IALA R-121 : 2ED 2015

Proposes that Members and other appropriate Authorities providing, or intending to provide, DGNSS services in the frequency band 283.5 – 325 kHz, should adopt the following principles:- Provide the service in accordance with ITU-R Recommendation M.823-3;- Provide integrity information for GNSS;- Provide the service with a level of redundancy to achieve performance requirements IMO A.1046 (27);- Provide means of verifying the performance of the service;-Provide mariners with information about the service, for example- Adopt the design and implementation principles set out in the relevant IALA Guideline(s).