Hi Don, My question is directed specifically at the CAL FIL BFO frequency being 100 Hz different between cold and warm. As mentioned, because the BFO frequency is off by 100 Hz, the 200 HZ filter is unusable because a properly received pitch will place the signal on the filter skirt.
This K2 serial number is above 7K The test is: Multi hour warm up, enter CAL FIL, measure and record a filter BFO frequency. Next morning, cold start, perform same measurement as above and compare the difference between the two BFO readings. John KN5L ______________________________________________________________ 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
