I'ts been a while, but I did this just fine with the 50mhz harmonic from the thunderbolt.
-- Phil W1JV On Thu, May 2, 2019 at 8:00 PM Bob McGraw K4TAX <[email protected]> wrote: > I'd hang a 1N914 diode across the output of the Siglent generator and > tune it to 25 MHz. The 2nd harmonic should be strong enough. > > 73 > > Bob, K4TAX > > > On 5/2/2019 5:26 PM, Frank O'Donnell wrote: > > Which of the following two signal sources would enable the best > > results from the KX3's extended temperature calibration? > > > > --Elecraft's XG50 board, which puts out 49.380 MHz ± 5 ppm. > > > > -- Siglent SDG 2042X waveform generator, with input from a Trimble > > Thunderbolt GPSDO. Maximum frequency on the Siglent is 40 MHz. > > > > The calibration instructions call for using a signal source close to > > 50 MHz. Is 40 MHz close enough? The XG50 is much closer to 50 MHz, > > whereas the Siglent/Trimble potentially has the capability of being > > considerably more accurate. I'm interested in squeezing as much > > frequency stability out of the KX3 as possible. > > > > Thanks and 73, > > > > Frank O'Donnell K6FOD > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:[email protected] > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
