I can almost guarantee this is going to be another one of those, "My radio
doesn't act like that threads."
The reason being, this phenomenon is level sensitive. With a weak signal the
noise reduction lowers the signal strength but above a certain level, it
increases the signal dramatically.
With a -110 dBm signal (1000 Hz beat note) turning on NR (F1-1) reduces the
audio signal 6 dB.
At -100 dBm input, NR *increases* the signal 11 dB. At -90 dBm it's up 16 dB.
Wes N7WS
--- On Wed, 4/8/09, Merv Schweigert <k...@flex.com> wrote:
> From: Merv Schweigert <k...@flex.com>
> The post from BA4RF etc about the NR causing the audio to
> blast,
>
> I mentioned I do not work SSB but tried went to SSB and
> confirmed
> the increase in audio,
> well its on all modes as far as I can tell, to be more
> truthfull I do
> not use
> NR as I find it to non effective to CW work at least the
> for what I want,
>
> If you have a decent signal strength CW signal tuned to the
> pitch setting
> and hit NR with a setting of 4 the audio increases
> dramatically, I
> tried it
> also listening to AM broad cast on 40 meters and had the
> same increase.
>
> So unless its my radio only again the NR function is not
> working on all
> modes as of the last couple updates. AGC updates effected
> the NR
> in some fashion? I did not try changing any of the AGC
> settings to see
> if they made any difference.
> 73 Merv KH7C
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