<div dir="ltr">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...<div>
<br></div><div style>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?</div>
<div style><br></div><div style>-steve</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Dec 22, 2012 at 7:33 PM, Andrew <span dir="ltr"><<a href="mailto:andrew@roshambomedia.com" target="_blank">andrew@roshambomedia.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">tl;dr ... <a href="http://youtu.be/DU8hg4FTm0g?t=8m28s" target="_blank">http://youtu.be/DU8hg4FTm0g?t=8m28s</a></div>
<div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Dec 22, 2012 at 7:23 PM, Andrew <span dir="ltr"><<a href="mailto:andrew@roshambomedia.com" target="_blank">andrew@roshambomedia.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">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... <a href="http://www.youtube.com/watch?v=DU8hg4FTm0g" target="_blank">http://www.youtube.com/watch?v=DU8hg4FTm0g</a> ).<div>
<br></div><div>--Andrew</div></div><div class="gmail_extra"><div><div><br><br><div class="gmail_quote">On Sat, Dec 22, 2012 at 7:14 PM, Leonid Kozhukh <span dir="ltr"><<a href="mailto:len@ligertail.com" target="_blank">len@ligertail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">quick google search yields an open source alternative: <a href="http://dangerousprototypes.com/2012/03/20/introducing-rtl-sdr-a-20-sdr/" target="_blank">http://dangerousprototypes.com/2012/03/20/introducing-rtl-sdr-a-20-sdr/</a><div>
<br></div><div>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... </div>
</div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sat, Dec 22, 2012 at 10:04 PM, Steve Berl <span dir="ltr"><<a href="mailto:steveberl@gmail.com" target="_blank">steveberl@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">In the video that "extra hardware" is an Ettus Research USRP SDR radio. Probably cost around $1000.<div>
<br></div><div>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.</div>
<div><br></div><div>Now if you could figure out how to make your own SIM cards, and had unlocked phones ....</div><div><br></div><div>-steve</div></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div>
On Sat, Dec 22, 2012 at 6:25 PM, Leonid Kozhukh <span dir="ltr"><<a href="mailto:len@ligertail.com" target="_blank">len@ligertail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div>
<div dir="ltr">apparently its possible (illegal) to replace large cell towers with raspberry pis and open source software: <a href="http://www.newelectronics.co.uk/electronics-news/basestation-created-on-raspberry-pi/46960/" target="_blank">http://www.newelectronics.co.uk/electronics-news/basestation-created-on-raspberry-pi/46960/</a><div>
<br></div><div>anyone down to get this working?<span><font color="#888888"><br clear="all"><div><br></div>-- <br><div>len</div><div><br></div>founder, ligertail<div><a href="http://ligertail.com" target="_blank">http://ligertail.com</a></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br></div></div>-------<div>Andrew Lowe</div><div>Cell: <a href="tel:831-332-2507" value="+18313322507" target="_blank">831-332-2507</a></div><div><a href="http://roshambomedia.com" target="_blank">http://roshambomedia.com</a></div>
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