Sepehr (, meaning "sky") is an over-the-horizon radar (OTH) developed by Iran. Little is known of the project, except it has a reported range of 3,000 km. It was originally scheduled to enter operational status in 2013. In August 2013, Iran announced completion of a first phase of the project with a range of only 300–700 km. Iran Builds Space Radars, Uses New Passive Phased Array Radars. In 2014 Iran announced it wished to establish a space-based radar system. Iran Army Meluncurkan Strategic Space & Satellite Detecting Sepehr Radars. It was expected to be finalised by the end of 2014. Iran Daily.com. It is currently operational.
See also Russian Woodpecker Cobra Mist The Buzzer JORN Islamic Republic of Iran Air Defense Force Radar Systems
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