David, Since there is nothing band or frequency dependent directly associated with the generation of SSB and the audio in a K2, my first suspect is that you have an RF Feedback situation on 160 meters. Does it do the same thing when connected to a dummy load? If it is still the same, the feedback path is internal to the K2 and we can help further, BUT if it is OK on a dummy load, the problem is coming from your antenna and will have to be fixed in the antenna system. If you have not grounded the shell of your microphone connector, that may be a good first step. The way I do it is to remove the left side panel and scrape a bit of the slikscreen material from the board right at the base of the mic jack - then apply a large tipped soldering iron to the connector until the mic jack itself melts solder near (but not at) the iron tip location. Flow some solder at the junction of the mic jack and the bared ground spot and it is done.
73, Don W3FPR David Heinsohn wrote: > On 160 mtrs, SSB as I move up the band I begin to get poor audio reports > at about 1.900mhz. The tuner is showing less than a 2:1 swr at that > point and I retune often as I move up. The antenna is a dipole centered > on 1.825mhz. Other than adding a shorter element to the dipole, any > ideas what I need to do to fix the problem? Any ideas why I'm getting > the poor audio reports? > > ______________________________________________________________ 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
