Do a Google search on CCrane. They sell a couple of antennas that should
help you out. One is the Select-A-Tenna. It is a loop such as Jim referred
to. It works quite well. Improves reception dramatically and is directional
with good nulls to kill the noise. The second mounts outside and runs into
the radio via cable. There is a ferrite bar that attaches to the radio so no
connection required.

"Jim" wrote in message
...
I say it is worth the try.

The interference may not be directly from the DSL modem itself, but
leaking
from the cables. If I recall correctly, the DSL signal (at least here in
the USA) is a couple of watts somewhere aorund the AM broadcast band. So
you essentially have a 2 watt transmitter pumping out wide-band trash
within
a few meters of your receiver.

There used to be a 'AM signal booster' available. All it consisted of was
a
coil of wire about 8 inches in diameter witha variable capacitor for
tuning. You just placed it next to your AM radio and the coil coupled
into
the built-in loopstick antenna.

Jim
N8EE