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Tactical Network Transport–At The Halt (TNT–ATH) equipment delivers seamless, assured mission command, advanced communications and a comprehensive common operating picture in support of joint, coalition and civil missions worldwide. As part of the Army’s unified tactical network, these systems establish an at-the-halt network backbone that provides robust data, voice and video communications to command posts, using both line-of-sight (radio) and beyond-line-of-sight (satellite/tropospheric) communications nodes for multipath diversity and resiliency in contested environments.


To support expanding network requirements and improve readiness, the Army is piloting the 5th Generation Technology Insertion (5th Gen TI) to inform design, functionality and basis of issue decisions on the eventual equipment refresh of the service’s legacy ATH equipment, which is reaching end of life. The 5th Gen TI leverages advanced commercial-off-the-shelf (COTS) technology and pre-existing equipment for a common user experience. It will provide significantly more computing power, reduce size, weight and power (SWaP) and equipment setup time for increased mobility, while increasing usability, network resiliency and equipment flexibility.


Three types of robust TNT-ATH network nodes provide high-speed wide area network capability for secure voice, video and data exchange.

  • Tactical Hub Node (THN), supports division size elements
  • Joint Network Node (JNN), typically supports brigade level elements
  • Command Post Node (CPN), typically supports battalion and below level elements

The Regional Hub Node, a fourth type of node, is a fixed installation equivalent to three THNs used to support global network transport for theater-level operations.

The Satellite Transportable Terminal (STT), a highly mobile satellite system, operates in conjunction with the JNN and CPN. It is designed to establish secure voice, video and data communications virtually anytime and anywhere. The Army will also pilot a modified more agile and supportable version of the legacy STT to inform decisions on future ATH modernization efforts.



  • TNT ATH 5th GEN TI and STT Modified Work Order (MWO) prototype pilots supported by the 1st Armored Brigade Combat Team, 3rd Infantry Division



  • Equipping Army units with 5th Gen TI enhancements, as part of the Army’s TNT Modification In Service (MIS) efforts
  • Equipping units with modernized STT


  • Increment 1B Colorless Core Kits Production and Integration: General Dynamics Mission Systems (Taunton, MA)
  • Transportable Terminals: General Dynamics Mission Systems (Duluth, GA)
  • PM Support: Engineering Solutions and Products (Aberdeen, MD); JANUS (Aberdeen, MD)