TT:
This construction of shorter, more numerous towers is known as cell
splitting. It's how cellular/PCS network operators can increase the number
of RF channels available to subscribers in a market without requiring
additional RF spectrum - theoretically. The shorter towers reduce the range
of RF coverage, thereby making the same frequencies available for
interference-free reuse elsewhere in the network. But then additional cells
must be constructed to fill in the gaps, as Gary wrote below.
I say theoretically because eventually the laws of economics supercede
the laws of physics. While it's possible to reduce the power levels of both
mobile and base transmitters so their range is limited to a few hundred
meters, it still costs $$ for the cell sites' electronics (equipment costs
don't split linearly when a cell's coverage is split over and over.) So the
cost-per-new-subscriber starts to increase. That's when network operators
start to look for more spectrum (buying out a competitor, perhaps?)
FWIW.
73 de
Gene Smar AD3F
-----Original Message-----
From: mcduffie@actcom.net <mcduffie@actcom.net>
To: towertalk@contesting.com <towertalk@contesting.com>
To: <towertalk@contesting.com>
Date: Saturday, July 27, 2002 4:12 PM
Subject: Re: [Towertalk] Insuring Antenna @ Remote Site
>On Fri, 26 Jul 2002 22:32:52 -0700, Chris BONDE wrote:
>
>> the telcos have started to put
>> the cells at lower heigths and more of them, easier to maintain!
>
>I doubt it is because they are easier to maintain. Like packet nodes, cell
>sites should NOT be in high coverage areas when they begin to be heavily
>populated. It's fine when they first start out, but when they get used a
>lot they need to come down to lower altitude to decrease coverage and put
>more of them in to fill in the gaps. It's a natural progression.
>
>Gary
>
>a g 0 n at a r r l dot n e t
>http colon slash slash mcduffie dot ws
>--
>_______________________________________________
>Self Supporting Towers, Wireless Weather Stations, see web site:
http://www.mscomputer.com
>Call 888-333-9041 to place your order, mention you saw this ad and take an
additional 5 percent off
>any weather station price.
>_______________________________________________
>Towertalk mailing list
>Towertalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
|