Information for ruling 600011936
This section is Advance Tariff Ruling
- Start date
- 02 Dec 2024
- Expiry date
- 01 Dec 2027
- Commodity code
- 9015200000 (opens in new tab)
- Description
- A theodolite which is a precision optical instrument used for measuring angles in both the horizontal and vertical planes. Digital theodolites consist of a telescope that is mounted on a base, as well as an electronic readout screen that is used to display horizontal and vertical angles. The instrument combines the functions of an optical plummet and a spirit level by incorporating a set of graduated circles that can be used to determine horizontal and vertical angles, which are needed for surveying. During antenna installations, theodolites are essential for precise angle measurements, ensuring proper alignment and calibration and they are critical for ensuring optimal signal reception and transmission. Parabolic antennas are highly sensitive to precise alignment as a smooth, well-formed parabolic surface is necessary to direct the radio waves precisely toward the focus point or to receive signals from a focused source. The design of the parabolic shape allows radio waves to be reflected to a single focal point where a feed antenna is located. If the surface is uneven or distorted, the reflected waves will not converge properly at the focus, leading to signal loss, reduced antenna efficiency, and poor communication performance. After the initial antenna installation, theodolites are used to inspect the symmetry of the reflector by measuring the angles and ensuring the surface curvature is formed exactly as required. If any part of the reflector is warped or misaligned, fine adjustments can be made to the panels to achieve the desired surface accuracy and ensure optimal signal performance. The theodolite is shipped within a purpose built protective hard case with foam insert.
- Keywords
-
- DIGITAL
- SCIENTIFIC AND MEASURING EQUIPMENT
- CHECKING INSTRUMENTS
- PRECISION EQUIPMENT
- THEODOLITES
- ELECTRONIC MEASURING INSTRUMENTS
- SURVEYING EQUIPMENT
- Justification
- Classification has been determined in accordance with the following: For the purposes of determining the commodity codes within which goods most appropriately fall, reg 3 (1) of The Customs Tariff (Establishment) (EU Exit) Regulations 2020 sets out that the rules of interpretation contained in the following have effect – a. Part Two (Goods Classification Table Rules of Interpretation) of the Tariff of the United Kingdom (Reg 3(1)(a)); and b. Notes to a section or chapter of the Goods Classification Table (Reg 3(1)(b)). General interpretative rules (GIR)s: GIR 1 - has been used to classify this product by the terms of heading 9015 - Surveying (including photogrammetrical surveying), hydrographic, oceanographic, hydrological, meteorological or geophysical instruments and appliances, excluding compasses; rangefinders GIR 5 (b) - has been used to identify the type of packaging. A purpose built protective hard case with foam insert GIR 6 has been used to classify this product to subheading level 901520 - Theodolites and tachymeters (tacheometers) Also classified in accordance with: Harmonized System Explanatory Notes (HSENs) to Heading 9015