[Hallicrafters] New QTH

[Roy Morgan]

At 09:21 PM 4/10/2005, DW Holtman wrote:
...what is the best way to make a hole for coax/450 ohm ladder line  to 
leave the shack?

Coax is one thing, Ladder line is another.  Coax needs only a hole big 
enough for it's connector to pass through. If you are going through normal 
thickness walls, you can get long barrel PL-259 type connectors at RF 
Connections and other places.

Ladder line should not pass nearer than five to ten times its conductor 
spacing from any metal, and may carry very high voltages at different 
points along it's length.

I replaced one cellar window pane with Plexiglas. Now I can easily drill 
holes for coax feed - through connectors and for five way binding posts for 
my ladder lines.  The line solders to the bottom of the binding posts on 
the outside and inside I use standard three quarter inch connectors for 
hooking up the antenna to my tuner, or to ground when not in use.

The second floor of my house overhangs the first floor by a foot and a 
half  at the rear, and I have installed Fiberglas electric fence posts to 
hold my ladder line away from the aluminum siding of the upper story.  I 
drilled holes to hold the same fence posts in the brick siding where 
needed, and fastened the fence post into the hole with a wedge of 
wood.  Tie wraps fasten the ladder line to the end of the post through 
holes drilled in the shaft.

Do wear gloves at all times when handling Fiberglas fence posts, they will 
give you splinters if you don't.

Roy