Page 17 of the K3 Owner's Manual (Rev D2) shows an SMA connector for "Input for external standard frequency reference" for which a KREF3-EXT option purports to be available eventually. I understand from what has been said earlier is that this will be for a 10MHz standard so you will need to use the 60kHz MSF signal to lock a 10MHz TCXO or use a GPS, Rubidium or Caesium standard.
Elecraft are busy preparing the K144XV for despatch and developing the P3, so we might have to wait a while for the KREF3-EXT despite the option being shown in the early editions of the K3 manual. I am told that patience is a virtue. 73 David G4DMP In a recent message, "Julian, G4ILO" <[email protected]> wrote ... > >I live 10 miles from the 60KHz MSF frequency and time standard transmitter >so it would be rather cool to build a receiver for this and lock the K3 >reference oscillator to it. I see that there is a blanked off hole for an >external frequency reference on the back of the K3. What would be necessary >to make use of this? -- David G4DMP Leeds, England, UK ------ ______________________________________________________________ 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

