I find the Orion AGC controls very interesting. The RF gain control in my
opinion is not even needed on the Orion. If you set prog AGC, the threshold
control works very similar to the RF gain control on other receivers. For
weak signal work, always use prog AGC and set the threshold to 0.38 uv. If
you want a quiet background, you can use med or slow agc which have a
threshold of 3 uv. If you want a very quiet background to block out thunder
crashing, use prog agc and set the threshold to 50 uv or even higher.
Fast agc seems best for SWL'ing with AM broadcast stations.
Carl Moreschi N4PY
Franklinton, NC
----- Original Message -----
From: "Richard Siff" <Richard.Siff@verizon.net>
To: <TenTec_Orion@yahoogroups.com>
Cc: <tentec@contesting.com>
Sent: Monday, June 30, 2003 4:00 PM
Subject: [TenTec] Re: [TenTec_Orion] Orion at field day
> Hi Marty and All,
>
> Finally no A/B TEST - Just real observations. Thanks for your report.
>
> Using my ORION at home during FD, I started playing with the AGC, I
> found best speed was slow - made the receiver very quite on CW, I kept
> the selectivity between 500 and 100 hz. I have not noticed any strong
> single affects in about 50 CW QSOs with the ORION. I am about a 30 wpm
> guy for CW - but enjoy 3 WPM too on 7108.
>
> For LSB also played with the RF gain along with the AGC and found
> settings of 34 - 50 RF gain to be excellent with SLOW AGC for QRN
> conditions on 75 meters. I set the NB at 2 and NR at 5. This generated
> Q5 copy with S-1 and S-2 singles checking into the VSBN on 3947 LSB
> handling FD traffic on June 29th.
>
> I too am impressed with the ORION - Just did not have enough GUTS to
> take it out to the FD site this year.
>
> I hope some others will share their ORION SETTINGS.
>
> God Bless
>
> R
>
>
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