available at the time it was designed.  At the time the K1 was
designed, DDS units were not as available as today and were still quite
pricy - by the time the KX1 was designed, the cost of DDS had dropped
significantly.  I fail to understand how anyone could refer to this a
'design problem'.

73,
Don W3FPR

> -----Original Message-----
...snip... I would be Very supprised if you still say the K1 has no drift,
> one interesting thing is that the drift aways seem down in freq after the
> first few mins, from cold the first 2-3mins produce a up drift of 10-40 hz
> before drifting down, I find about 100Hz drift after the first 5
> mins in one
> > possible drift modhour. Also while doing the above test put a load on
the k1 and put the key
> down for 10 sec or so and see what happens when you go back to receive.
> In practice I don’t find it any problem at all after the first 5mins but
> since elecraft have taken the time to print details about
> im sure even they will accept that its not a defect in an
> individuals radio
> but a design problem using a none DDS vfo. If you do a lot of
> tuning around
> like many do in a contest and your QSO's are contest type (i.e.
> very short)
> you will never notice this drift im sure! The display on the K1 still
> indicates the correct freq at all times.
>
> Regards
> Paul
> M0BMN
>
>