
THE RADAR SYSTEM - OPERATIONAL PRINCIPLES
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deflected from the path which would take them directly
to the anode (an application of the motor principle).
Many electrons will eventually reach the anode only
after a complex oscillatory journey in which their paths
may alternately be directed toward and away from the
anode and their speed increased and decreased. The
movement of each electron will be further affected by
the electromagnetic influence of the millions of other
electrons moving in its vicinity. The effect is extremely
complex but it can be summarized by saying that if the
change of electron velocity is regular and repetitive then ...