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Stealth Aircraft not Immune
Edinburg is also linked to a third Jindalee transmitter and receiver at Alice Springs, which has operated as a JORN test site since 1993. McElroy says the Jindalee radar is very difficult to jam because of the way the signal is propagated over the ionosphere. "It can also detect stealth bombers, which are not designed to defeat the characteristics of Jindalee's high frequency radar," he said.
Stealth aircraft, such as the US Nighthawk F117A, are designed with sharp leading edges and a flat belly to minimise reflections back towards conventional ground-based radars. However, Jindalee radar bounces down from the ionosphere onto upper surfaces that include radar-reflecting protrusions for a cockpit, engine housings and other equipment.
Group Captain Hockings says stealth aircraft are coated with special radar absorbing material to avoid detection by conventional microwave radar. But the Jindalee radar uses high frequency radio waves, which have a much longer frequency than microwave radar. "Unless designed to be stealthy to both microwave and HF radars, (stealth) aircraft would not evade detection by JORN," he said.
Defence contractors are due to hand JORN over to the RAAF at the end of next year.
Mind you if it is anything like the Colins class sub then I do not think the PRC has anything to panic about
Originally posted by gold32
It really isnt that suprising that our goverment and armed forces would employ such strategic defence inititives. If a major war did occur we would be a prime target being the largest main land mass in the southern hemisphere. Our location makes an ideal military staging point to the rest of the world, plus we have quite a number of natural resources.(uranium etc. not sure about how much oil we have though... )
Originally posted by mad scientist
29 Febuary 2000
As far as I know only The US, Russia and China deploy these types of radar.
Originally posted by Daedalus3
Soembody mentioned china has em' too??Any info on that?