Precision Lightweight GPS Receiver
Encyclopedia
Rugged computer
A rugged computer is a computer specifically designed to reliably operate in harsh usage environments and conditions, such as strong vibrations, extreme temperatures and wet or dusty conditions...
, hand-held, single-frequency GPS receiver fielded by the US military. It incorporates the Precise Positioning Service - Security Module (PPS-SM) to access the encrypted P(Y)-code GPS signal
GPS signals
The satellites of the Global Positioning System broadcast radio signals to enable GPS receivers on or near the Earth's surface to determine location and synchronized time. The GPS system itself is operated by the U.S...
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Introduced in January 1994, and extensively fielded until 2004 when it was replaced by its successor, the Defense Advanced GPS Receiver
Defense Advanced GPS Receiver
The Defense Advanced GPS Receiver is a handheld GPS receiver used by the United States Department of Defense and select foreign military services...
(DAGR). In that time period more than 165,000 PLGRs were procured worldwide, and despite being superseded by the DAGR, large numbers remain in unit inventories and it continues to be the most widely used GPS receiver in the US military.
The PLGR measures 9.5 by 4.1 by 2.6 inches and weighs 2.75 pounds (1.2 kg) with batteries. It was originally delivered to the US military with a six-year warranty, however this was extended to 10 years in June 2000.