Blip scan ratio
The ratio of the number of paints from a target to the maximum possible number of paints for a given number of revolutions of the radar aerial.
Note: The maximum number of paints is usually equivalent to the number of revolutions of the aerial. This is generally taken as 10.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM