--- Eater <[EMAIL PROTECTED]> wrote:
> > Sounds fun. Have you looked into the equipment cost? > > It's limited to something like 9600 bps iirc... > I think the bandwidth limitation differs by frequency band - e.g. I can remember when I was [very] young hearing satellite telemetry on shortwave radio - I'm not sure how that relates to packet radio networking, but it does mean to me that some fairly substantial bandwidth is available at some frequencies... I know also that there are a number of HAMs doing WiFi and [almost certainly] doing packet <-> WiFi and packet <-> wired TCP/IP bridging. I ran across some guys doing that when I was in Michigan a few years ago, but I don't have the URLs handy. I think the main requirement for setting something like that up would be that we have a licensed HAM operator to oversee the equipment - as I understand it [keep in mind that my knowledge of HAM is quite dated] "shortwave" frequency transmitters require FCC licensed operators. There is also [iirc] a requirement that the radio data transmissions be very short duration, hence the "burst" or "packet" terminology. I have also heard that it is legal to send data across the citizens band (CB) frequencies provided that the transmissions are short bursts - for some reason "9 seconds" sticks in my mind as the allowed transmission length, but on the other hand, I might just be making this up from random neuron firings in my fevered brain... I should probably look it up. Are there any HAMs in the Freenet/CHAOS group? An interesting idea, imo, especially since I have been told [by RF engineering types] that certain frequencies have better "penetration" characteristics e.g. during inclement weather or in "clutttered" environments. > On 10/24/07, andrew kesterson <[EMAIL PROTECTED]> wrote: > > > > I'm not super-educated on this particular subject yet, so > take me with > > a grain of salt here. > > > > So for various reasons, Linux's AX25 (packet over HAM > radio) support > > has had me fascinated recently. (The fact that I cannot get > broadband, > > outside of satellite, at my current location has ... only a little > to do > > with it. :-) ) > > > > Have you guys ever thought of something like this as a part > of CFN? > > It's definitely a "niche" service, however, it is a pretty cool > idea. > > The way CFN is now, anyone with wifi can go downtown and hook in - > but > > if AX25 was supported, anybody who has HAM gear could (from what I > > understand) hook up to the CFN station via TCP/IP and have a > gateway out > > to the larger world. It's especially cool once you consider the > idea of > > that same HAM station being a wireless access point of its own.. If > one > > thinks about it long enough, one can easily see how this would > solve the > > problem of CFN being too localized to downtown. This strategy would > > easily let CFN spread all over town to other local access points, > where > > 802.11 would have trouble reaching, and where other standards > (WiMax, > > xMax, etc) might prove too expensive. > > > > I'm really excited by the idea. But there must be a reason > it hasn't > > been exploited yet, I am sure. What do you guys all think? > > > > > > > > > > -- > E a t e r > http://eater.org/ > > > > 0x0000 --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "CHAOS706.ORG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/chaos706?hl=en -~----------~----~----~----~------~----~------~--~---
