Coordinating Committee for Multilateral Export Controls
GPS "CoCom limits": Fixed value according to source
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=== GPS "CoCom limits" === |
=== GPS "CoCom limits" === |
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In [[GPS]] technology, the term "CoCom Limits" also refers to a limit placed on GPS receivers that limits functionality when the device calculates that it is moving faster than {{convert|1000|kn|m/s}} and/or at an altitude higher than {{convert| |
In [[GPS]] technology, the term "CoCom Limits" also refers to a limit placed on GPS receivers that limits functionality when the device calculates that it is moving faster than {{convert|1000|kn|m/s}} and/or at an altitude higher than {{convert|18000|m|abbr=on}}.{{cite web |author=js |date=October 6, 2010 |title=COCOM GPS Tracking Limits |url=http://ravtrack.com/GPStracking/cocom-gps-tracking-limits/469/ |accessdate=July 26, 2011 |publisher=RAVTrack.com}} This was intended to prevent the use of GPS in [[intercontinental ballistic missile]]-like applications. |
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Some manufacturers apply this limit only when both speed and altitude limits are reached, while other manufacturers disable tracking when either limit is reached. In the latter case, this causes some devices to refuse to operate in very-high-altitude balloons.{{cite web |last=Graham-Cumming |first=John |title=GAGA-1: CoCom limit for GPS |url=http://blog.jgc.org/2010/11/gaga-1-cocom-limit-for-gps.html |accessdate=July 26, 2011 |publisher=jgc.org}} |
Some manufacturers apply this limit only when both speed and altitude limits are reached, while other manufacturers disable tracking when either limit is reached. In the latter case, this causes some devices to refuse to operate in very-high-altitude balloons.{{cite web |last=Graham-Cumming |first=John |title=GAGA-1: CoCom limit for GPS |url=http://blog.jgc.org/2010/11/gaga-1-cocom-limit-for-gps.html |accessdate=July 26, 2011 |publisher=jgc.org}} |
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