[BC] Metro PCS Cables on tower

[Mike McCarthy]

Well...this is going to become a greater concern.  I recently received a 
note from AT&T about running DC cables up a tower for pre-amps and other 
things up there. You can't run DC other than through an iso-choke OR a 
conduit if used as a bazooka. For closely located tower sites, this adds 
a new dimension to the woes faced by AM folks fighting to keep their 
patterns in spec.

MM

On 12/4/2011 5:45 AM, Alan Alsobrook wrote:
> Dana Puopolo wrote:
>> I once saw this in reverse. They ran all the coaxes up the tower and grounded
>> each one at the tower base-then insulated them until they all connected to the
>> tower about 125 feet up.  Then they insulated the tower base and series fed
>> it. In essence, they used the bottom of the tower as a skirt and the lines as
>> the tower.
> If the tower is a 1/4 wave tall this is probably the best way to do it.
> Isocouplers will likely cause their equipment serious troubles. With 1/4
> stubs you'll be able to series feed the tower, and they will not need
> isocouplers.
>