You can reduce the bandwidth by cutting lows and/or highs with TX EQ. The K3 firmware expects a 2.7 to 2.8 kHz Tx filter, and will probably display an ERR TXF error if you select another. Your overall objective is fine, I do this by cutting the bottom two audio TX EQ bands to their lowest value. These bands don't help intelligibility of my voice, but they do pick up the fan in my tube amp.
73 de Dick, K6KR On Dec 4, 2010, at 8:33, [email protected] wrote: > Hi Dick > > I was not thinking about shaping but reducing the bandwith to concentrate the > transmitt energy. Kind of like narrow filters for CW. > > I am still new to this hobby and it was just an idea that I had. Maybe when > I finish going thru the extra study guide over the holidays I will know the > theory if this was a bad random thought. > > Thanks > Don > KD8NNU > > > On Sat, Dec 4, 2010 at 11:20 AM, Dick Dievendorff wrote: > >> Tx Filter for SSB and CW and Data must be 2.7 to 2.8 kHz. Better to use TX >> EQ to shape your Tx audio. >> >> 73 de Dick, K6KR >> >> On Dec 4, 2010, at 8:04, [email protected] wrote: >> >>> If I set up my transmitt filter to use the 2.1 8 pole, would this create >>> any problems. I am wondering if this would tighten the signal to improve >>> my TX as I am running bearfoot. >>> >>> Thanks >>> Don >>> >>> >>> ______________________________________________________________ >>> 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 ______________________________________________________________ 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
