English: The control console of the US Navy SG radar a surface-searchradar used on distroyers and large ships during World War 2. Developed in 1941, it was the Navy's first S-band microwave radar. The large round CRT displays visible are, (left to right) the "A scope" showing the signal vs time, the gyrocompass readout showing the ship's orientation, and the PPI (Plan Position Indicator) radar display. The SG was the first Navy radar with a PPI display
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Uploaded a work by {{Unknown|author}} from Retrieved 31 August 2024 from [https://www.worldradiohistory.com/Archive-Radio-News/40s/Radio-News-1945-10-R.pdf Radar - The silent weapon of World War 2 in ''Radio News'' magazine, Chicago, Ziff-Davis Publishing Co., Vol.34, No.4, October 1945, p.28] with UploadWizard