Research Article

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 locationLatitude (Yong-in)37.43°N
Longitude (Koreasat-3)116°E
Elevation angle45.20°
Azimuth angle198.1°
Sea level0.142 https://static-02.hindawi.com/articles/ijap/volume-2012/415398/figures/

Climate zoneITU-R modelK zone

Down linkPolarizationDual liner
EIRP34 https://static-02.hindawi.com/articles/ijap/volume-2012/415398/figures/
Frequency12.25 https://static-02.hindawi.com/articles/ijap/volume-2012/415398/figures/

AntennaTypeCassegrain
Diameter7.2 m (2001), 11 m (2007)

Rain gageTypeTipping bucket
SizeDiameter 200 https://static-02.hindawi.com/articles/ijap/volume-2012/415398/figures/
Resolution0.5 https://static-02.hindawi.com/articles/ijap/volume-2012/415398/figures/
AccuracyLess than 5%
(for rain rate of 10 mm/h)
Operative temperature−40°C to +50°C