A published technical specification proving that it is not SS and meets all other requirements in the FCC regulations will allow use below 222 MHz in the U.S. The FCC requires the published specification to allow use of any RTTY or data mode on any frequency. Non-use of SS is just an additional requirement for frequencies below 222 MHz. They also have baud rate limits that vary by frequency. 300 baud is the maximum on most HF bands.
It really is necessary to read Title 47 part 97 of the U.S. Code of Federal Regulations to develop this kind of software for use in the U.S. (see http://wireless.fcc.gov/index.htm?job=rules_and_regulations). 73, John KD6OZH ----- Original Message ----- From: jose alberto nieto ros To: digitalradio@yahoogroups.com Sent: Wednesday, February 24, 2010 23:52 UTC Subject: Re: [digitalradio] Is ROS Documentation Published? And ROS is legal because is not a SS modulation. ------------------------------------------------------------------------------ De: John B. Stephensen <kd6...@comcast.net> Para: digitalradio@yahoogroups.com Enviado: jue,25 febrero, 2010 00:47 Asunto: Re: [digitalradio] Is ROS Documentation Published? CHIP64 is legal above 222 MHz -- they're assuming that the user will notice that it's spread-spectrum and act accordingly. 73, John KD6OZH ----- Original Message ----- From: jose alberto nieto ros To: digitalradio@ yahoogroups. com Sent: Wednesday, February 24, 2010 23:30 UTC Subject: Re: [digitalradio] Is ROS Documentation Published? Hi Bonnie, i saw in the first place of that list: Chip 64 explaining clearly that Chip 64 is Spread Spectrum. Then, what have to say ARRL about it ? They are publishing a SS in his own officcial website. Somebody can explain me what happen here? ---------------------------------------------------------------------------- De: expeditionradio <expeditionradio@ yahoo.com> Para: digitalradio@ yahoogroups. com Enviado: mié,24 febrero, 2010 23:20 Asunto: [digitalradio] Is ROS Documentation Published? > Jose wrote: > if anywant know about ROS protocol is Jose Alberto Nieto Ros Hi Jose, Do you plan to publish documentation of a non-Spread Spectrum version of ROS mode? Examples of public documentation: http://www.arrl. org/FandES/ field/regulation s/techchar/ Best Wishes, Bonnie Crystal KQ6XA FCC Rules for amateur radio service in USA " §97.309(a)(4) Technical Descriptions (4) An amateur station transmitting a RTTY or data emission using a digital code specified in this paragraph may use any technique whose technical characteristics have been documented publicly, such as CLOVER, G-TOR, or PacTOR, for the purpose of facilitating communications. "
