Topband: ADSL 160 meter RFI problems
Tom Rauch
w8ji at contesting.com
Thu Jan 3 16:42:51 EST 2008
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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