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Yeah, I don't really get where this article is going. All digital signals are required to publish how to decode and D-Star that was called out was designed spec
by vvanders 8y ago
Yeah, I don't really get where this article is going. All digital signals are required to publish how to decode and D-Star that was called out was designed specifically by hams.
My guess is this is just a push back against pactor and the non ham usage that tends to happen. Either way ham isn't going to be breaking any data rates soon as the frequency used is to small for faster symbols(and they're also prohibited but current laws).
- knorker 8y agoThe voice codec for Dstar is proprietary and patented. Luckily it's about to expire and I've seen at least one reverse engineered implementation. Still, it completely goes against the spirit of a hobby and is an intentional legal and technical barrier to decoding transmissions, today.
- dbcurtis 8y agoYes. D-Star is the poster-child for the kind of coding scheme that should not be allowed in Amateur Radio. If I can't access the documentation required to do a compatible open implementation, then it is a no-go.
- adestefan 8y agoThere are some methods that are patent encumbered and the only source of ways to decode them are with tightly controlled modems/decoders. This is especially the case with the advanced PACTOR modems and some of the digital voice encoders. The FCC considered patented methods to be open even if there are no available methods to decode them.
- nickysielicki 8y ago> All digital signals are required to publish how to decode This is not true.