The Type 281BQ was a Type 281BP fitted with power rotation, at 2 or 4 rpm, and equipped with a plan position indicator.
12.
The result was a 360-degree image of the sky around the aircraft that was presented on a plan position indicator ( PPI ).
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The transmission forms a line of Morse characters on a plan position indicator radar display which radiates from the centre of the display to its edge.
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In search mode the SCR-584 rotated its antenna through 360 degrees and any returns were plotted on a plan position indicator ( PPI ).
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Still another was the plan position indicator ( PPI ), proving the well-known circular presentation on the screen of a cathode-ray tube.
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Later, the plan position indicator ( PPI ) was added and the system was designated SCR-516, a low-altitude early-warning radar.
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As a result of her increased efficiency using the plan position indicator, the Navy had production of the plan position indicator expedited for distribution to the submarine fleet.
18.
As a result of her increased efficiency using the plan position indicator, the Navy had production of the plan position indicator expedited for distribution to the submarine fleet.
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The development of a pronounced BWER can lead to tropical cyclone-like radar signatures over land when located with a low angle plan position indicator ( PPI ).
20.
The plan position indicator, dating from the early days of radar and still the most common type of display, provides a map of the targets surrounding the radar location.
