Jointly operated by Spanish Navy and US Navy 1984-1990. Transferred to Spanish Navy in 1990.
History (in Spanish)
photo thanks to Pedro Vidal Terrasa
Video showing base, control, transmitters, generators, tower, etc. 1997 images.
500 kw LF 100-200 kc CW/FSK - spec
sheet
dual 250 kw transmitters
diesel engines for p/s
AN/FRT-10 transmitter photos thanks to NF7M
Photo thanks to Manuel Espinosa
"The AN/FRT-10 was unique, a 500 kW LF giant tuning 100 - 200 kHz. It was in two amplifier bays, which we drove alternately with an external TMC synthesized exciter stack, running the single-channel KSUB broadcast at about 50 kW. It fed a 1200-foot tower, through 8-inch rigid coax and a big variometer/capacitor network in the helix house. The amplifier bays each consisted of IPA and driver stages for the finals: four air-cooled 6697 triodes in grounded-grid push-pull configuration!"
Retired Transmitter Called to Active
Duty
An old AN/FRT-10 transmitter,
in storage for 12 years, will be
modified and installed by Westinghouse
in the Navy's Guardamar, Spain, radio
station. The 500-kw transmitter will be
converted from a Class C amplifier
to linear operation.
The resulting low-frequency system,
operated as a single sideband transmitter,
will be the most powerful of its
type in existence, Westinghouse disclosed.
The station will be ready for
operation early in 1965 for fleet
communication