"Art Unwin" wrote in message
...

"What I use on 7/8 hardline is a copper reducer with a barrel connecter
soldered into one end and then I screw the combination over the hard line.
Now you have an output from the hardline that can fit most things . One
time I filled the copper reducer with dielectric before I inserted the
barrel connecter but could see no difference using max power. Certainly a
lot cheaper than Andrews connectors and if the coax route is not ideal it
is easy and inexpensive to add flexible lengths at tight corners, such as
emerging from underground piping. Hardline gets extremely rigid and the
outer insulation is subject to cracking in the winter time which is when I
seem to have to work on things."

Just remember that the aluminum to copper galvanic couple promotes the
corrosion of the aluminum. Keep the contact areas as dry as possible if
you don't want problems. I have found that wrapping several layers of
tightly stretched vinyl electrical tape and then spraying the area with
clear Krylon® acrylic varnish does a reasonable job. But since water vapor
can diffuse through the tape, you will need to check the connection
periodically.

73, Dr. Barry L. Ornitz WA4VZQ