After extensive experiments with tx audio settings in pursuit of "perfect audio" for my purposes - dxing on 80m - I came to the conclusion that for my voice with the HC-4, an offset of -0.07 with the 2.8 kHz filter was about right.
However I would not say that I "had" to do this to make the audio "decent". It was very decent, excellent even, without offset and with appropriate settings of mic gain, compression and equaliser but to my ears, rightly or wrongly, it sounded slightly better *for my purposes* with the offset. In the same way I tried both the 2.7 kHz and the 2.8 kHz filters after building my K3 in January 2008 and to my ears the tx audio from the 2.8 kHz sounded slightly better for what I wanted than from the 2.7 kHz. Others may have a different view. Opinions about tx audio are very subjective and also have to be taken in usage context. I am looking for audio that I think will be heard on the other side of the planet on 80m when my signal is at or below the noise level, but that might not be right for another band or for another purpose. My method of experimenting is to make recordings on my PC from another receiver, but of course the characteristics of the other rx will not necessarily match those of the rig of the station I am trying to work, and the recording process can make subtle changes too. So it's a rather inexact science providing hours of harmless fun that almost keeps me out of mischief ;-) 73 to all Geoff G3UCK ----- Original Message ----- From: "W0MU Mike Fatchett" <w...@w0mu.com> > > Has anyone else using the eight pole ssb filter had to adjust the offset > to > get it to sound decent on transmit? > ______________________________________________________________ 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
