There's the generally accepted definition of SS, quoted below and referring to bandwidths greatly exceeding what's necessary, and then there's the way the FCC regs are written, which do not refer to that definition.
I think just about everyone, or maybe absolutely everyone who cares about the FCC regs, thinks in this case they are inappropriate, but the fact is, they do not allow for narrow-band SS, even though it would cause no real harm. The regs should be changed, but until they are, we in the US can not use SS below 220, or we can move to another country, or we can violate the regs, and/or we can campaign to change them. But saying you don't agree with a law so you don't have to follow it is not the right way. Jim - K6JM ----- Original Message ----- From: rein...@ix.netcom.com To: digitalradio@yahoogroups.com Sent: Tuesday, July 13, 2010 11:23 AM Subject: Re: [digitalradio] Re: Random data vs Spread Spectrum Hi Alan, Why did you wait so long with contributing here? Please explain. ++ In Feb of this year I quoted from the ARRL's Spread Spectrum Source book page 5-2 ++ " Spread Spectrum Fundamentals " SS systems employ radio frequency bandwidths that greatly exceed the bandwidth necessary to convey the intelligence. Bandwidths for SS systems generally run from 10 to 100 times the information rate. etc etc. I got shouted out of the Group by addressing the use of ROS in the US by the experts on SS. 73 Rein W6SZ
