Hello Dave, ( AA6YQ ) I see your point with the use on HF
Thanks for your thoughtful reply. 73 Rein W6SZ -----Original Message----- >From: Dave AA6YQ <aa...@ambersoft.com> >Sent: Mar 6, 2010 7:03 AM >To: digitalradio@yahoogroups.com >Subject: RE: [digitalradio] Re: ARRL/FCC Announcement about ROS > >>>>AA6YQ comments below > > > >From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On >Behalf Of rein...@ix.netcom.com >Sent: Saturday, March 06, 2010 5:50 AM >To: digitalradio@yahoogroups.com >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 >
