The AN/PSN-13 Defense Advanced GPS Receiver (DAGR; colloquially, "dagger") is a handheld

GPS The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite sy ...

receiver used by the

United States Department of Defense The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national secur ...

and select foreign military services. It is a military-grade, dual-frequency receiver, and has the security hardware necessary to decode the encrypted P(Y)-code

GPS signal GPS signals are broadcast by Global Positioning System satellites to enable satellite navigation. Receivers on or near the Earth's surface can determine location, time, and velocity using this information. The GPS satellite constellation is op ...

s. Manufactured by

Rockwell Collins Rockwell Collins was a multinational corporation headquartered in Cedar Rapids, Iowa, providing avionics and information technology systems and services to government agencies and aircraft manufacturers. It was formed when the Collins Radio C ...

, the DAGR entered production in March 2004, with the 40,000th unit delivered in September 2005. It was estimated by the news source ''Defense Industry Daily'' that, by the end of 2006, the USA and various allies around the world had issued almost $300 million worth of DAGR contracts, and ordered almost 125,000 units. The DAGR replaced the

Precision Lightweight GPS Receiver The AN/PSN-11 Precision Lightweight GPS Receiver (PLGR, colloquially "plugger") is a ruggedized, hand-held, single-frequency GPS receiver fielded by the United States Armed Forces. It incorporates the Precise Positioning Service — Security ...

(PLGR), which was first fielded in 1994. Rockwell Collins also manufactures a GPS receiver known as the "Polaris Guide", that looks like a DAGR, but uses only the civilian C/A code signals. These units are labelled as "SPS", for "

Standard Positioning Service The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite sys ...

", and may be possessed by non-military users.

Features

* Graphical screen, with the ability to overlay map images. * 12-channel continuous satellite tracking for "all-in-view" operation. * Simultaneous L1/L2 dual frequency GPS signal reception. * Capable of Direct-Y code acquisition * Cold start first fix in less than 100 seconds. * Extended performance in a diverse jamming environment. ** 41 dB J/S maintaining state 5 tracking. ** 24 dB during initial C/A code acquisition. * Utilizes Receiver Autonomous Integrity Monitoring (RAIM). * Selective Availability/Anti-Spoofing Module (SAASM) compatible (currently version 3.2). *

Wide Area GPS Enhancement Wide Area GPS Enhancement (WAGE) is a method to increase the horizontal accuracy of the GPS encrypted P(Y) Code by adding additional range correction data to the satellite broadcast navigation message. Per a 1997 article, the navigation message fo ...

(WAGE) compatible. * Resistant to multi-path effects. * Can be used as survey for weapons systems * Fielded to the

U.S. Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cl ...

U.S. Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through com ...

U.S. Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage o ...

U.S. Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Sign ...

and select foreign military forces * Designed to fit in a

Battle Dress Uniform The Battle Dress Uniform (BDU) is a camouflaged combat uniform that was used by the United States Armed Forces as their standard combat uniform from the early 1980s to the mid-2000s. Since then, it has been replaced or supplanted in every b ...

's 2-magazine ammo pouch * Approximate cost to government per unit to acquire: $1,832
GPS enables DAGR to track ‘bad guys’
''. Air Force Space Command News

Comparison to PLGR

References

{{reflist

External links

* Rockwell Collins
DAGR technical specifications
* US Arm

* Wikileaks' US Arm
AN/PSN-13A DAGR Operator's Manual -- Change 1
* Brooke Clarke's excellen
DAGR Information Page
Global Positioning System Military equipment of the United States Military electronics of the United States Military equipment introduced in the 2000s