Check the release notes, Stan. MCU 4.57 / DSP 2.79, 10-24-2012 state: K3EXREF USERS MUST NOW ENABLE THE MODULE IN THE MENU: To do this, locate the CONFIG:REF CAL menu and tap 2 to change the setting; flashes XREF IN or XREF OUT.
73 de David G4DMP In a recent message, Stan Gibbs <[email protected]> writes >I just realized that both my K3's running FW 4.67 are no longer locking to >the K3EXREF calibration signal from a Trimble Thunderbolt. Specifically, the >"REF CAL" config menu item does not show the flashing asterisk and moving >the main tuning knob does not show "LOCKED". I have had the K3EXREF >installed and operating properly with both rigs for at least a year. > >The Trimble Thunderbolt provides the 10MHz calibration signal to both K3's >though a MiniCircuits splitter. After checking the power supply and output >levels of the Thunderbolt, which were nominal, I decided to see if the K3 >firmware could be responsible, since I had fairly recently upgraded to 4.67. >Indeed, rolling back to 4.51 re-enables the normal "REF CAL" behavior! > >Can anyone else verify this? -- + - - - - - - - - - - - - - - - - + | David M Pratt, Kippax, Leeds. | | Website: http://www.g4dmp.co.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

