Recommendation ITU-R S.2157-0
Policy on Intellectual Property Right (IPR)
Annex 1 Procedure for use by the Bureau in checking compliance of non-GSO FSS
systems with No. 22.5L of the Radio Regulations in the frequency bands
37.5-39.5 GHz (space-to Earth), 39.5‑42.5 GHz (space-to-Earth),
47.2-50.2 GHz (Earth-to-space) and 50.4-51.4 GHz (Earth-to-space)
Attachment 1 to Annex 1 Steps to be applied in the space-to-Earth direction in
the frequency bands 37.5‑39.5 GHz and 39.5-42.5 GHz to determine
compliance with No. 22.5L of the Radio Regulations
Step 4A: Check on unavailability increase
Step 4B: Check on the time-weighted average spectral efficiency decrease
Attachment 2 to Annex 1 Algorithm steps to be applied in the Earth-to-space
direction in the frequency bands 47.2-50.2 GHz and 50.4-51.4 GHz to determine
compliance with No. 22.5L of the Radio Regulations
Step 4A: Check on unavailability increase
Step 4B: Check on the time-weighted average spectral efficiency decrease
Annex 2 Calculation of precipitation fade statistics