Hi Steve: Have you checked its operation as shown in the K3EXREF manual? The manual is available here if you no longer have your copy. See page 4:
http://www.elecraft.com/manual/E740156%20K3EXREF%20Installation%20and%20Oper ation%20Manual%20Rev%20A2.pdf Note that with the external signal present, the asterisk between REF and CAL should be blinking. Another test you can run is to disconnect the external signal, adjust the REFCAL manually as described in your K3 Owner's Manual, and then reconnect the external signal. You should see the REFCAL value displayed change automatically. Note that the K3EXREF only corrects the REF CAL frequency to be with 2 Hz of the standard. 73, Ron AC7AC -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Steve Lund Sent: Friday, April 22, 2016 4:13 PM To: Elecraft Reflector Subject: [Elecraft] [K3] K3EXREF not working I just noticed that my K3 frequency is approximately 50 Hz off. I have the K3EXREF installed and the external 10 MHz is supplying +10 dBm to the rear panel connector. The 10 MHz appears to be 3 Hz low according to my counter and spectrum analyzer. Is this too much? One recent change is that I installed the K3SYN3A a few months ago. I didn't check to see if the K3EXREF was locking to the external reference. Any ideas on how to troubleshoot this? Thanks, Steve, K6UM ______________________________________________________________ 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 Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
