http://www.arwatch.com/info/t_part97.htm
It's all spelled out in PART97 in 95.305 and 95.307. On 6 meters, you can go up to 19.2 kb. On 10 meters, you can go up to 1200 baud. Below that, 300 baud is the limit. Note that several HF digital modes try to evade the 300 baud limit on the low bands by transmitting several signals ( under 300 baud each ) at the same time from a single transmitter to get a higher effective baud rate. The legality of this practice, which clearly violates the spirit if not the letter of PAT97 has yet to be established. 73 DE Chales Brabham, N5PVL Prefer to use radio for your amateur radio communications? - Stop by at HamRadioNet.Org ! http://www.hamradionet.org -- Original Message ----- From: Bill V WA7NWP To: digitalradio@yahoogroups.com Sent: Monday, October 12, 2009 6:25 PM Subject: Re: [digitalradio] Re: QRV RFSM-8000 tonight So what would be the lowest band we could use it on? 10 meters? 6 meters? Higher? Bill, WA7NWP On Mon, Oct 12, 2009 at 4:19 PM, obrienaj <aobri...@stny.rr.com> wrote: > > > > Thanks Patrick, I guess we will have to lobby for some changes. > Andy > > --- In digitalradio@yahoogroups.com, "Patrick Lindecker" <f6...@...> wrote: > > > > Hello Andy, > > > > If RFSM-8000 derives from MIL-STD-188-110A (implemented in Multipsk), it is > > not legal in USA because the speed modulation is equal to 2400 bauds with a > > limit of 300 bauds in USA (you can't TX in 110A in USA). It is really a > > shame. > > Note: even if the (useful) bit speed is equal to 75 bps, the modulation > > remains at 2400 bauds.
