>>>AA6YQ comments below
From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Saturday, March 06, 2010 5:50 AM To: [email protected] Subject: RE: [digitalradio] Re: ARRL/FCC Announcement about ROS Hi Dave, ( AA6YQ ) Thanks. I might just do that next Monday. I understand it to be, some help/emergency phone line? >>>It’s not an emergency phone line. I Lost the number, so if you have it, please send it to me. >>>call (877) 480-3201, choose option #2, and when a person answers ask for >>>“Dawn” (agent 3820). I am also very much interested in your definition of ss. I have not been able to find anything, Wikipedia really does not count in this case. >>>I don’t have a definition, Rein; I agree with you that the Wikipedia entry >>>is not authoritative. The fact that part 97 references spread spectrum >>>without defining it is one of the root causes of this controversy, leaving >>>us to make “individual decisions” in the absence of decision criteria. >>>Transparency (ability for anyone to copy without a private key) and >>>spreading factor are clearly important factors, but to what does the >>>spreading factor apply? Information content? Bandwidth of the signal being >>>spread? Mike N4QLB claims in a post on the ROS reflector that “it’s not >>>spread spectrum if the resulting bandwidth is 3 khz”. Is that true? If so, >>>why 3 khz, as opposed to, say, 3.1 khz? >>>While the assessment of a digital mode’s legality in the US is left to the >>>operator, the decision to impose a penalty in an operator for using an >>>illegal mode lies with the FCC. Given the FCC’s declaration that “ROS is >>>viewed as spread spectrum” and the ARRL’s similar public announcement, I >>>would be hard-pressed to explain why my use of ROS should not result in a >>>serious fine or loss of license. Thus I am not using ROS on HF bands. >>>Said another way, US amateurs can decide to use ROS, but they’d best have a >>>killer technical argument for its legality at the ready. 73, Dave, AA6YQ
