Lyle, Thanks. I learned something.
That does make sense as the synth are under MCU control so that would be the easy way to compensate TCXO drift. REF CAL display then merely displays the TCXO frequency as measured against the external 10-MHz reference. Actual frequency is compensated by the synth.
One can measure the TEST mode output directly into a frequency counter (BUT DO NOT transmit full power). I can measure the K3 10w signal by using a 2m rubber ducky connected to my counter and held next to the K3 chassis. Running higher power is even easier to monitor on a counter. Transmit in CW mode.
73, Ed - KL7UW Date: Tue, 8 Mar 2016 05:23:46 -0700 From: Lyle Johnson <[email protected]> To: [email protected] Subject: Re: [Elecraft] K3EXREF question Message-ID: <[email protected]> Content-Type: text/plain; charset=windows-1252; format=flowed Almost. The TCXO has no control input and is not tuned; it is only measured. The measurement information is passed to the radio's MCU which then uses the data to determine the correct value to command the synthesizer(s), drive the REF CAL display, and so forth. 73, Lyle KK7P 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: [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]
