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
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-bands.
Note
