Paul Saffren N6HZ wrote: > > The XG3 has 1 Hz resolution over it's fundamental range of 1.5 to 200 MHz. > The calibration should be done at 10 MHz as this is the frequency of the > internal crystal. The values entered for the calibration values do not > necessarily produce a linear increase or decrease to the output frequency. > This is due to how the calibration factor is used in the computatation of > the output frequency. You can however get pretty close and then fine tune > as needed. >
I believe we're confusing the XG3's resolution (1 Hz) with calibration settability (a few Hz at 10 MHz). The XG3 indeed has 1 Hz resolution but mine is not settable to 1 Hz. Using WWV at 10 MHz, my factory supplied cal constant is -529. With that constant my XG3 is only off by 1-2 Hz but I cannot get it any closer. There's no change in the XG3 from about -534 to -524 cal settings, but then it jumps to about 4-5 Hz off. This isn't a big deal to me but you might want to add some explanation to the manual. I don't expect a product in this class to rival an HP 8640! :-) 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/1-Hz-setting-tp6334687p6335229.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
