1. FCC Dismisses “Encryption” PetitionThe FCC has dismissed a Petition for Rulemaking (RM-11699) from a Massachusetts ham, that sought to amend the Part 97 Amateur Service rules to permit the encryption of certain amateur communications during emergency operations or related training exercises. http://www.arrl.org/news/fcc-dismisses-encryption-petition
2. Technically encryption on amateur radio bands is illegal. However, in reality the FCC has been letting it happen for years and the ARRL has turned a blind eye to it. D-STAR uses a proprietary vocoder that takes an analog voice signal and converts it into a data bitstream. The algorithm isn’t publicly documented and you can’t decrypt it, unless you buy a proprietary chip. 来源http://www.amateurradio.com/encr ... ntention-thats-not/