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Re: [TenTec] Effect of roofing filter selection on Orion II NB

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Effect of roofing filter selection on Orion II NB
From: Sinisa Hristov <shristov@ptt.yu>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 14 Mar 2006 05:19:48 -0500
List-post: <mailto:tentec@contesting.com>
Grant Youngman wrote:

> So I remeasured it, just a minute ago.  Very simple.  Used a TS-585D/U Audio
> output meter on the radio's output (one channel to monitor, one channel for
> the meter.  (1) With NR off set the baseline noise level to read 0dB on the
> meter.  (2) Tuned to signal, read output level in dB.  (3) Turn on NR
> (signal level will drop) and adjust audio output to restore the signal level
> reading in (2).  (4) Read background noise.


Was the step 4 measured with no signal audible, just the noise?


73,

Sinisa  YT1NT, VE3EA
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