Link-ZA or UHF radio or satellite link. It uses TDMA and CSMA to establish links and share data with up to 31 active nodes and an unlimited number of passive nodes. Static or dynamic routing tables are supported. Link-ZA node controllers have store and forward capability to transfer data between different radio nets. A node controller can access multiple radios and automatically select the most appropriate link. Link-ZA Link-ZA (also "Link ZA" or "LinkZA") is a tactical data link system used by the South African National Defence Force. It is the data communication component of the "Combat Net Interoperability Standard" (CNIS).
Aircraft registration being extended, leaving aircraft from both SARs with registration marks of only four characters, as opposed to the norm of five. Aircraft registration Every civil aircraft must be marked prominently on its exterior by an alphanumeric string, indicating its country of registration and its unique serial number. This code must also appear in its Certificate of Registration, issued by the relevant National Aviation Authority (NAA). An aircraft can only have one registration, in one jurisdiction. In accordance with the Convention on International Civil Aviation (also known as the Chicago Convention), all civil aircraft must be registered with a national aviation