Radar display
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![Chain Home is the canonical A-scope system. This image shows several target](/Images/godic/202502/06/Chain_Home_screen_shot_-NEDAD.2013.047.058A1953.jpg")
![The L-scope was basically two A-scopes placed side-by-side and rotated vertically. By comparing the signal strength from two antennas, the rough direction of the blip could be determined. In this case there are two blips, a large one roughly centred, and a smaller one far to the right.](/Images/godic/202502/06/L-scope_radar_display1953.jpg")
![E-scope on the left and B-scope on the right](/Images/godic/202502/06/Scopes_S751953.png")
A radar display is an electronic device to present radar data to the operator. The radar system transmits pulses or continuous waves of electromagnetic radiation, a small portion of which backscatter off targets (intended or otherwise) and return to the radar system. The receiver converts all received electromagnetic radiation into a continuous electronic analog signal of varying (or oscillating) voltage that can be converted then to a screen display.