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Why not stick with AX.25 and packet radio instead of reinventing the wheel?
by keepquestioning 4y ago
Why not stick with AX.25 and packet radio instead of reinventing the wheel?
- thombles 4y agoEncryption is one of the stated goals, which is illegal for packet radio in most jurisdictions. Also requiring a licence to transmit (no matter how easy/cheap it is to obtain) is a barrier to adoption that must be considered.
- vvanders 4y agoAX.25 is anything but modern. No FEC, floods easily and has other constraints. I don't know why but there doesn't really seem to be a push to so better on FM digital modes compared to what you see with FT-8.
- cschmittiey 4y agoVARA FM offers high speeds on FM from what I’ve seen. Haven’t actually played with it myself though. Might be worth checking out!
- Saris 4y agoI play around with APRS here and there, and you either have a cheap setup, like a radio plugged into your smartphone which is bulky and messy with wires hanging around. Or you shell out a large amount of money for a (still bulky) radio that can do APRS natively. It feels like outdated tech to me, all the hardware is generally big, slow, power hungry, and expensive. The APRS system also has issues with timing and flooding a channel if there are too many stations in one area.
- sliken 4y agoNot sure what you mean by bulky, but these seem pretty small to me: https://www.wimo.com/en/picoaprs https://www.wimo.com/en/picoaprs Seems pretty common to put similar bare boards in people playing with high altitude balloons. Sure APRS has limits, but keep in mind that you don't have to use the "APRS" frequencies, for high density uses like say a bike/horse/foot race it's pretty common for support teams to have APRS to help coordinate and to use a non-standard frequency. So tracking 1000s of devices second by second, sure that's not going to work well.