[BC] Wireless Internet Installation on AM Tower

[Bob Groome]

If the AM is non-DA, you might just want to put up a few sections of TV type tower on the site for the Motorola Canopy. 
There was a station in either NY or PA that put up a M/A Com 23 GHz system on a hot AM tower. I seem to recall that it was just a run of coax with a block to break out the DC power. They used a Kintronic isolation coil made of coax that seemed to work OK. But the Motorola uses six wires, not coax. But along this thought process, why not try two three wire tower lighting chokes? That would get the six wires across the tower base. Actually, you'd need three as one of the wires is ground.
But you will still may need to keep the AM RF out of the CAT wiring. Chokes in series with each of the six wires and then caps to ground from the choke in and out (a PI section tuned to the AM frequency).
If it's a shunt feed tower (the tower is grounded) you can just run it up the tower (RFI still must be addressed).

-- 
Bob Groome
Personal Web Site is: www.bobgroome.com
Work E-mail is: bgroome at eriinc.com
 

--- On Tue, 7/7/09, RichardBJohnson at comcast.net <RichardBJohnson at comcast.net> wrote:

From: RichardBJohnson at comcast.net <RichardBJohnson at comcast.net>

Well you did not give much information. However, you need to get your 100-baseT network wire across the base insulator without shorting anything out, and you need to keep the tower's RF out of your network.