Well almost, the design in my head is like a modern WiFi router, but with a tad bit more server. We should just add a modem circuit to a router circuit and do it as a Ethernet attach.
But if you wanted to be more futuristic ( and a bit more expensive ) could just get one of these http://www.ettus.com/products and use the GNu-Radio stack http://gnuradio.org to become the radio itself. Thus could use any frequency ( like Star Trek or Star Gate ) But back to reality are there any projects that can take low cost GMRS radios and deliver 9600bps-1mbs? If not then can we get the right people together and propose something? I sure between me you and Ed we can design something... On Sun, May 1, 2011 at 7:29 PM, Chris Knadle <[email protected]>wrote: > On 2011-05-01 17:14, Joseph Apuzzo wrote: > >> Yup saw that article. >> >> I guess what I want, which I can't find is the following: >> 1) Taken cheap/affordable GMRS radios ( can get a pair of 36-Mile ones >> for around $70 ) >> 2) Build a Modem that does 9600bps ( >> http://www.amsat.org/amsat/articles/kd2bd/9k6modem/ ) or can the >> software one be used? >> > > The software method I was discussing earlier used the sound card for doing > AFSK, but the faster 9600 baud used at 70cm an up uses FSK rather than AFSK, > so I'm not sure if it'll support that or not. > > > 3) Then create a Linux stack that in effect can pass information in >> a diaspora kinda way, some sort of ad-hoc mesh routeing that can include >> the Internet. >> > > Okay, something to keep in mind is that anything sent over packet radio > must be non-encrypted. However other than that one concern, the hardware to > do what you want already exists. For instance, one of the things I tried in > the mid-90's was sending "packet email" of sorts to an packet <-> internet > gateway that was located in Arizona. It slowly got routed between nodes > somehow until it got to the packet gateway, then was sent out via email over > the internet. > > That's the good news; the bad news is it took an entire week. I was amazed > it worked at all, tell you the truth -- but it worked on the first shot. > > These days there are likely far more packet <-> internet gateways available > (that are closer by), or it may be easy enough you could build your own > (because these days internet access is far more available than it was back > then) -- so you can definitely do what you're thinking of trying. It's just > a matter of the details of specifically how to do it. > > > That is let's say the hardware existed ( humor me ) >> Could a old school "store and forward" mesh/ad-hock network be created? >> Then could that said network be used for emergencies ( Think >> http://sahanafoundation.org/ ) when needed >> and development/socialization when not? ( Think >> https://joindiaspora.com/ ). It would also need a layer that could route >> on and off the existing Internet. That is it would be kinda cool to do >> thinks like what OLPC does with it's routeing ( Think >> >> http://www.teleread.com/ebooks/could-olpcs-mesh-net-work-in-us-rural-areas/) >> >> So I guess we start building the modem first then coding the stack? >> > > I think it's mainly "just the modem" you need to worry about. The rest has > to do with details and understanding of how Packet Radio works and how the > various packet radio systems can be used. > > > -- > -- Chris > > -- > Chris Knadle > [email protected] > _______________________________________________ > Mid-Hudson Valley Linux Users Group http://mhvlug.org > http://mhvlug.org/cgi-bin/mailman/listinfo/mhvlug > > Upcoming Meetings (6pm - 8pm) MHVLS Auditorium > May 4 - Inkscape > Jun 1 - Zimbra > Jul 6 - Jul 2011 >
_______________________________________________ Mid-Hudson Valley Linux Users Group http://mhvlug.org http://mhvlug.org/cgi-bin/mailman/listinfo/mhvlug Upcoming Meetings (6pm - 8pm) MHVLS Auditorium May 4 - Inkscape Jun 1 - Zimbra Jul 6 - Jul 2011
