> > I wish Elecraft would give serial data frequency priority over RF detected > frequency until a difference threshold is exceed.
+1 73 de AI6KG On Thu, Nov 29, 2018 at 2:43 PM ANDY DURBIN <a.dur...@msn.com> wrote: > > "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:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c...@murgatroid.com > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
