Military messages often need to be transferred over low bandwidth networks, in particular HF radio and satellite networks. The two military specifications for this type of messaging environment are NATO's STANAG 4406 Annex E and ACP 142 developed by the CCEB (Combined Communications-Electronics Board – AU, CA, NZ, US, UK).

This free paper describes scenarios that require these special technologies, and then gives an overview of the technologies and how they address the technical problems.