Hello I have to present a weather radar technology but i m block on Air convention of communication.
I need to know how they exactly attribute licence to an aircraft and how all this aircraft can communicate without create collision between their communication .
Question one : Who attribute frequency for an Aicraft and how ? - How are they attribute telecommunication frequency for commercial Aircraft .Each time they do a new fly someone give them a new frequency band ? They have a frequency band for a specif numbers of fly ( E.g after 10 fly ) ?
- Which authority give frequency band each countries ? but that mean if it's not a international authority you can use the frequency band only in this countries
- Which authority decide into international zone what frequency band do you use ?
Question two : To much aircraft for number of channel You have more than 20 000 aircraft use in the world however I read you have 118–136.975 MHz Airband and only potentially permitting 2,280 channels so that mean a channel is use by more than one aircraft so what happen if two commercial aircraft have to use the same range of frequencies how their is not interference ?
Thanks you in advance for your supports. Best regards, CANAL Bastien