Gary Chatters WA9ZZZ
On 11/4/18 9:52 AM, Graham wrote:
There is no mention of actual transmission 'mode' though , FSK by hard keying , is base band FM[...]
As I understand the regulations, RTTY and Data on 10m are permitted only from 28.000 MHz to 28.300 MHz.
To determine what transmission modes are referred to by "RTTY" and "Data" you have to look in section 97.3 "Definitions".
Then to learn what each of those emission designators refer to, look them up in section 2.201 "Emission, modulation, and transmission characteristics." Note: This is Part 2, not Part 97.
Many years ago (before maybe 1970) RTTY on 10m was permitted in the 29.0-29.7 MHz range using frequency modulation techniques (F1 or F2).