I recently used the frequency measurement facility of the new WSPR software to calibrate my K3, and got into a discussion with an amateur who turns out to be to be the former Head of Standards in British Telecom. He pointed out a few things that are probably obvious to the more technically minded of you already, like the fact that even if I get the calibration spot on at that moment in time, even the 0.5ppm specification of the TCXO option means that the calibration could vary by up to 25Hz at 50MHz.
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? Is the local oscillator for the 144MHz transverter module derived from the main K3 master oscillator, so it would also benefit from the ability to lock the reference oscillator? ----- Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/K3-REF-IN-tp4105110p4105110.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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
