The Committee on Radio Astronomy Frequencies (CRAF) is a committee of
the European Science Foundation (ESF).
Additional allocation: The band 5010 - 5030 MHz is also allocated to the radionavigation-satellite service (space-to-Earth) (space-to-space) on a primary basis. In order not to cause harmful interference to the microwave landing system operating above 5030 MHz, the aggregate power flux-density produced at the Earth's surface in the band 5030 - 5150 MHz by all the space stations within any radionavigation-satellite service system (space-to-Earth) operating in the band 5010 - 5030 MHz shall not exceed -124.5 dB(W/m2) in a 150 kHz band. In order not to cause harmful interference to the radio astronomy service in the band 4990 - 5000 MHz, the aggregate power flux-density produced in the 4990-5000 MHz band by all the space stations within any RNSS (space-to-Earth) system operating in the 5010 - 5030 MHz band shall not exceed the provisional value of -171 dB(W/m2) in a 10 MHz band at any radio astronomy observatory site for more than 2% of the time. For the use of this band, Resolution 604 (WRC-2000) applies.