Hi, We are working on an older K2 (S/N 152) to fix apply some simple mods and generally update things. After doing some straightforward mods (control board exclusively) we decided to touch up the filter/BFO alignment as the perceived bandpass seemed to be tuned a bit low. It went very easily until we were working on the CW filter settings in CW-REVERSE. There, anything we did refused to shift the bandpass appropriately. We then did a BFO test from the manual. The desired range is 3.5 kHz or higher, this rig came in at 2.83 kHz and is likely the source of our problem. Reading somewhat in the manual, a L33 is referred to. We haven't pursued that angle as yet. So... the big question for the K2 gang is this:
what is the most likely cause of a too-narrow BFO tuning range? I personally suspect the BFO crystal(s), but what do I know. For reference, I did not build this particular unit although I did build a K2 of the same S/N series back in 2000. This K2 has not been used much at all but seems to work fine otherwise. This K2 got a ride on three major raft trips this past summer (in a Pelican case!) but I doubt that is the source of the problem. Any ideas? Things to check?? -- 73 Allan K7GT ______________________________________________________________ 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
