City wide coverage?

How do large companies typically offer wifi coverage for a
large city such that no matter where you are, you can pretty
much connect?

Is this done by multiple antennas, high power APs, what factors
are involved.

SteveC wrote:
> How do large companies typically offer wifi coverage for a
> large city such that no matter where you are, you can pretty
> much connect?
>
> Is this done by multiple antennas, high power APs, what factors
> are involved.
Hi,
Maybe via the bird in the sky?

"SteveC" <(E-Mail Removed)> wrote in message
news:hr5rge$4qu$(E-Mail Removed)...
> How do large companies typically offer wifi coverage for a
> large city such that no matter where you are, you can pretty
> much connect?
>
> Is this done by multiple antennas, high power APs, what factors
> are involved.

search on things like - metro wifi -

Jeff Liebermann <(E-Mail Removed)> wrote in
news(E-Mail Removed):

> On Tue, 27 Apr 2010 05:08:30 +0000 (UTC), SteveC
<(E-Mail Removed)>
> wrote:
>
>>How do large companies typically offer wifi coverage for a
>>large city such that no matter where you are, you can
pretty
>>much connect?
>>
>>Is this done by multiple antennas, high power APs, what
factors
>>are involved.
>
> <http://www.muniwireless.com>
> <http://en.wikipedia.org/wiki/Mesh_networking>
>
> Sector or omni antennas, 4-12 access points per square
mile, mesh
> networks or expensive backhauls, creative billing and
advertising,
> etc. High power sucks, but is all too common. I really
don't want to
> explain all the various "factors".

<snip>

Why do you think high power "sucks"? Shouldn't everyone be
able to have a wifi broadband connection?
I was just wondering how it is that no matter where I point
my parabolic reflector antenna, I am able to connect to a
certain company here.

"SteveC" <(E-Mail Removed)> wrote in message
> Why do you think high power "sucks"?

you obviously have never played with 2-way radio systems...
or Ham radio repeater systems...

> Shouldn't everyone be
> able to have a wifi broadband connection?

is that an entitlement - or pay as you go ?
Again, several muni/metro systems have been deployed and folded...

> I was just wondering how it is that no matter where I point
> my parabolic reflector antenna, I am able to connect to a
> certain company here.

well - where is HERE ?
and what is the COMPANY ?