I am a new K2 (#7212) user. I have been baffled by what I thought was my inability to properly perform the frequency alignments. My last attempt was to perform a factory reset and re-do PLL and BFO (Table 8-1 values) calibrations.
I believe that I have found the issue, sometimes it appears that the VFO frequency offset look-up tables are not used and a toggle through two "CW REV" changes are needed. Used a K3 CWT SPOT as a 4MHz monitor to adjust C22. Using a K3, CWT, SPOT and K2 in in TUNE (with dummy load) to measure the K2's frequency. Test process is: Note: only the events in the below text were performed. Power off K2 with F set to 7026.00 Power on: K2 F=7026.00 K3 F = 7026.146 "CW REV" "CW REV", K3 F = 7026.018 Power off K2 Power on K2 F=7026.00, K3 F = 7026.025 Power off K2 Power on K2, Move K2 F to 7027.00, K3 F = 2027.028 Power off K2 Power on K2 F = 7027.00, K3 F = 2027.145 "CW REV" "CW REV", K3 F = 7027.000 I was listening to the audio during the above process. There was a notable change in the resulting pass-band audio when the "CW REV" "CW REV" toggle was performed and the K2 frequency changed. Leading me to believe that the VFO offset frequency was changed. Though I can't find a reproducible process, I have found events where during a K2 power on session, sometimes a "CW REV" "CW REV" is needed to acquire correct K2 frequency. Is this normal K2 operation, or do I have an issue with this K2? 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
