5.82D in the Radio Frequency Table Allocation of Ireland.

Content Type
ITU FOOTNOTE
Title
5.82D
Description
When establishing coast stations in the NAVDAT system on the frequencies 500 kHz
and 4 226 kHz, the conditions for the use of the frequencies 500 kHz and 4 226 kHz are prescribed in Articles 31 and 52. Administrations are strongly recommended to coordinate the NAVDAT systems operating characteristics in accordance with the procedures of the International Maritime Organization (IMO) (see Resolution 364 (WRC-23)). (WRC-23)