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Also known as the SMART-T, the AN/TSC-154 is a U.S. military satellite earth station and individual user access facility. It is normally mounted on a High Mobility Multi-Purpose Wheeled Vehicle (HMMWV), but can be moved and set up in a free-standing mode by a single soldier. Its original role was interconnecting Mobile Subscriber Equipment or providing extended range connection to MSE users.

It transmits digital communications in EHF and receives in SHF, working with the MILSTAR satellite. Individual channels range from 75 bps to 1.544 Mbps, witin an aggregate of 2.240 Mbps.

With the introduction of the Joint Network Node (JNN), another AN/TSC-154 function was providing non-line-of-sight communications from the JNN at brigade combat team level to the JNNs at battalion level. [1] The JNN is a predecessor of the WIN-T Warfighter Information Network-Tactical.

Family of Joint Network Node over-the-air communications systems
It is one of multiple over-the-air communications systems associated with JNN.

These were used, on an interim basis, to provide high-speed connectivity between JNNs at Brigade to Battalion level, although that mission would normally have been carried out by the short-range, line-of-sight AN/TRC-170 radios. [2]


  1. U.S. Army (September 2006), FMI 6-02.60 Tactics, Techniques, and Procedures (TTPs) for the Joint Network Node-Network (JNN-N),pp 2-7 to 2-8
  2. David J. Price (Spring, 2007), Bravo company, 2nd BSTB, 1CD JNN fielding to combat