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Re: [RTTY] Simple filtering for SO2R ?

To: Gordon Bousman <nw7d.ham@gmail.com>, rtty@contesting.com
Subject: Re: [RTTY] Simple filtering for SO2R ?
From: 7L4IOU <ncb02761@nifty.com>
Date: Fri, 01 Nov 2013 15:14:14 +0900
List-post: <rtty@contesting.com">mailto:rtty@contesting.com>
Hi Gordon, 

In my limited experience. 
the minimum SO2R operation can be performed with
 simple home brew Diplexer and a Tri-bander antenna. 
 
outline is in PDF file 
<https://dl.dropboxusercontent.com/u/86270207/Diplexe_for_Tribander.pdf>

btw, power rating is 150W or less with 500V mica capacitors. 

73, Hisami 7L4IOU


>I'm just getting started in setting up my station for SO2R and am 
>taking
>baby steps to get things set up due to a somewhat limited budget.  
>However
>I now have a 6-Pack antenna switcher in the shack and a MicroHam M2KR+ 
>will
>arrive in a few days to control my Icom 7600 and 756 Pro III rigs 
>using
>Writelog.  As far as filtering goes (and in order to be ready for the 
>WAE
>RTTY contest), can I get by for now with filtering by just making up 
>some
>stubs (which I think I will mount at the 6-Pack)?  I only have one
>low-power amp (300 watts) and the 2nd rig will run barefoot.  The main
>antennas are two hex beams separated about 100' from each other - plus 
>a
>wire OCF antenna for 40-80 which is more or less between the two hex 
>beams.
> I've tried to read about stub filtering online but I'm still unsure
>whether stub filters alone are sufficient.  I would hate to blow up 
>the
>front end of my brand new 7600.
>
>Thanks for any advice - this is sort of a last-minute rush SO2R 
>project to
>be ready for WAE.
>
>73 Gordon NW7D
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