Re: [digitalradio] No HF data/text bandwidth limit in USA Re: A closer look at ROS

2010-02-21 Thread Rik van Riel
On 02/21/2010 04:48 PM, expeditionradio wrote: > §97.305(c) is a chart of amateur radio bands > and sub-bands. Each sub-band has a "note", > and the notes are listed in part §97.307. > > The Note # (2) only applies a soft bandwidth > limit to non-phone emissions within the > "Phone,image" sub-band

[digitalradio] No HF data/text bandwidth limit in USA Re: A closer look at ROS

2010-02-21 Thread expeditionradio
Dear "Rik van Riel", There is currently no finite bandwidth limit on HF data/text emission in USA ham bands, except for the sub-band and band edges. FCC data/text HF rules are still mainly based on content of the digital emission, not bandwidth. FCC rules allow hams to transmit a 149kHz band