ITU Radio Regulations and Space Security Standards
RR Chapter VI: Provisions for services and stations – ITU Radio Regulations and Space Security Standards

ITU Radio Regulations and Space Security Standards RR21.IV: RR Article 21, Section IV: Minimum angle of elevation of earth stations

What does RR21.IV require?

Earth station antennas shall not transmit at elevation angles below 3 degrees measured to the direction of maximum radiation, unless agreed by the administrations concerned and those whose services may be affected; the value is used for coordination of receiving stations below it (21.14); space research earth stations have minimums of 5 degrees (near Earth) and 10 degrees (deep space) (21.15).

Maintained by Gerard BlokdykVerified against the published standard Control text last updated

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