Comparison of Measured Rain Attenuation in the 12.25 GHz Band with Predictions by the ITU-R Model

Table 1

Measurement and experimental specifications.

System location	Latitude (Yong-in)	37.43°N
	Longitude (Koreasat-3)	116°E
	Elevation angle	45.20°
	Azimuth angle	198.1°
	Sea level	0.142 [km]
Climate zone	ITU-R model	K zone
Down link	Polarization	Dual liner
	EIRP	34 [dBW]
	Frequency	12.25 [GHz]
Antenna	Type	Cassegrain
	Diameter	7.2 m (2001), 11 m (2007)
Rain gage	Type	Tipping bucket
	Size	Diameter 200 [mm]
	Resolution	0.5 [mm]
	Accuracy	Less than 5%; (for rain rate of 10 mm/h)
	Operative temperature	−40°C to +50°C