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Re: Topband: Update: RFI to DSL modem - A Cure that WORKS!

To: herbs@surfvi.com, topband@contesting.com, paul@n1bug.net
Subject: Re: Topband: Update: RFI to DSL modem - A Cure that WORKS!
From: K1ZM@aol.com
Date: Tue, 22 Nov 2005 09:14:36 EST
List-post: <mailto:topband@contesting.com>
Hi Guys
 
I recently added DSL to my station in NY - and found some data interrupts  
occurring.
 
I have solved the problem by putting ICE RFI filters on the telco line just  
before it enters my DSL modem.
 
ICE makes two models of filters with RJ plugs on them - one is a 30DB model  
and is TINY - about the size of a book of matches and is WHITE. The other is a 
 50 or 70-DB model & is bigger - like the size of a pack of cigarettes or  so 
and is BLACK in color.
 
One costs about $30 apiece and the other is more like $50 I think I recall  
(the ICE website will tell you current pricing).  You can get these filters  
from K1QX at RADIOWARE  (1 800 950 WARE) - as CRAIG CLARK has a distributor  
arrangement with Mike at ICE - and Craig is familiar with these items.
 
Here's what you MAY find happens when you put them just ahead of your DSL  
modem:
 
1) I tried one WHITE 30DB filter and I was not yet happy. 
2)Then I tried one single BLACK 50-70DB filter and it was MUCH BETTER - in  
fact zero dropping of DSL.
3) When I tried two BLACK filters BACK TO BACK in series, it caused my DSL  
link to start to drop - so I backed off to a single BLACK filter.
 
I only cause a SLOWDOWN now when I xmit on one position on my 80M 4SQ (that  
quadrant aims right at my modem!) - but all my other antennas on ALL bands do  
not touch DSL anymore - so I would try the ICE 50-70DB filter.
 
Better yet - order both a 30DB and a 50SB model.  These are the BEST  
telephone RFI filters I have EVER SEEN - I use them in all my neighbor's homes  
when 
they call me about telco RFI.
 
I put 'em on for FREE and when it solves the problem, I get a FRIENDLY  
neighbor back again - and that is a GOOD INVESTMENT (to me anyday!)
 
Gl with this - it worked for me and may help you out too!
 
73 and CU in the CONTEST on 160M this weekend from VY2ZM.
 
Please give me a call if you are on the band - thanks!
 
 JEFF
 
_K1ZM@aol.com_ (mailto:K1ZM@aol.com) 
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