Eric
Sadly not many broadcast any more, I suppose they've only been stood-down & not entirely decommissioned. I've tuned into a fair few jamming signals on my little short-wave, never heard a NS live though.
Eric
I think I toyed with the idea of hacking together something similar. Though what use is a bare-bones broadcast when it requires the receiver to have an internet connection, modern browser & untraceable connection, ect ect -- Its a great toy but completely useless in real espionage I'd reckon.