Tactical Data Links - Link 1
Key words and phrases: tactical data links, link 1, duplex digital data link, S-series messages
Link 1 is a duplex digital data link primarily used by NATO’s Air Defence Ground Environment (NADGE). It was designed in the late 50s to cater for point-to-point data communication.
Link 1 mainly provides for exchange of air surveillance data between Control and Reporting Centres (CRCs) and Combined Air Operation Centres (CAOCs)/Sector Operation Centres (SOCs) and has a data rate of 1200/2400 bit per second (bps). It is not crypto secure and has a message set (S-series) limited to air surveillance and link management data.
Within NATO, Link 1 is used by NADGE systems (NADGE/GEADGE/UKADGE, etc). Most mobile CRCs are also equipped with Link 1 capabilities. Additionally most NATO Nations employ receive-only equipment at air bases and SHORAD centres for Early Warning purposes.
Message standards are defined in STANAG 5501 while standard operating procedures are laid down in ADatP 31.
The three new NATO members, (Czech Republic, Poland and Hungary) and two PfP nations will soon receive US built Air Sovereignty Operations Centres (ASOCs). These ASOCs are C² centres which will be capable of integrating up to 18 Air Traffic Control and Air Defence (Early Warning) Radars. The ASOCs will be equipped with a limited Link 1 capability for data exchange between ASOCs and the NATO Air Defence Ground Environment. The US has tailored the NATO Link 1 protocol to meet the ASOC requirements. (i.e. the exchange of air picture information). Other PfP nations have also shown interest in the ASOC Programme and will probably receive similar ASOCs.
Data Link descriptions: Tactical Data Links | Link 16 | Link 11 | Link 22 | IJMS | Link 1 | Link 14 | Link 4 | Other protocols | CDL, TCDL & HIDL | Satellite Link 16 | Variable Message Format - VMF
Further information is available from:
Email:
Tel: +44 (0)1252 732555
