RADAR THEORY

#23. The maximum range obtainable from an ATC Long Range Surveilance Radar is approximately:

• A300 NM.
• B200 NM.
• C100 NM.
• D400 NM.

#22. Which combination of characteristics gives best screen picture in a primary search radar?

• ALong pulse length and wide beam.
• BShort pulse length and narrow beam.
• CLong pulse length and narrow beam.
• DShort pulse length and wide beam.

#2. The minimum range of a primary radar, using the pulse technique, is determined by the (i) ______; the maximum unambiguous range by the (ii) _______

• A(i) pulse length (ii) pulse recurrence frequency
• B(i) transmission frequency (ii) transmitter power output
• C(i) pulse length (ii) length of the timebase
• D(i) transmission frequency (ii) pulse recurrence frequency