Behold, Warpcore signalled from keyed 4-1000A filament:

What does Haarp sound like ? I heard a signal yesterday evening, but it
sounded like teletype.

Slow keyed carrier and some 50 baud RTTY.

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca