# The Merchant Shipping (Navigational Equipment) Regulations 1993, Regulation 33: Siting of direction-finder installation


(1) The direction-finder shall be so sited that efficient determination of radio bearings by means of the direction-finder will not be affected by extraneous noises.
(2) The direction-finder antenna system shall be mounted in such a manner that the efficient determination of radio bearings by means of the direction-finder will be affected as little as possible by the proximity of antennas, derricks, wire halyards and other large metal objects.

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Source: https://www.legislation.gov.uk/uksi/1993/69/regulation/33 (the official version)
Page: https://openlegislation.uk/merchant-shipping-navigational-equipment-regulations-1993/regulation-33
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.