[TenTec] Orion II, RX Antennas and use of AGC/RF Gain....

[Bob McGraw - K4TAX]

Brad:

My take on this is that every antenna efficiency is different, every antenna 
will have different noise characteristics just to name a couple of 
parameters.  Correctly applied, every case will require receiver adjustments 
to attain optimum results.  Sorry but with today's technology, the radio and 
its computer won't do it for you.  That includes the Orion II and the 
FT-1000D.

73
Bob, K4TAX


----- Original Message ----- 
From: "B. Denison" <brad.denison at gmail.com>
To: <tentec at contesting.com>
Sent: Saturday, April 04, 2009 12:58 PM
Subject: [TenTec] Orion II, RX Antennas and use of AGC/RF Gain....


> So I have about 8 different antennas I use for 160m and 80m. My typical
> behavior is to pick the best antenna for the conditions, etc. I am 
> wondering
> how folks balance the adjustment of RF gain or AGC threshold given that
> different antennas can have different levels of noise, gain, etc ( which
> would
> seem to need different AGC thresholds or RF gain settings to manage the
> noise
> levels)? To sum up my dilemma, I don't like fiddling with controls during 
> a
> contest and am wondering how people handle this type of scenario given 
> that
> different RX antennas can produce different levels of noise?
>
> One thing for sure, my FT-1000D seems a lot easier for me to handle in
> this type
> of scenario. I have yet to use my OII in a contest for this reason and
> for the
> fact that I have to tweak RF gain or AGC threshold to manage noise when
> switching from band to band.
>
> I guess the same question is applicable for those who may switch from a
> vertical
> to a dipole of a vertical to a beam - all generating different needs on
> RF gain
> AGC. This seems like a pain in the butt balancing act. Maybe I am missing
> something? I'd like to make the jump permanently to the OII but am stuck
> on the
> ease of use of the 1000D for my contesting. Any thoughts? Someone else 
> must
> have been through this....
>
> Thanks,
>
> Brad
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