Doug, I have owned and used my K2/100 on SSB and CW for almost 10 years, but it has been relegated to "second radio" duty since getting my K3 a year ago.
I've been getting the K2 ready for a DXpedition for the last few days and I have noticed a similar symptom to what you describe, as part of a more-general syndrome that I can't explain and that is very unnerving. The primary problem is that I frequently turn on the K2 in USB mode but I can't get any output. Speaking into the mic simply doesn't produce any output, doesn't move the ALC meter and doesn't produce anything I can hear on the K3. Even though it all worked together fine the previous day. As part of the diagnosis procedure, I removed the mic plug from the front panel and shorted the PTT pin to the adjacent GND pin - I was going to see if touching the MIC pin in this configuration would create output and indicate a faulty line from the mic itself. Lo and behold, shorting the PTT and GND pins produced a *strong* carrier, whose output I could vary with the POWER control. Since this didn't produce the expected result (to say the least!), I remembered that the "dot" side of the paddle would act as PTT, so I plugged in a paddle and got the same behavior. Just for grins, I switched to CW and everything worked as expected. Switching back to USB, it too now works as expected. At some point in this procedure, I saw both the Hi Cur and the PA Hot warnings, but both are gone now. Don - any thoughts on what's going on here? Do I have to do a "reboot" of the radio? Brian K1LI ______________________________________________________________ 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
