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Subject:
Re: Tuning aids, noise bridges, etc.
From:
Tom Behler <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Thu, 16 Aug 2012 19:33:22 -0400
Content-Type:
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    Works for me too, Howard, so thanks a lot!

73 de KB8TYJ

----- Original Message ----- 
From: "Howard Kaufman" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, August 16, 2012 8:17 AM
Subject: Re: Tuning aids, noise bridges, etc.


> Tom, they are really cool!  They generate noise that is nulled out when 
> they
> see an adjustable resistence, usually 50 ohms.  So when the noise 
> disapears
> from the receiver, you have matched a 50 ohm impedence.  I think of it as 
> an
> audible grid dip meter.
> That may not be technically correct, but that image works for me.
>

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