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Topband: ADSL 160 meter RFI problems

To: <Topband@contesting.com>
Subject: Topband: ADSL 160 meter RFI problems
From: "Tom Rauch" <w8ji@contesting.com>
Reply-to: Tom Rauch <w8ji@contesting.com>
Date: Thu, 3 Jan 2008 16:42:51 -0500
List-post: <mailto:topband@contesting.com>
I had ADSL installed last month because I was having 
problems receiving and sending mail via my remote mail host. 
BellSouth is actually where the problem was at for email. 
:-)

Anyway despite having a very clean installation (shielded 
buried phone lines) and antennas several hundred feet away 
from the ADSL system and phone lines.... 160 would just kill 
the DSL modem. Even a dipole 300 feet high and 400 feet away 
that had little RF in any of the lines would knock the modem 
off line. I even built a very good 160 notch filter and 
could not cure it.

The original modem was a Netopia 2210-02 modem. It's a tiny 
little silver modem.

ATT sent me a 2701HG-B Gateway as a no charge exchange and 
all the problems vanished. Even beaming straight into the 
building where the modem is or using a dipole right outside 
the building doesn't cause any connection problems. (I still 
have the 160 notch filter I built in line.)

73 Tom

 

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