ITU-R RS.1347 PDF

Introduction

The 1 215-1 260 MHz frequency band is allocated to the radionavigation-satellite service (RNSS) and is used by both the Global Positioning System (GPS) and the Global Navigation Satellite System (GLONASS-M). The 1 215-1 300 MHz band is used by spaceborne active microwave sensors under the provisions of Footnote S5.333 of the Radio Regulations. The only active sensor requiring use of this band is the synthetic aperture radar (SAR). This annex presents the compatibility analyses of typical spaceborne synthetic aperture radars (SARs) into GPS and GLONASS-M receivers for both acquisition and tracking phases and presents the compatibility test results between the SAR and GPS for the tracking phase. In addition, the GPS L5 is under consideration for this band.