IRIG - AbsoluteAstronomy.com

The Inter Range Instrumentation Group (IRIG) is the standards body of the Range Commanders Council (RCC). They publish a number of standards through the RCC Secretariat at White Sands Missile Range

White Sands Missile Range

White Sands Missile Range is a rocket range of almost in parts of five counties in southern New Mexico. The largest military installation in the United States, WSMR includes the and the WSMR Otera Mesa bombing range...

(WSMR).

The best known IRIG standard is the IRIG Timecode

Inter-range instrumentation group time codes

Inter-range instrumentation group time codes, commonly known as IRIG timecodes, were created by the TeleCommunications Working Group of the Inter-Range Instrumentation Group, the standards body of the Range Commanders Council...

standard used to timestamp

Timestamp

A timestamp is a sequence of characters, denoting the date or time at which a certain event occurred. A timestamp is the time at which an event is recorded by a computer, not the time of the event itself...

video, film, telemetry, radar, and other data collected at test ranges.

Time and Frequency stations using IRIG audio signalling are

BPM (time service)
BPM (time service)
BPM is the People's Republic of China's national time signal service, operated by the Chinese Academy of Sciences. It is located at .It is broadcast from the National Time Service Center in Pucheng county about 70 km northeast of Lintong...

(China)
CHU (radio station)
CHU (radio station)
CHU is the call sign of a shortwave time signal radio station operated by the Institute for National Measurement Standards of the National Research Council of Canada.- History :...

(Canada) and
WWV (radio station), WWVH
WWVH
WWVH is the callsign of the U.S. National Institute of Standards and Technology's shortwave radio time signal station in Kekaha, on the island of Kauai in the state of Hawaii....

(US).

IRIG 106 is a comprehensive telemetry

Telemetry

Telemetry is a technology that allows measurements to be made at a distance, usually via radio wave transmission and reception of the information. The word is derived from Greek roots: tele = remote, and metron = measure...

standard to ensure interoperability in aeronautical telemetry application at RCC member ranges. IRIG 106 Chapter 10 is the standard for digital flight data recorders. IRIG Standard 313-01 addresses test standards for flight termination receiver

Receiver (radio)

A radio receiver converts signals from a radio antenna to a usable form. It uses electronic filters to separate a wanted radio frequency signal from all other signals, the electronic amplifier increases the level suitable for further processing, and finally recovers the desired information through...

s/decoder

Decoder

A decoder is a device which does the reverse operation of an encoder, undoing the encoding so that the original information can be retrieved. The same method used to encode is usually just reversed in order to decode...

s.

As many older modes of IRIG signaling predate modern time and date formats, all devices using IRIG for time synchronization in these older formats must have internal software that is Y2038 date problem compliant.

See also