Range and bearing discrimination should be measured in calm conditions, on a range scale of 1.5 NM or less and at between 50% and 100% of the range scale selected:
The radar system should be capable of displaying two point targets on the same bearing, separated by 40 m in range, as two distinct objects.
The radar system should be capable of displaying two point targets at the same range, separated by 2.5° in bearing, as two distinct objects.