Is it accurate to state they have made illegal (via &#x27;rules&#x27;) to use open source (user controlled) EM comm above 100um (below 3000GHz[1]) (except a few windows)? Or is it 9kHz to 275GHz? I bet when line of sight NIR comms (there&#x27;s a nice window around 1550nm) get popular, they will (to stay relevant) want to &#x27;regulate&#x27;[2] that too. Prior restraint is the problem here, anyone can mess with the spectrum with basic electronic skills, mandating &#x27;approved&#x27; software seems less than pointless.<p>[1] <a href="http:&#x2F;&#x2F;www.spectrumwiki.com&#x2F;wp&#x2F;allocations101.pdf" rel="nofollow">http:&#x2F;&#x2F;www.spectrumwiki.com&#x2F;wp&#x2F;allocations101.pdf</a><p>[2] <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=gbYXBJOFgeI" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=gbYXBJOFgeI</a>