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[TenTec] Ten-tec noise and RX questions

To: <tentec@contesting.com>
Subject: [TenTec] Ten-tec noise and RX questions
From: W8JI@contesting.com (Tom Rauch)
Date: Thu, 28 Oct 1999 09:57:59 -0400
> Good point.  I believe that the narrowband noise does make it
> harder under some circumstances to pick out a weak signal.  

Depends on the noise. With white noise, selectivity helps. With 
rough noises, it can hurt because the filter ringing will draw out the 
pulses and increase noise pulse duration.

For example, on a quiet day on 160 meters with only a steady 
background hiss I find even a 125 Hz filter helps me copy weak 
signals, especially when set for a low pitch. 

When there are static crashes, or worse yet an accumulation of 
several storms causing static (or powerline buzz or other harsh 
hash) running my receivers with SSB filters and no AGC is much 

73, Tom W8JI

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