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| View Original: | SLC radar on 150cm searchlight.jpg (622x640) | |||
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| Keywords: SLC radar on 150cm searchlight.jpg en This image shows a Searchlight Control radar unknown mark attached to a standard 150 cm searchlight The SLC system was nicknamed Elsie The transmitter antenna is at the very top the other four antennas are receivers two for the horizontal axis and two vertical By comparing the returns from a pair of antennas the operator could tell which direction to turn the radar to make the two signals equal when this was accomplished both horizontally and vertically the target would be close to the center of the searchlight beam and could be tracked optically from that point Later examples of the SLC system included a fifth antenna which received IFF signals This was normally located beside the transmitter antenna at the top This example is shown on New Guinea operated by the 73rd Anti Aircraft Searchlight Battery and used for airfield defence 1943 https //www awm gov au/collection/P05147 011 Donald Stewart Roberts other versions Custom license marker 2016 12 04 PD-Australia Searchlights Radar antennas SLC radar World War II anti-aircraft searchlights | ||||
