bg...@comcast.net wrote: > I'm thinking another reason for the restrictions - SS is also a very > good means of encryption. > The previous rules on SS required use of a particular type of SS and > the key number was specified in the rule.. > Probably in a pre 1999 ARRL rule book , if anyone really needed to > look. There might exist a method of finding old versions of the CFR > online, but I have not looked.
This is absolutely not the case. I know from first hand experience that all you have to do is be prepared to present any coding sequence upon demand. And that coding (viterbi, pseudo-random, whatever) does not constitute encryption to the FCC's. This was resolved back in the early packet days and the WA4DSY 56k modems. This is true of many of the other modes/modems. And was also ruled upon by the FCC due to challenges by the anti-Pactor crowd. Have fun, Alan km4ba
