Radar Observer · Performance — Resolution
The ability of a radar to distinguish two targets on the same bearing but at slightly different ranges depends mainly on the:
- ABeam width
- BPulse length✓ Correct
- CAntenna rotation rate
- DDisplay brightness
Explanation
Range resolution improves with a shorter pulse length: two targets on the same bearing must be separated by more than half the pulse length to appear as distinct echoes.
Authority: Radar Theory (USCG topic)
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