Some people seem to have a lot of trouble detecting "zero beat" but once the technique is learned, it's easy to calibrate the K3/K3S to within 0.2 Hz of WWV's carrier (one beat every 5 seconds). One could get closer depending upon your patience.
It's useful to wait until WWV transmits a steady carrier with no tone, otherwise it's easy to accidentally zero beat one of the sidebands produced by the tone so you end up off by the frequency of the tone. The K3 makes a great tunable frequency meter. Nowadays I use the K3 (calibrated against WWV) to check the calibration of the counter's master oscillator. 73, Ron AC7AC -----Original Message----- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Frantz Sent: Saturday, February 11, 2017 10:01 AM To: stengrevics Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Frequency Counter for Calibrating K3S Frequency counters will also need to be calibrated. I have been quite happy using WWV with my K3, and you can't beat the price. 73 Bill AE6JV On 2/11/17 at 9:39 AM, jstengrev...@comcast.net (stengrevics) wrote: >I am considering buying a frequency counter to calibrate my K3S. I see >that Amazon has several for <$100. Has anyone had any experience with >these? Are they just a waste of money? ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
