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Re: [RTTY] RTTY crosshair pattern

To: rtty@contesting.com
Subject: Re: [RTTY] RTTY crosshair pattern
From: Lee Roberts <ham@n0sq.us>
Date: Sun, 03 Feb 2013 13:15:08 -0700
List-post: <rtty@contesting.com">mailto:rtty@contesting.com>
I played with MMTTY filters and did manage to get 2 straight lines at 90 
degrees to each other. It seems that MMTTY doesn't work with my Kam+, though.

Arliss <w7xu@iw.net> wrote ..
> If you are referring to the pattern being crossed ellipses rather 
> than perfect horizontal and vertical lines, I believe that is due 
> to the filter bandwidth you are using.  Narrower filters give 
> flatter ellipses.  Or at least that's my understanding.
> 
> Arliss  W7XU
> 
> On 2/1/2013 8:52 PM, Lee Roberts wrote:
> > I've tried using a scope with my Kam+ and the scope with MMTTY. Neither 
one
> > gives a perfect "+" (crosshair) indication. I'm wondering why that is so.
> > Without a perfect crosshair pattern it would be difficult to get right on
> > frequency.
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