Space physics, Experiments, Inverse problems - Daily Reports (seiðr). Writings about various topics in plasma physics, radio science, space physics, rockets, radars, aurora, remote sensing, geophysics, radio astronomy, inverse problems, outdoors activities, electronics, and software defined radio. The web page of the radio science group at University of Tromsø.
Ever wondered what happened to the hardware of the Islote heating facility that was destroyed by Hurricane Georges in 1998? Some of it can be found at the Arecibo Graveyard for abandoned RF hardware. Here's what looks to be a fairly large stack of coaxial cable, which I'm told was used to feed the antennas of the Islote ionospheric heating facility.
Stack of coaxial cable. Not your run of the mill RG58. Good to 10 to 100 kW maybe?