5.379D in the Radio Frequency Table Allocation of Ireland.

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Content Type: ITU FOOTNOTE
Title: 5.379D
Description: For sharing of the frequency band 1 668.4-1 675 MHz between the mobile-satellite
service and the fixed and mobile services, Resolution 744 (Rev.WRC-23) shall apply. (WRC-23)
Source: https://search.itu.int/history/HistoryDigitalCollectionDocLibrary/1.43.48.en.101.pdf