This may be too simplistic or doesn't address the OP as well as it could but...
I do have an external 10M reference, a GPSDO and use that to keep the K3s in proper frequency adjustment. That said, the instructions in the K3 or K3s manual address how to zero beat a known frequency source like WWV. Once the K3/K3s is adjusted to be accurately on the exact frequency (ie: 15.000000). I then go to the P3 and at the narrowest "Span" option on the P3, select "Ref Cal" from the menu button. and move the signal; till it is at dead center on the screen, right in the center of the 15.000000 MHz signal, right at the center mark. I then tap select and this returns the P3 to normal function. This leaves me with a monitor that shows exactly where signals are and when I use the marker function, it lands that chosen signal dead center and the K3s reflects it as well as the P3. Nothing like a cool smoothie on a hot day... 73, Gary KA1J ______________________________________________________________ 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