[TenTec] S meter and RF gain

Carl Moreschi n4py at arrl.net
Thu Feb 9 17:58:48 EST 2006


Of course, the best solution would be for the S meter on the Orion to work
just like the RX340.  The RX340 S meter always reads correctly regardless of
RF gain setting, attenuator setting, preamp setting, or even AGC rate used.
It is the only radio I have ever seen that works this way.

By the way, the Orion V1 S meter won't read signal strength below the noise
level (or any radio for that matter) because the noise moves S meter above
the signal level.   This is why the V2 S meter scheme is really ok.  As long
as you don't lower the RF gain so that noise no longer moves the S meter at
all, all signals above the noise will show on the meter.  Toby, it sounds
like you lowered the RF gain too much if you could not get S meter readings
for signals that were above the noise.

Carl Moreschi N4PY
121 Little Bell Drive
Bell Mountain
Hays, NC 28635
----- Original Message ----- 
From: "Toby Pennington" <toby423 at earthlink.net>
To: "Ten Tec List" <tentec at contesting.com>
Sent: Thursday, February 09, 2006 5:27 PM
Subject: [TenTec] S meter and RF gain


> <<<  With the new RF gain S meter interaction, the S meter is
> always correct if the signal is above the RF gain setting>>>
>
> IF THE SIGNAL IS ABOVE THE RF GAIN SETTINGS..... This is precisely my
point,  if the signal is NOT above the rf gain setting then NO s meter
reading is available,  whether accurate or not, having the s meter to read
actively all the time gives you an idea  of what the relative strength of
the other stations signal is and you can quickly give him a report.
>
> Contesting maybe a different matter as everyone is 599,  so why would a
contester need an s meter to begin with?
>
> But for those of us who have regular QSOs and needing to give reports if
is helpful to have a working s meter all the time,  not just when the RF
gain is turned up high enough tor the s meter to function.  Maybe the
question should be asked,  What is the S meter for anyway? ......to be able
to offer signal reports,  or to see where the RF gain is set.
>
> Toby  W4CAK
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