[1000mp] Modifying The INRAD roofing filter board.

[Mike Schatzberg]

Hello Noel:

I think perhaps you read about this modification on my website, or perhaps
on the VA3CR website.

There is a short note from Gilles, VE2TZT, regarding his success with the
modification.  He has posted in on the Contest Group of Quebec website.  You
can see it here:

www.contestgroupduquebec.com/index.php?option=com_simpleboard&Itemid=41&func
=view&id=528&catid=2

I have received positive feedback from many owners of the Mark V who have
completed the simple mod.

73 and Happy DXing,

Mike
W2AJI
----- Original Message ----- 
From: "VE2FWW" <ve2fww at globetrotter.net>
To: <1000mp at mailman.qth.net>
Sent: Sunday, January 27, 2008 8:38 PM
Subject: [1000mp] Modifying The INRAD roofing filter board.


> Hello
> I wonder if anybody in this group had modified the INRAD MARK V OR FIELD
roofing filter board.
> I read the informations on W8JI website.
> This mod is done to keep proper input impedance  for loading the filter
> There are two resistors to be changed on the INRAD board....R5...which is
a 12 Ohms ...replaced by a 15 Ohms....and R6 which is 220 Ohms...replaced by
a 150 Ohms...
> I would like to know if anybody performed this mod on the INRAD Board....
> I have Inrad Roofing filters in my Fields ...and it would be interesting
to know the difference between the MOD and the NO MOD????
> Any input would greatly appreciated...
> Thanks
> NOEL ve2ryy
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