View Single Post
  #7   Report Post  
Old April 7th 06, 01:14 AM posted to rec.radio.amateur.antenna
Sal M. Onella
 
Posts: n/a
Default Must 300 ohm feedline be kept completely clear of contact w anything?


"Thomas anonymous" wrote in
message . ..

Well, that's what you call a definitive answer, hi. I live on the
Canadian Wet Coast, near Vancouver --- you could say moisture is
sometimes a factor around here ...


Thx and 73 from Canada


--
Thomas anonymous


Thomas,

Belden made a product called "Shielded Perm-ohm" 300 ohm shielded twin
lead. It apparently still exists, but not with that name. Go to
http://www.fairradio.com/wirean.htm and search for it. The
product is now called "City Color," according to that web page.

Some years ago I used it to pass perfect TV signals through a 15-foot
conduit
out of my attic . (An earlier attempt with regular twinlead was a
disaster.) I
believe the shielded twin lead has slightly less loss than coax.