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Radiocommunications Advisory Guidelines (Managing Interference from Spectrum Licensed Transmitters – 850/900 MHz Band) 2021
17Protection requirements
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17 Protection requirements
A spectrum licensed radiocommunications transmitter that is a base station, and that operates in the 900 MHz band, must protect existing stations appearing in the Register in the 960 MHz to 980 MHz frequency band under the licence type “aeronautical system” to a level of -129 dBW/MHz at the antenna connector, assuming an antenna gain of 9 dBi in any direction if gain and azimuth is not otherwise specified in the Register.