Slashdot Mirror

← Back to Domains

Domain: opentrac.org

Stories and comments across the archive that link to opentrac.org.

Comments · 2

  1. Re:Ham radio users - ampr.org by Cerlyn · · Score: 4, Informative · on Hams Complain about Powerline Broadband

    Packet radio is extremely routable. TCP/IP is one way we do it, but actually is not the most common method.

    As another poster pointed out, amateur radio operators mainly use AX.25. Both TCP/IP and AX.25 are X.25 derivatines. AX.25 identifiers are Amateur Radio callsigns with numeric suffixes (such as "N0CALL-10"). AX.25 routing is done by broadcasting while gradually incrementing your TTL until someone hears them for you (if they aren't your immediate neighbor), or manually entered information (either as a route table or "Connect to SOME1 via SOME2, SOME3, SOME4").

    There are also a few other ways (such as NETROM and ROSE) amateur radio operators can route information digitally. While it would be a stretch, NETROM could be considered our equivalent of BGP router advertising and periodic route annoucements. ROSE is a polled system similar to Token Ring.

    We also have our share of propritary speedup techniques (such as KA-NODE from Kantronics) and experiemental protocols as well.

  2. Obligatory plug... by Rorschach1 · · Score: 3, Interesting · on Military Tech: GPS and Networking
    Many /.'ers are probably already familliar with APRS for position reporting over ham radio. APRS has some serious limitations, though, and there's an effort to develop a new, extensible, open protocol at opentrac.org. Things are just starting to take off, with prototype hardware in use and a couple of test programs written. Check it out and see what you can contribute.

    My personal goal: A poor man's Land Warrior system for paintball scenario games. =]