Goto Section: 25.204 | 25.206 | Table of Contents
Revised as of September 1, 2021
Goto Year:2020 |
§ 25.205 Minimum antenna elevation angle.
(a) Earth station antennas must not transmit at elevation angles less
than five degrees, measured from the horizontal plane to the direction
of maximum radiation, in a frequency band shared with terrestrial radio
services or in a frequency band with an allocation to space services
operating in both the Earth-to-space and space-to-Earth directions. In
other bands, earth station antennas must not transmit at elevation
angles less than three degrees. In some instances, it may be necessary
to specify greater minimum elevation angles because of interference
(b) ESAAs in aircraft on the ground must not transmit at elevation
angles less than three degrees. There is no minimum angle of antenna
elevation for ESAAs while airborne.
[ 81 FR 55336 , Aug. 18, 2016]
Goto Section: 25.204 | 25.206
Goto Year: 2020 |
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