聽d人話機場有冇提供 CAT II 或 CAT III ....究竟係咩黎 ??

These are two of the three categories of ILS (Instrument Landing System).

- Category I - A precision instrument approach and landing with a decision height not lower than 60 m (200 ft) above touchdown zone elevation and with either a visibility not less than 800 m or a runway visual range not less than 550 m. An aircraft equipped with an Enhanced Flight Vision System may, under certain circumstances, continue an approach to CAT II minimums. [14 CFR Part 91.175 amendment 281]

- Category II - Category II operation: A precision instrument approach and landing with a decision height lower than 60 m (200 ft) above touchdown zone elevation but not lower than 30 m (100 ft), and a runway visual range not less than 350 m.

- Category III is further subdivided

Category III A - A precision instrument approach and landing with:
a) a decision height lower than 30 m (100 ft) above touchdown zone elevation, or no
decision height; and
b) a runway visual range not less than 200 m.

Category III B - A precision instrument approach and landing with:
a) a decision height lower than 15 m (50 ft) above touchdown zone elevation, or no
decision height; and
b) a runway visual range less than 200 m but not less than 50 m.

Category III C - A precision instrument approach and landing with no decision height and no runway visual range limitations. A Category III C system is capable of using an aircraft's autopilot to land the aircraft and can also provide guidance along the runway surface.

(Reference ICAO Annex 10 AERONAUTICAL TELECOMMUNICATIONS Volume 1 RADIO NAVIGATION AIDS 2.1.1)

auto landing