On 4/9/2012 12:29 PM, Bill Miller wrote: > I am newly re-licensed after many years off and finding lots of > QRN. Not news to anyone, eh?
Been at this hobby for 59 years and QRN seems to have been pretty constant to me. There are a lot more and different types of noisemakers out there than years ago, but power companies [the primary source many years ago] are, by and large, much better at fixing their's. Individual exceptions will occur, however. :-) Well, I am using an MFJ 993 tuner and > just for giggles I turned it off today and the S meter dropped > several points (all noise). Signals would have dropped too, it's normal with non-resonant antennas which yours must be or you wouldn't need a tuner. In fact, I can pretty much get my antenna matching unit tuned just on received noise. > > I've considered getting a KAT-3 and unless someone has a solution to > the MFJ noise problem, I will go ahead with plan B. It's not the brand of tuner, it's physics. When your antenna/tuner presents 50 + j0 ohms to your radio, you have the most efficient transfer of power in either direction. When it is not 50 ohms, like when you switch the tuner out, it's less efficient. Glad to have you back on the air! 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org ______________________________________________________________ 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
