Subject to the general provisions regarding the classification of parts (see the General Explanatory Note to Section XVI), this heading covers parts of the apparatus of the four preceding headings. The range of parts classified here includes :
(1) Aerials of all kinds and aerial reflectors, transmission and reception. (2) Rotor systems for radio-broadcast or television-broadcast receiving aerials consisting essentially of an electric motor mounted on the aerial mast to rotate it and a separate control box to aim and position the aerial. (3) Cases and cabinets specialised to receive the apparatus of headings 85.25 to 85.28. (4) Aerial filters and separators. (5) Frames (chassis). This heading excludes : (a) Aerial masts (e.g., heading 73.08). (b) High-tension generators (heading 85.04). (c) Accumulators for cellular phones also referred to as mobile phones (heading 85.07). (d) Parts equally suitable for use principally with the goods of heading 85.17 and of headings 85.25 to 85.28 (heading 85.17). (e) Earphones and headphones, whether or not combined with a microphone, for telephony or telegraphy as well as earphones and headphones which can be connected to radio or television receivers (heading 85.18). (f) Cathode-ray tubes and parts thereof (e.g., deflection coils) (heading 85.40). (g) Aerial amplifiers and radio-frequency oscillator units (heading 85.43). (h) Lenses and optical filters for television cameras (heading 90.02).
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