Build a GSM network question!

Posted: 07-13-2003, 10:15 AM

Alex2k

Posts: n/a

I have a big (or maybe not) question about GSM.....Imagine this scenario,
you are the owner of a small island in the middle of nowhere and you live
there with other people (I wish it was my case....LOL).

What you want is free comunication between you all. I thought that one could
use GSM. In this case who should you contact to buy a GSM antenna and SIM
cards that allow cellphones to connect to the antenna and call the other
cellphones? let's say that cellphone 1 can be called by dialing 1 and so on.

How expencive would the solution be?

Well.....I was just wondering! Thanks for the answers!

PS also pretend that you wouldn't need a license to operate the network
because that's your own state.

PS2 what if you lived in a state where the 1900mhz (or 900, or 850 or
1800mhz) band is free for use (like 2.4ghz is)......would it be illegal to
build a private GSM network made up by one antenna?.....one could use
cellphone as a sort of long range cordless phones! .....and calls beween the
phones would be for free (naturally).

Responses to "Build a GSM network question!"

Frank

Posts: n/a

Re: Build a GSM network question!

Posted: 07-13-2003, 12:02 PM

"Alex2k" <NOSPAMalex2kREMOVE@libero.itREMOVE> wrote in message
news:kq9Qa.6461$sj6.117301@tornado.fastwebnet.it.. .
> I have a big (or maybe not) question about GSM.....Imagine this scenario,
> you are the owner of a small island in the middle of nowhere and you live
> there with other people (I wish it was my case....LOL).
>
> What you want is free comunication between you all. I thought that one
could
> use GSM. In this case who should you contact to buy a GSM antenna and SIM
> cards that allow cellphones to connect to the antenna and call the other
> cellphones? let's say that cellphone 1 can be called by dialing 1 and so
on.
>
> How expencive would the solution be?
>
> Well.....I was just wondering! Thanks for the answers!
>
> PS also pretend that you wouldn't need a license to operate the network
> because that's your own state.
>
> PS2 what if you lived in a state where the 1900mhz (or 900, or 850 or
> 1800mhz) band is free for use (like 2.4ghz is)......would it be illegal to
> build a private GSM network made up by one antenna?.....one could use
> cellphone as a sort of long range cordless phones! .....and calls beween
the
> phones would be for free (naturally).

http://www.aircom.com/pr_airsite.htm

jer

Posts: n/a

Re: Build a GSM network question!

Posted: 07-13-2003, 01:30 PM

Frank wrote:

> http://www.aircom.com/pr_airsite.htm

That's a cute little dongle, but it's use depends on having an
existing system to plug it into.

--
jer email reply - I am not a 'ten' ICQ = 35253273
"All that we do is touched with ocean, yet we remain on the shore of
what we know." -- Richard Wilbur

Matthew Smith

Posts: n/a

Re: Build a GSM network question!

Posted: 07-13-2003, 02:17 PM

In article <kq9Qa.6461$sj6.117301@tornado.fastwebnet.it>,
"Alex2k" <NOSPAMalex2kREMOVE@libero.itREMOVE> wrote:

> I have a big (or maybe not) question about GSM.....Imagine this scenario,
> you are the owner of a small island in the middle of nowhere and you live
> there with other people (I wish it was my case....LOL).
>
> What you want is free comunication between you all. I thought that one could
> use GSM. In this case who should you contact to buy a GSM antenna and SIM
> cards that allow cellphones to connect to the antenna and call the other
> cellphones? let's say that cellphone 1 can be called by dialing 1 and so on.

Why would you use GSM? You have a requirement for wireless
telecommunications network but have just restricted your solution to
using GSM. You may find a system like DECT just as good, and cheaper.
GSM was not designed for a private network. Of course, one of the
features of GSM, roaming, would be useless for a private network.

You also cannot say how expensive a solution would be without knowing
how big the actual coverage area is. You may need only one base station.
You may need more.

--
Matthew Smith
(to reply via email remove xxx)

Ted Teofilak

Posts: n/a

Re: Build a GSM network question!

Posted: 07-20-2003, 05:25 PM

Don,

The cost of a site is the average of all of the costs of building a network
(switch, HLR, VLR, etc). The cost to build a site these days is down to
around $300k or less (includes base station, engineering, cables,
construction).

The cost to build a tower is around $125k. Most cell companies now rent
from tower companies instead of building their owm towers.

To install a UHF or VHF link can be done for less than $50k.

Ted T.

"Donald Newcomb" <d_r_newcomb@my-deja.com> wrote in message
news:94aaf905.0307140542.4bfdca13@posting.google.c om...
> "Alex2k" <NOSPAMalex2kREMOVE@libero.itREMOVE> wrote in message
news:<kq9Qa.6461$sj6.117301@tornado.fastwebnet.it> ...
> > What you want is free comunication between you all. I thought that one
could
> > use GSM.
>
> I have been told that a small (single tower) iDEN system is over a
> million US dollars. I would suspect that a GSM system would run
> slightly less. In the scenario you describe, a simple UHF or VHF
> repeater could do the same job for a few thousands.
>
> Donald Newcomb
> DRNewcomb (at) attglobal (dot) net

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