Inter-Range Instrumentation Group
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The Inter-Range Instrumentation Group (IRIG) is the standards body of the Range Commanders Council (RCC). The group publishes standards through the RCC Secretariat at
White Sands Missile Range White Sands Missile Range (WSMR) is a United States Army military testing area and firing range located in the US state of New Mexico. The range was originally established as the White Sands Proving Ground on 9July 1945. White Sands National P ...
. The best known IRIG standard is the
IRIG timecode Inter-range instrumentation group timecodes, commonly known as IRIG timecode, are standard formats for transferring timing information. Atomic frequency standards and GPS receivers designed for precision timing are often equipped with an IRIG outp ...
used to
timestamp A timestamp is a sequence of characters or encoded information identifying when a certain event occurred, usually giving date and time of day, sometimes accurate to a small fraction of a second. Timestamps do not have to be based on some absolut ...
video, film, telemetry, radar, and other data collected at test ranges. The following radio time sources broadcast IRIG timecodes: * BPM (China) * CHU (Canada) * WWV and
WWVH WWVH is the callsign of the U.S. National Institute of Standards and Technology's shortwave radio time signal station located at the Barking Sands Missile Range, in Kekaha, on the island of Kauai in the state of Hawaii. WWVH is the Pacific si ...
(United States) The RCC's IRIG Standard 106 is a comprehensive
telemetry Telemetry is the in situ collection of measurements or other data at remote points and their automatic transmission to receiving equipment (telecommunication) for monitoring. The word is derived from the Greek roots ''tele'', "remote", an ...
standard for aeronautical applications at RCC member ranges. Chapter 10 of Standard 106 governs digital
flight data recorder A flight recorder is an electronic recording device placed in an aircraft for the purpose of facilitating the investigation of aviation accidents and incidents. The device may often be referred to as a "black box", an outdated name which has ...
s. IRIG Standard 313-01 prescribes test standards for flight termination receivers.


See also

Related topics *
Rocket range A spaceport or cosmodrome is a site for launching or receiving spacecraft, by analogy to a seaport for ships or an airport for aircraft. The word ''spaceport'', and even more so ''cosmodrome'', has traditionally been used for sites capable ...
Related technologies
Specification of BBC phase-modulated transmissions on long-wave
is a non-IRIG time signalling system that has many similarities to IRIG.


References

Standards of the United States Aviation standards {{rocketry-stub