HF RADAR Jindalee Operational Radar Network 10kHz & 3kHz | Signal Phantom - YouTube
The Jindalee Operational Radar Network (JORN) project was started by the Australian Defence Science and Technology Organisation (DSTO) now called the Defence Science and Technology (DST) group in the early 1970s [UK spelling]. The system is reported to operate from 5 to 30 MHz and can be seen using FMCW modulation ‘common’ 3kHz & 10kHz sweeps and various Pulse Repetition Frequency and length. Power is a reported to be a combination of 20kW P.A.’s times 28 feed to the high/low band wire vertical log periodic arrays for a total of ~560kW. It can be frequency agile with a distinctive single center carrier burst as seen in the video.
JORN currently consists of 3 main OTHR transmitters and receivers in Queensland and Alice Springs covering 90 degrees each and Western Australia extends through 180 degrees jointly operated from the JORN Coordination Centre at RAAF Base Edinburgh, South Australia by No 1 Radar Surveillance Unit (1RSU). System also incorporates vertical incident sounding for propagation management and uses several transponders.
Western Australia receiver array is massive, by my count has nearly ~994 dual monopole elements arranged in two rows nearly 6kM in length as seen in satellite images attached in video.
Signal received here in Fort Collins, Colorado software defined radio by Northern Colorado Amateur / HAM radio operator Tyler Stampfli, KA0KA
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