2.
When it is desired that short-range targets be clearly seen on a pulsed-radar set, it is important that the receiver and display system have

3.
The antenna separations (in meters) required for optimum operation of a space diversity system can be calculated from:
where R = effective earth radius (m) and L = path length (m)

4.
The aquadag coating on the inside of PPI tube is used

6.
If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the

7.
Oscillators of a klystron tube are maintained

8.
A PPI cathode-ray tube as used on a radar set

9.
It is possible to increase the maximum range of a radar equipment by