ViaSat Inc. said April 16 that it received a $31.5 million order for specialized radios to be installed in U.S. military aircraft.

Specifically, ViaSat received a full production and fielding order for what the Pentagon calls MIDS JTRS. The initials stand for Multifunctional Information Distribution System Joint Tactical Radio System.

The electronics will go in F/A-18 fighter and attack aircraft, used by the U.S. Navy and U.S. Marine Corps, as well as in two reconnaissance aircraft models flown by the U.S. Air Force: the E-8C Joint STARS and RC-135 Rivet Joint.

Carlsbad-based ViaSat said the new communications gear adds three programmable channels to legacy radios.

The Space and Naval Warfare Systems Command, aka Spawar, awarded the order under an indefinite delivery/indefinite quantity contract that was originally inked in March 2010.

ViaSat trades on Nasdaq as VSAT.