OK does ROS encrypt or not? I though if something was encrypted one would need some means provided to a limited group, to allow and enable them to decode the message. Do we have that in ROS?
We need the complete package receiving part included. Does the transmitting station provide us with such a key every time? Does Jose ROS perhaps e-mails it to us?? And when the day comes he will not do that any longer? At the beginning of a QSO? At the beginning of a transmission? Ever? Never? I know it would be so much easier if Jose told us these points! And many have said this before Just asking questions that are relevant heaving seen comments here on this board over the last couple of months, concerning SS 73 Rein W6SZ -----Original Message----- >From: W2XJ <[email protected]> >Sent: Jul 13, 2010 4:42 PM >To: [email protected] >Subject: Re: [digitalradio] SS and the FCC definitions > >Spread Spectrum does not unto itself comprise a means of encrypting >information although encryption often accompanies it. > > >On 7/13/10 3:50 PM, "Lester Veenstra" <[email protected]> wrote: > >> >> >> >> >> >> The rules also make it clear that SS (or any other coding system) cannot be >> used to hid the meaning. They used to demand disclosure of the encoding >> system for compliance, but now, seem happy if the decode software (but not >> the >> source code) is freely available to those who want to listen. >> >> >> >> >> Lester B Veenstra MØYCM K1YCM >> [email protected] <mailto:[email protected]> >> [email protected] <mailto:[email protected]> >> [email protected] <mailto:[email protected]> >> >> >> US Postal Address: >> PSC 45 Box 781 >> APO AE 09468 USA >> >> UK Postal Address: >> Dawn Cottage >> Norwood, Harrogate >> HG3 1SD, UK >> >> Telephones: >> Office: +44-(0)1423-846-385 >> Home: +44-(0)1943-880-963 >> Guam Cell: +1-671-788-5654 >> UK Cell: +44-(0)7716-298-224 >> US Cell: +1-240-425-7335 >> Jamaica: +1-876-352-7504 >> >> This e-mail and any documents attached hereto contain confidential or >> privileged information. The information is intended to be for use only by >> the individual or entity to whom they are addressed. If you are not the >> intended recipient or the person responsible for delivering the e-mail to >> the intended recipient, be aware that any disclosure, copying, distribution >> or use of the contents of this e-mail or any documents attached hereto is >> prohibited. >> >> >> From: [email protected] [mailto:[email protected]] On >> Behalf Of [email protected] >> Sent: Tuesday, July 13, 2010 8:45 PM >> To: [email protected] >> Subject: Re: [digitalradio] SS and the FCC definitions >> >> >> >> >> sorry, the fine print is giving me fits. It's obviously 97.3 (c)(9). >> >> 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. >> >> ----- Original Message ----- >> From: "Lester Veenstra" <[email protected]> >> To: [email protected] >> Sent: Tuesday, July 13, 2010 12:26:57 PM GMT -06:00 US/Canada Central >> Subject: [digitalradio] SS and the FCC definitions >> >> >> >> >> >> § 97.3 Definitions. >> (b) The definitions of technical symbols >> used in this part are: >> (9) UHF (ultra-high frequency). The >> frequency range 3003000 MHz. >> >> ---------------------------------------------- >> § 97.3 Definitions. >> (c) The following terms are used in >> this part to indicate emission types. >> Refer to § 2.201 of the FCC Rules, Emission, >> modulation and transmission characteristics, >> for information on emission >> type designators. >> (8) SS. Spread spectrum emissions >> using bandwidth-expansion modulation >> emissions having designators with A, >> C, D, F, G, H, J or R as the first symbol; >> X as the second symbol; X as the >> third symbol. >> >> >> § 2.201 Emission, modulation, and >> transmission characteristics. >> The following system of designating >> emission, modulation, and transmission >> characteristics shall be employed. >> (a) Emissions are designated according >> to their classification and their >> necessary bandwidth. >> (b) A minimum of three symbols are >> used to describe the basic characteristics >> of radio waves. Emissions are classified >> and symbolized according to the >> following characteristics: >> (1) First symboltype of modulation >> of the main character; >> (2) Second symbolnature of signal( >> s) modulating the main carrier; >> (3) Third symboltype of information >> to be transmitted. >> >> >> (c) First Symboltypes of modulation >> of the main carrier: >> (2) Emission in which the main >> carrier is amplitude-modulated >> (including cases where sub-carriers >> are angle-modulated):. >> Double-sideband ....................... A >> Single-sideband, full carrier ..... H >> Single-sideband, reduced or >> variable level carrier ................ R >> Single-sideband, suppressed >> carrier ...................................... J >> Vestigial sideband .................... C >> (3) Emission in which the main >> carrier is angle-modulated:. >> Frequency modulation ............. F >> Phase modulation ..................... G >> >> NOTE: Whenever frequency modulation F¹¹ >> is indicated, Phase modulation G¹¹ is also >> acceptable. >> (4) Emission in which the main >> carrier is amplitude and anglemodulated >> either simultaneously >> or in a pre-established sequence .. D >> >> >> >> >> Lester B Veenstra MØYCM K1YCM >> [email protected] >> [email protected] >> [email protected] >> >> >> US Postal Address: >> PSC 45 Box 781 >> APO AE 09468 USA >> >> UK Postal Address: >> Dawn Cottage >> Norwood, Harrogate >> HG3 1SD, UK >> >> Telephones: >> Office: +44-(0)1423-846-385 >> Home: +44-(0)1943-880-963 >> Guam Cell: +1-671-788-5654 >> UK Cell: +44-(0)7716-298-224 >> US Cell: +1-240-425-7335 >> Jamaica: +1-876-352-7504 >> >> This e-mail and any documents attached hereto contain confidential or >> privileged information. The information is intended to be for use only by >> the individual or entity to whom they are addressed. If you are not the >> intended recipient or the person responsible for delivering the e-mail to >> the intended recipient, be aware that any disclosure, copying, distribution >> or use of the contents of this e-mail or any documents attached hereto is >> prohibited. >> >> >> From: [email protected] [mailto:[email protected]] On >> Behalf Of [email protected] >> Sent: Tuesday, July 13, 2010 1:52 PM >> To: [email protected] >> Subject: Re: [digitalradio] Re: Moving ROS forward in the USA? >> >> >> >> >> sorry, my typo. It's in 97.3. (b)(9) >> >> >> >> >> >> >> >> >
