Dave and all, Actually the frequency of the station makes no difference at all. The "secret" is that the difference between the VFO and BFO frequencies (in LSB or USB only) is equal to the frequency of the station you are tuned to. With 10 (or 15 MHz) WWV, the subtraction is easy since all but the first digits of the station frequency are zeros, so all the lower order digits will match. When using RWM or some other station that transmits on a XXXX.00 frequency, that match will only occur in the digits after the decimal - one should do the subtraction as a confirmation that there is not a 1 kHz error.
73, Don W3FPR On 6/7/2011 11:41 AM, Dave Sergeant wrote: > But bear in mind this is at 9996kHz, 4 kHz away from 10MHz. I thought > the way the K2 PLL worked meant you had to calibrate at exactly 10MHz, > so calibrating against RWM may not give correct tracking on all > frequencies. It also transmits a pure carrier only for a few minutes > each hour, making it hard to use. > > It is a pity that WWV is very rarely at a strong enough signal in > Europe to be used as a calibration reference and there is currently no > other one to use. > > 73 Dave G3YMC > ______________________________________________________________ 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
