[TowerTalk] Cellular Antennas on Building Roofs

[Guy Olinger, K2AV]

Contrary to Ham Radio antennas, and the highest ERP money can buy,
cellular is deliberately limited range. The same frequencies have to be
reused over and over again, especially tightly in dense areas. The
antennas are quite sharp, the transmitters QRP by our standards.
Sometimes cellular antennas have to be lowered and transmitter power
reduced because the transmitted signals are going too far, and screwing
up an adjacent cell.

12-15 feet below the antennas anywhere on the roof  I doubt you could
find even a milliwatt to measure. Perfectly safe. That celphone next to
your head is a lot stronger.

-----------------

Guy Olinger
k2av@contesting.com
Apex, NC, USA

----- Original Message -----
From: Larry Burke WI5A <lburke@wt.net>
To: <towertalk@contesting.com>
Sent: Tuesday, December 26, 2000 9:34 PM
Subject: [TowerTalk] Cellular Antennas on Building Roofs


>
> There's a six or seven story office building not too far from here
that has
> what appear to be cellular system antennas mounted directly on the
rooftop
> (no tower). Looks like they are maybe 12-15 feet above where workers
on the
> top floor of the building would spend most of their day. Given all the
> recent emphasis on RF safety it would seem this is coming a bit close
for
> comfort, particularly at that frequency. Not knowing a lot about this
type
> of antenna or service personally, can anyone out there shed light on
how
> this installation might be considered acceptable?
>
> Larry Wi5A
>
>
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