Hi Elecrafters
The K2 (# 4099) has the 100W amplifier and external tuner. It appears to behave normally in all modes on all bands except 20M & 17M. The K2 has lost all receive sensitivity on both the 20M & 17M bands (no signals can be heard). In addition, it will not transmit on these two bands and has a very high SWR into a 50ohm dummy load on these bands. Bypassing the external tuner does not improve the situation even when feeding into the dummy load, so I assume the problem is within the K2 rather than the external tuner. I am not sure if these symptoms point to a problem(s) in either the band-pass and low-pass filters? Any ideas of what I should be checking please? Cheers Ray G3XLG ______________________________________________________________ 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