The echo is indicated by a sudden rise within the output of the detector, which produces a voltage proportional to the sum of the rf indicators being received and the rf noise inherent within the receiver itself. The time between the transmission and the receipt of the echo discloses the range to the target. The course or bearing of the target is disclosed by the path the antenna is pointing when an echo is received. In the first, the transmitter and receiver are widely separated and targets are noticed between them. The different arrangement employs oblique-return scanning, in which the acquired signals journey again to the positioning from which they had been radiated .
This led the Luftwaffe to fund the development of a 50 cm gun-laying system, the Würzburg...Read More