Arecibo Graveyard #3: Islote heater

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?