A pal at Uni (quite a party animal) often used to say - if anything's worth doing, it's worth doing to extremes. I've often taken that as sound advice. Indeed yes, and I think I received a little sig
I found what I was looking for in Roger Lapthorn's notes on earth mode at https://sites.google.com/site/sub9khz/earthmode where he mentions that licencing is not required. However he is talking about