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Re: [TowerTalk] NR-1 noise reduction unit.

To: Rob Atkinson <ranchorobbo@gmail.com>
Subject: Re: [TowerTalk] NR-1 noise reduction unit.
From: Richard Karlquist <richard@karlquist.com>
Date: Thu, 13 Nov 2025 12:26:24 -0800
List-post: <mailto:towertalk@contesting.com>
So IMHO, the unit should be called a "noise blanker". 

My ancient FT-1000 had a noise blanker that worked very well ... unless
there were other radio signals on nearly frequencies.  Think:  contests.
 In that case, it predictably folded like a lawn chair.  Has anyone
tried one of these during a contest?  I would be very surprised if it
would work under those conditions.

---
Rick Karlquist
N6RK 

On 2025-11-12 05:17, Rob Atkinson wrote:

> It's an interesting box; wish the manual included a schematic drawing.
> They make sure that you realize it's only good for impulse noise, so
> if that's all you ever have to deal with then okay fine.  In my
> environment, I've had to deal with leaky cable noise (sounds like
> white noise), and continually shifting plasma TV noise among other
> nuisances, so the old phase shifting and nulling networks using a
> noise pickup antenna are necessary here.  But if all I ever dealt with
> were AC line noise and motor ignition noise for example, this might be
> pretty good.   It might be useful for mobile operating.
> 
> 73
> 
> Rob
> K5UJ
> 
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