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Re: [RFI] Linksys Router Birdies

To: RFI@contesting.com
Subject: Re: [RFI] Linksys Router Birdies
From: Charlie Gallo <Charlie@TheGallos.com>
Reply-to: Charlie Gallo <Charlie@TheGallos.com>
Date: Thu, 11 Mar 2010 21:20:10 -0500
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
On 3/11/2010 Tony wrote:

> All,

> What is the best method of getting rid of router birdies? ...snip...

> Tony -K2MO

I did something SLIGHTLY different than most - I used a Type32 ferrite, but I 
used a fairly small one - 1/2" inner, about 3/4" long, which will NOT fit the 
RJ-45 plug through it, so I cut them off, put 3-4 wraps (as many as would fit), 
and put a new end on (I usually make my own cables, so this was no big deal).  

One interesting thing I found - MOST of the RFI was NOT coming from the router 
end of the cable, but from the PC end!  MUCH greater reduction in signal if I 
put the ferrite on the PC end.  Of course, I ended up doing BOTH ends.  My 
birdies went from S9 to about S1, which is my background level on a GOOD  day 
(on a BAD day, I have S7 background from DC to daylight here)  (my antenna is a 
DX-EE 20ft or so straight up over my shack)

73 de KG2V

For the Children - RKBA!

My Website: http://www.thegallos.com
My Blog: http://kg2v.blogspot.com

Any given program, when running, needs debugging. 
 Any debugged program is obsolete.

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