[Lowfer] Looking for 73 kHz band modes to try...

[JD]

>>> It's ROS mode that's involved in the spread spectrum controversy. OPERA 
>>> mode is simply on off keying.

I wondered where the controversy came from.  As I mentioned myself, OPERA is 
clearly not SS.  The real problem with its legality for US hams is the 
digital code employed, and the fact that it is not one of those specified in 
§97.309(a) for data transmissions below 50 MHz.

73
John