Re: [TenTec] Sweep on O2

["Ron Castro" <ronc@sonic.net>]

Ten Tec is apparently planning a "High Speed Sweep" accessory, or so says 
their web site.  This may be the cure to those complaints.
Ron Castro
Chief Technical Officer
Results Radio, LLC


----- Original Message ----- 
From: "Grant Youngman" <nq5t@comcast.net>
To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Sent: Sunday, March 12, 2006 8:52 AM
Subject: Re: [TenTec] Sweep on O2


> > What else besides the Sweep and the NR that is broke in the
> > O2?
> It's true that the sweep may not meet everyone's operating needs.  It's
> better than it has been previously, and is certainly more than adequate 
> for
> my use.
>
> As I indicated in a post last night, I found the SNR -- actually 
> (S+N)/N --
> ratio to be improved by at least 10-12dB under VERY difficult noise
> conditions when using NR.  I was actually quite surprised at that result.
>
> On 20M this morning, with very differenct noise conditions than last night 
> I
> measuredthe SNR increase to be on the order of 20dB.  It was less at very
> narrow CW bandwidths, but that's to be expected since there's less noise 
> to
> begin with -- the narrow bandwidth itself improves NSR ratio.  At a 
> setting
> of NR = 1 I measured about 10dB improvement, and at a setting of NR = 9 I
> measured about 20dB overall using bandwidths of 1Khz and greater.
>
> Everyone has to make up there own mind whether that constitutes "broken", 
> I
> guess.
>
> Grant/NQ5T
>
>
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