Hi Bob --
I, too, have been following this. What you and Stuart say about the RF
gain is correct. W4KH showed that to me back when I only had a TR-7.
Still have it and a VI+, both with RF gain backed off max.
73,
Aariel, k4aal
Robert & Linda McGraw K4TAX wrote:
> Stuart is really very correct here. I see it all too often a receiver
> sitting there with no signal and the S-meter at S- 5 or S-6 or higher. So
> be it for the noise be it line or atmospheric. What that tells you is there
> is too much gain for the band conditions. Two choices, switch in some
> attenuation or back down the RF gain or both. You'd be surprised how well
> you can hear once doing this. Most often I tune to an un-occupied
> frequency, look at the S meter and back the RF gain down to where it is only
> S-1 or S-2. Remember, 20 dB attenuation is equal to about 4 S units. The
> ears will dig out a signal that is typically 10 dB below or down in the
> noise. No need to have a noise there taking up AGC gain range and trying to
> dig a signal out of a S-9 noise level. It just won't happen.
>
> Try it, you'll be surprised how easy it really is to now hear the weak ones.
>
> 73
> Bob, K4TAX
>
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