i think my radio already comes with antenna like that.

It's called "compact antenna" on this page.
http://www.sony.jp/products/Consumer.../ICF-SW7600GR/
It improves reception markedly but still many stations are suffering
from the problems i described earlier.

thank you for replying

wrote in message
...
Get about 18 to 22 inches of thin wire and wrap (or attach an alligator
clip to one end of the wire) a bare end of the wire a couple of turns
around your radio's antenna.Mount the other end of the wire on a wall
useing a piece of tape or a thumbtack.
cuhulin