Topband: Topband Tower Antenna With Two meter Vertical

[Jim Brown]

On 4/15/2012 11:38 AM, Herb Schoenbohm wrote:
> Remember if you run a three or four wire cage to the top of the tower it
> is the cage, not the tower, that does most of the radiation.

Right.

> This I
> would think makes running cable inside the tower not important.

My tower climbers feel that inside the tower also makes it safer to 
climb -- they're taped to a leg all the way up.

> Additionally, with crank ups running cables inside a tower can be a real
> mess.  On crank up cables need some sort of offset.  OK, just make a
> cage that is space much farther away from the tower than the drop wires
> and coax.  This should be better than having  your coax and rotor cables
> chewed up when you do the crank down procedures at night with an
> approaching storm.

Obviously crankups are a very different kettle of fish mechanically.  
Like anything else, it's a compromise.

73, Jim K9YC