AIXM 5 defines the class RadioCommunicationChannel as follows:
A radio frequency band of sufficient width and associated identification data used for one- or two-way communication from or to a transmitter on the ground or in the air.
Basically, a RadioCommunicationChannel is used by a Service or a NavaidEquipment.
The main attributes of the RadioCommunicationChannel iare the frequency or channel on which the Service or the Navaid is transmitting and can be received.
- for one way broadcast (e.g. ATIS); frequencyTransmission is coded
- for two-way radio communication on the same frequency (single channel simplex); both frequencyTransmission and frequencyReception contain the same value
- for two-way radio communication on two distinct frequencies (double channel simplex, offset frequency simplex, duplex); frequencyTransmissioncontains the transmission frequency and frequencyReception contains the reception frequency (as seen by the service provider).
The RadioCommunicationChannel.rank attribute can be used indicating the role of the communication channel, in terms of primary, alternate, emergency, etc.
The RadioCommunicationChannel may have also a schedule define when it is available (for details of Timesheet encoding see Schedule [TSH]).
Coding Rules for Radio Communication Channel
| Identifier | Data Encoding Rule | Justification | Data Verification Rule (UID) | Remarks |
|---|---|---|---|---|
| RCC-201 | Each RadioCommunicationChannel shall have assigned frequencyTransmission value | AIXM 4.5 / Minimal data rule | AIXM-5.1_RULE-1A3376 | |
| RCC-101 | RadioCommunicationChannel.frequencyTransmission and RadioCommunicationChannel.frequencyReception shall be encoded in case of two-way radio communication is provided. | Data harmonisation | TBD |
Coding Examples
See topics ATS Unit providing Service, Controlling Unit for Route Segment, and Controlling Unit for En-route Holding.