1 Introduction
2 Radiocommunication services having allocations in the frequency range
231.5-252 GHz
3 EESS (passive) and applications within 231.5-252 GHz frequency range
3.1 Background
3.1.1 Ice cloud measurements
3.1.2 Measurement of gases in the atmosphere
3.2 Information on the Ice Cloud Imager (ICI) instrument
3.3 Information on the Microwave Limb Sounder (MLS) instrument
3.4 Protection criteria
3.5 Technical characteristics of the EESS (passive) systems
3.5.1 Representative antenna pattern for MLS
4 Technical characteristics of the active services in relevant frequency
bands
4.1 Fixed service
4.2 Fixed-satellite service (space-to-Earth) in the frequency band
232-240 GHz
4.3 Amateur and amateur-satellite services
5 Propagation aspects of Earth-to-space paths in the frequency range
231.5-252 GHz
6 Sharing and compatibility studies
6.1 Sharing between EESS (passive) (Conical scan) and fixed service
6.1.1 EESS (passive) characteristics
6.1.2 Fixed service characteristics
6.1.3 Maximum FS e.i.r.p. in direction of the EESS
(passive) satellite
6.1.4 Conclusions for ICI vs fixed service
6.2 Sharing between EESS (passive) (Limb sounding) and fixed
service
6.2.1 Study A
6.2.2 Study B
6.2.3 Conclusions for EESS (passive) (Limb sounding) vs
fixed service
6.3 Sharing between EESS (passive) and GSO FSS (space-to-Earth)
6.3.1 Simulation assumptions
6.3.2 Simulation results
6.3.3 Study summary
6.4 Sharing between EESS (active) and FS in the 237.9-238 GHz band
6.4.1 Context
6.4.2 EESS (active) characteristics
6.4.3 Fixed service characteristics
6.4.4 Interference from FS to EESS (active)
6.4.6 Summary
6.5 Adjacent band compatibility between EESS (passive) and FS/MS at
around 239.2 GHz
6.5.1 Context
6.5.2 Sharing between EESS (passive) (Conical scan) and
FS
6.5.3 FS emissions masks
6.5.4 Summary
Annex 1 Methodology used to derive number of FS links on a population based
deployment