I learned in the old days, so I always use the minimum RF gain necessary
to hear the signal and have the AF gain turned up a bit more than most.
On both my Corsair and my OMNI VI this make the receiver much
quieter. The S meter doesn't read anything useful this way, but I don't
really care; I'd rather hear the signal.
Listen to the OMNI VI with no signal and turn down the RF gain
until the background noise goes away. Then when you tune across
a signal it will appear to come out of nothing. Do this with the NR
turned on and it's really enough to make you jump when you find
a signal. My RF gain is usually set around 12:00 at the most. On
a really weak signal you might have to turn it up higher, but it
doesn't happen often.
The first time my son heard the radio with no signal he thought
it was on mute until I spun the dial and a CW signal popped
out of the speaker.
73
Steve WA2SOC
Bruce Warner wrote:
> Hi - I purchased an Omni VI through this list recently, and just have a
> general question. When I have the RF gain fully clockwise then engage the
> AGC either in slow or fast, it distorts the speaker, but when I pull back on
> the RF gain a few notches (say to the 3 o'clock position) then the AGC no
> longer distorts and it picks up the signal while reducing the background
> noise. I don't have a copy of the manual, so is this the normal setting to
> back off the RF gain when using the AGC (or do I have a problem with my rig)?
> Thanks.
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