Anyone else notice a birdie when the display is tuned upward from xx.11
to xx.12mc??? It is the transition from any megahertz dot 11 to dot 12. It throws out a loud birdie every time at any MC interval. Does that make sense? I am on 30 meters right now. The display shows 10114.11 then I tune to 10114.12 and I hear the birdie on that transition. It also happens at 10115.11 to 10115.12 and so forth on up the bands. Mike WE0H K2 6698 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Mike,
If you can describe that more as a "click" rather than a "birdie", I can offer a solution - run CAL PLL again - be certain the 4 MHz oscillator is set first and the bottom cover is in place. You also may want to re-flow the soldering on RF Board U4 before doing the CAL PLL. With the repetitive frequencies involved, it sounds like more of a PLL problem than a birdie. 73, Don W3FPR Mike-WE0H wrote: > Anyone else notice a birdie when the display is tuned upward from xx.11 > to xx.12mc??? It is the transition from any megahertz dot 11 to dot 12. > It throws out a loud birdie every time at any MC interval. Does that > make sense? I am on 30 meters right now. The display shows 10114.11 then > I tune to 10114.12 and I hear the birdie on that transition. It also > happens at 10115.11 to 10115.12 and so forth on up the bands. > > Mike > WE0H > K2 6698 > > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Yes a click is a better description. It is very consistent. The
soldering is excellent on this radio. Flowed through both sides on everything. I used good equipment and a grounded blue mat bench top. No static issues. I will do that CAL PLL again. The VFO cal is real close to WWV on 10mc and also matches my 3mc oven oscillator and DDS VFO also. I'll do that & report back...hi hi... Thanks much, Mike WE0H Don Wilhelm wrote: > Mike, > > If you can describe that more as a "click" rather than a "birdie", I > can offer a solution - run CAL PLL again - be certain the 4 MHz > oscillator is set first and the bottom cover is in place. You also > may want to re-flow the soldering on RF Board U4 before doing the CAL > PLL. With the repetitive frequencies involved, it sounds like more of > a PLL problem than a birdie. > > 73, > Don W3FPR > > Mike-WE0H wrote: >> Anyone else notice a birdie when the display is tuned upward from >> xx.11 to xx.12mc??? It is the transition from any megahertz dot 11 to >> dot 12. It throws out a loud birdie every time at any MC interval. >> Does that make sense? I am on 30 meters right now. The display shows >> 10114.11 then I tune to 10114.12 and I hear the birdie on that >> transition. It also happens at 10115.11 to 10115.12 and so forth on >> up the bands. >> >> Mike >> WE0H >> K2 6698 >> > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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