Hi,

I have a scanner (or whatever else I plug in to the coax at the time)
fed by a discone that's about 8 feet from my 2m/440 large vertical
antenna. I run at most 50W into the vertical, usually just 5W, and
have yet to run into any major overload problems into the scanner. At
most, it just stops recieving but I haven't blown anything yet,
probably because it's a 120ft RG-8 run. lossy Anyway I'd like to
put a pre-amp at the antenna on the recieve only feed and am worried
that I could overload the pre-amp while transmitting on the other
antenna. What to do here? Relocating it further away would be a last
resort. Shutting the recieve side off during TX is fine. Is there
some remote rf sensing auto coax disconnect device out there?

73
J