Number stations

Speaking of number stations, I have a recording of a strong Spanish number station from December 17th, 2003, at 5:15UT, on 8100kHz (1:00, 705kb mp3). The noise at the end is a local broadband noise source called an elevator.

Some other shortwave / radio posts:
Adventures in Shortwave: more Radio Havana Cuba
Adventures in Shortwave: Swahili on the radio
Adventures in shortwave: last night's Radio Habana Cuba

VLF radio: part 1

VLF Radio part 2: sferics

The Sun as a microwave source

The Sun as a 2.4 GHz source, redux