[Elecraft] FW: [CQ-Contest] SOME THOUGHTS ON USING THE K3 ON SSB

[Geoffrey Downs]

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" <w0mu at w0mu.com>
>
> Has anyone else using the eight pole ssb filter had to adjust the offset 
> to
> get it to sound decent on transmit?
>