3 Performance
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.164(78) - Revised Performance Standards for Radar Reflectors - (adopted on 17 May 2004) - Annex - Recommendation on Performance Standards for Radar Reflectors - 3 Performance

3 Performance

  3.1 The radar reflector should have a “Stated Performance Level” measured in square metres radar cross section (m2 RCS) of at least 7.5 m2 in X-band and 0.5 m2 in S-band mounted at a minimum height of 4 m above water level.

  3.2 Required minimum level for reflector performance - the Stated Performance Level should:

  • .1 be maintained over a total of at least 280° azimuth;

  • .2 not remain below this level over any single angle of more than 10° - a null; and

  • .3 not have distances between nulls of less than 20°.

  3.3 For power driven vessels and sailing vessels designed to operate with little heel (catamaran/trimaran), this performance should be maintained through angles of (athwartships) heel 10° either side of vertical. For other sailing vessels, the reflector should maintain this performance over 20° either side of vertical.

  3.4 Active reflectors should conform to Recommendation ITU-R M.1176.

Parent topic: Annex - Recommendation on Performance Standards for Radar Reflectors
Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.