Naval Communication Station Harold E. Holt is a joint Australian and United States naval communication station located on the north-west coast of Australia, 6 kilometres (4 mi) north of the town of Exmouth, Western Australia. The station is operated and maintained by the Australian Department of Defence on behalf of Australia and the United States and provides very low frequency (VLF) radio transmission to United States Navy, Royal Australian Navy and allied ships and submarines in the western Pacific Ocean and eastern Indian Ocean. The frequency is 19.8 kHz. With a transmission power of 1 megawatt, it is claimed to be the most powerful transmission station in the Southern Hemisphere.
Naval Communication Station Harold E. Holt
Satellite Image
VLF transmitter masts as seen from nearby Bundegi Beach
Station buildings in 1979.
Space Surveillance Telescope
Videos
The Space Surveillance Telescope (SST) is a Southern Hemisphere-based U.S. Space Force telescope used for detecting, tracking, and cataloguing satellites, near-Earth objects, and space debris.
A computer-generated image representing space debris as could be seen from high Earth orbit. The two main debris fields are the ring of objects in geosynchronous Earth orbit (GEO) and the cloud of objects in low Earth orbit (LEO).
Space Surveillance Telescope