On Wed, 31 May 2006 06:40:10 -0700, SMS <[email protected]>
wrote in <[email protected]>:

>The problem is that the range of a CDMA tower (practically speaking
>around 62km) is less than the range of an AMPS tower (depends on the
>height, but typically around 80km), and the range of a GSM tower (35km)
>is _much_ less than an AMPS tower. So it isn't just converting towers,
>it's adding a lot more towers. While 80km versus 62km doesn't seem like
>much, moving towers around isn't practical, so if you're looking at a
>linear highway in a flat area, you're still doubling the number of
>towers for CDMA, and tripling the number for GSM. CDMA does have a big
>advantage in this regard.

In fact both GSM and CDMA are capable of 80 km range and better.

>Australia choose CDMA for the boonies, and GSM for European
>compatibility in urban areas. The U.S. will probably end up with CDMA in
>rural areas, and GSM and CDMA in urban areas. GSM was well-suited for
>densely populated European countries, but is less practical in countries
>where there are large unpopulated areas that still need coverage.

Wrong again. Extended range GSM can go up to 120 km; e.g.,
<http://www.motorola.com/content.jsp?globalObjectId=2050-8217-8223>
<http://www.mobilecomms-technology.com/projects/gsm_morocco/>

--
Best regards, SEE THE FAQ FOR CINGULAR WIRELESS AT
John Navas <http://en.wikibooks.org/wiki/Cingular_Wireless_FAQ>


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