>
> "In addition the tuner may not always be in the segment you think it is.
> This is due to the 8KHz resolution of the internal counter, that wins over
> you sending it a more accurate frequency, and also the hysteresis algorithm
> that can require a 2 segment frequency change before the tuner changes.
> Gary from Elecraft says "if you are off by one bin segment then it should
> not matter too much"
>
>
> I have the same frustration with my KAT500 tuner. I send it a frequency
> with 1 kHz resolution ( I was using 1 Hz resolution but found that was
> futile) but it wants to override that frequency with a much less accurate
> RF derived frequency. I suggested to Elecraft that the frequency received
> over the serial interface should have priority unless the RF detected
> frequency differed by more that a user set threshold. That proposal was
> rejected on the basis that here cannot be two master frequency sources.
> That argument was lost on me since I have worked in the development of
> avionics systems where master swaps are common and dynamic data source
> selection is also common.
>
> I settled for sending my KAT500 a new frequency any time the actual
> transmitted frequency differs from the KAT500 reported frequency by more
> than 8 kHz. I have also tweaked FCCS and FCMD (not easy because they
> don't seem to work as documented) to make is less likely that RF detected
> frequency will usurp my serial data frequency at least for CW transmissions.
>
> I spent a fair bit of time manually selecting L and C to get a near
> perfect match in the band segments I use. I find it frustrating that the
> KAT500 firmware thinks it can do better than what I tell it to do.
>
> I wish Elecraft would give serial data frequency priority over RF detected
> frequency until a difference threshold is exceed. It would not be
> difficult to do.
>
> Andy, k3wyc
>
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home:
http://mailman.qth.net/mailman/listinfo/elecraft> Help:
http://mailman.qth.net/mmfaq.htm> Post: mailto:
[hidden email]
>
> This list hosted by:
http://www.qsl.net> Please help support this email list:
http://www.qsl.net/donate.html> Message delivered to
[hidden email]
>