I have seen a lot of answers. These are all true, but what is the exact way of working.
73 Henk -----Oorspronkelijk bericht----- Van: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> Namens Wes Verzonden: zaterdag 6 juni 2020 21:22 Aan: elecraft@mailman.qth.net Onderwerp: Re: [Elecraft] K3(s) main oscillator calibration The various reference calibration methods, including direct measurement of the TCXO that I do, just determine what the actual reference frequency is, but don't change it. This value is then used internally to compute the correct frequencies. Wes N7WS On 6/6/2020 11:47 AM, h...@kpnplanet.nl wrote: > Hi all, > > > > In the CONFIG menu REF CALL the value of the main oscillator can be set. > > However, this does not impact the TCXO frequency at all in a direct sense. > > > > Whatever the REF CALL value, the TXCO frequency stays the same. > > This can also be seen in the schematic. > > The TXCO just outputs 49.380 MHz and has no > voltage/frequency-adjustment input. > > > > So where and how does the frequency correction take place? > > Somewhere at the 15 kHz level or in the KSYN3 DDS / KSYN3A divider? > > > > Who can explain the principle. > > > > 73 Henk > > PA0C > > > ______________________________________________________________ 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 h...@kpnplanet.nl -- Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware. https://www.avast.com/antivirus ______________________________________________________________ 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
