[TenTec] Ocean noise

Steve Baron - KB3MM SteveBaron at StarLinX.com
Sun Feb 12 18:40:37 EST 2006


I found W9GE'd paper very good for setting up Orion not OII
----- Original Message ----- 
From: "Bill Tippett" <btippett at alum.mit.edu>
To: <tentec at contesting.com>
Sent: Saturday, February 11, 2006 20:49
Subject: [TenTec] Ocean noise


> AA6VB wrote:
> 
>  >I have heard you need to reduce the gain but when you put both rigs 
> side by side with no antenna the Orion has much more internal 
> noise.  I think it is just a fact of life.
> 
>          Guys, especially those of you new to Orion
> whether original or O2, please read this!
> 
> 1.  Orion's AGC will amplify internal noise if the
> threshold is set too low.  Orion's digital AGC is
> different than what is in the MP or other rigs.
> 
> 2.  As previously stated, set AF Gain to mid-scale
> and adjust RF Gain down until the noise drops.
> 
> 3.  The exact setting will vary depending on
> how much gain your antenna has and what band you
> are on (atmospheric noise being higher on the low
> bands and lower on the high bands, so the RF Gain
> setting will be a lower number on the low bands).
> 
>          I wish I had a dollar for every time I've seen
> complaints about this!  I'm now considering going
> into business buying Orions from people who still
> don't get it and reselling them with some simple
> instructions as above.  :-)
> 
>          Orion's AGC is phenomenal, but please take time to
> understand how it works and how to set it up properly.  More
> info below and in the manual.
> 
> http://www.doug-smith.net/digitalagc.htm
> 
>          Anyone still want to argue that using the S-meter to
> set RF Gain (which includes AGC Threshold) is a bad idea?
> 
>                                          73,  Bill  W4ZV
> 
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