[sudoroom] raspberry pi mobile phone network

[Steve Berl]

Interesting presentation. Seems it could be legal. Not sure about the
restrictions on commercial traffic for ham bands. You would not want people
to be buying or selling anything over the phone or you would violate the
ham license. But...

Back to the original idea, beyond the coolness factor, what would be the
purpose of doing this? I can see how one might create a small coverage area
cell phone network that might handle the phones in a building size area.
Would the idea be to have anyone that wants to set one of these up and then
network them all together (over the Internet?) to create a sort of amateur
cell phone network?

-steve


On Sat, Dec 22, 2012 at 7:33 PM, Andrew <andrew at roshambomedia.com> wrote:

> tl;dr ... http://youtu.be/DU8hg4FTm0g?t=8m28s
>
>
> On Sat, Dec 22, 2012 at 7:23 PM, Andrew <andrew at roshambomedia.com> wrote:
>
>> It's actually possible to do this legally. I am no lawyer, I don't even
>> have a ham license, but from what I understand you can operate in the
>> 900mhz range with a ham license and most modern phones will pick it up.
>> There are a few more details like you have to broadcast your ID or what
>> not, but it's possible and people have done it. (see NinjaTel, and this...
>> http://www.youtube.com/watch?v=DU8hg4FTm0g ).
>>
>> --Andrew
>>
>>
>> On Sat, Dec 22, 2012 at 7:14 PM, Leonid Kozhukh <len at ligertail.com>wrote:
>>
>>> quick google search yields an open source alternative:
>>> http://dangerousprototypes.com/2012/03/20/introducing-rtl-sdr-a-20-sdr/
>>>
>>> even at $1k price point, remember you are replacing a 200ft hunk of
>>> metal + electronics that many people have died servicing. these are the
>>> types of things that im perfectly willing to take on legal risk and find
>>> financing for as they are that important and impactful...
>>>
>>>
>>> On Sat, Dec 22, 2012 at 10:04 PM, Steve Berl <steveberl at gmail.com>wrote:
>>>
>>>> In the video that "extra hardware" is an Ettus Research USRP SDR radio.
>>>> Probably cost around $1000.
>>>>
>>>> You also wouldn't want to do this outdoors because your base station
>>>> would interfere with the commercial cell phone base stations, and I think
>>>> the phone company would hunt you down pretty quickly.
>>>>
>>>> Now if you could figure out how to make your own SIM cards, and had
>>>> unlocked phones ....
>>>>
>>>> -steve
>>>>
>>>>
>>>> On Sat, Dec 22, 2012 at 6:25 PM, Leonid Kozhukh <len at ligertail.com>wrote:
>>>>
>>>>>  apparently its possible (illegal) to replace large cell towers with
>>>>> raspberry pis and open source software:
>>>>> http://www.newelectronics.co.uk/electronics-news/basestation-created-on-raspberry-pi/46960/
>>>>>
>>>>> anyone down to get this working?
>>>>>
>>>>> --
>>>>> len
>>>>>
>>>>> founder, ligertail
>>>>> http://ligertail.com
>>>>>
>>>>> _______________________________________________
>>>>> sudoroom mailing list
>>>>> sudoroom at lists.hackerspaces.org
>>>>> http://lists.hackerspaces.org/mailman/listinfo/sudoroom
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> -steve
>>>>
>>>
>>>
>>>
>>> --
>>> len
>>>
>>> founder, ligertail
>>> http://ligertail.com
>>>
>>> _______________________________________________
>>> sudoroom mailing list
>>> sudoroom at lists.hackerspaces.org
>>> http://lists.hackerspaces.org/mailman/listinfo/sudoroom
>>>
>>>
>>
>>
>> --
>> -------
>> Andrew Lowe
>> Cell: 831-332-2507
>> http://roshambomedia.com
>>
>>
>
>
> --
> -------
> Andrew Lowe
> Cell: 831-332-2507
> http://roshambomedia.com
>
>


-- 
-steve
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