Detail of Frequency Band

Band reserved for non-civil utilisation. If civil utilisation is also stated with priority, the band is being used equally with civil utilisation on the basis of coordination.

Non-civil stations can use the band with subsidiarity to civil ones (which use the band with priority), but must not interfere and do not have rihgt to protection against interference by civil utilisation.

Non-civil stations cannot use the band.

Band reserved for civil utilisation. If non-civil utilisation is also stated with priority, the band is being used equally with non-civil utilisation on the basis of coordination.

Civil stations can use the band with subsidiarity to non-civil ones (which use the band with priority), but must not interfere and do not have rihgt to protection against interference by non-civil utilisation.

Civil stations cannot use the band.

In Regions 1 and 3 (except for Japan), in the band 8 025-8 400 MHz, the Earth exploration-satellite service using geostationary satellites shall not produce a power flux-density in excess of the following values for angles of arrival (θ), without the consent of the affected administration:
−135 dB(W/m²) in a 1 MHz band for 0 ≤ θ ≤ 5°
−135 + 0.5 (θ − 5) dB(W/m²) in a 1 MHz band for 5 ≤ θ ≤ 25°
−125 dB(W/m²) in a 1 MHz band for 25 ≤ θ ≤ 90°

The band is foreseen to be designated for NATO harmonised non-civil use.

Aircraft stations are not permitted to transmit in the band 8 025 – 8 400 MHz.