5.516B in the Radio Frequency Table Allocation of Ireland.

Content Type
ITU FOOTNOTE
Title
5.516B
Description

The following bands are identified for use by high-density applications in the fixed-satellite service:

  17.3-17.7 GHz  (space-to-Earth) in Region 1
 18.3-19.3 GHz  (space-to-Earth) in Region 2
 19.7-20.2 GHz  (space-to-Earth) in all Regions
 39.5-40 GHz    (space-to-Earth) in Region 1
 40-40.5 GHz   (space-to-Earth) in all Regions
40.5-42 GHz (space-to-Earth) in Region 2
47.5-47.9 GHz (space-to-Earth) in Region 1
 48.2-48.54 GHz   (space-to-Earth) in Region 1
 49.44-50.2 GHz  (space-to-Earth) in Region 1 
 and  
 27.5-27.82 GHz  (Earth-to-space) in Region 1
 28.35-28.45 GHz (Earth-to-space) in Region 2 
28.45-28.94 GHz (Earth-to-space) in all Regions
28.94-29.1 GHz (Earth-to-space) in Region 2 and 3
29.25-29.46 GHz (Earth-to-space) in Region 2
29.46-30 GHz (Earth-to-space) in all Regions
48.2-50.2 GHz (Earth-to-space) in Region 2
   
   



This identification does not preclude the use of these frequency bands by other fixed-satellite service applications or by other services to which these frequency bands are allocated on a co-primary basis and does not establish priority in these Radio Regulations among users of the frequency bands. Administrations should take this into account when considering regulatory provisions in relation to these frequency bands. See Resolution 143 (Rev.WRC-19).     (WRC-19)

Source
https://search.itu.int/history/HistoryDigitalCollectionDocLibrary/1.43.48.en.101.pdf