[teqc] Fwd: [wrhmc] URGENT NOTICE FOR GPS USERS: War Games and GPS Jamming

Glen Mattioli mattioli at unavco.org
Tue Jan 30 14:14:49 MST 2018


TEQC users,

This came to my attention from Scott Martin at CalTrans through the WRHM email list.

Glen S. Mattioli, Ph.D.
Director of Geodetic Infrastructure
UNAVCO, Inc.
6350 Nautilus Drive
Boulder, CO 80301-5394
303-381-7554

http://www.unavco.org
mattioli at unavco.org

> WRHM members,
>  
> This came from one of our internal users, but I thought it might be of interest to all of you, since the impact area is so large.
>  
> Scott
>  
> Scott P. Martin, PLS
> California Geodetic Coordinator
> Geodetic Control & GPS Surveys
> Office of Land Surveys
> California Department of Transportation
> 1727 30th Street, MS-35
> Sacramento, CA. 95814
> Office- 916-227-7328
>  
>  
>  
> Good Morning All,
>  
> I was just informed by my contact at Trimble Support that the United States Air Force is performing the largest GPS scrambling event in history for their Red Flag Air Wave Exercise. This may have some adverse effects on GPS signals across a large part of the western US. The exercise has already begun and will run from January 26, 2018 until February 16, 2018. According to the article (see link below to access the full article) this may even effect some air traffic in some western airports..  
>  
> For field users, please be mindful of your residuals and do regular checks into known positions while performing RTK surveys. In addition when performing static surveys, longer data collection times may be necessary to produce the desired accuracies..
>  
> There should be limited effects on post processed data, but for any data sets collected during this time frame just be aware of the signal jamming..
>  
>  
> Here is the article link:
> http://www.thedrive.com/the-war-zone/17987/usaf-is-jamming-gps-in-the-western-u-s-for-largest-ever-red-flag-air-war-exercise <http://www.thedrive.com/the-war-zone/17987/usaf-is-jamming-gps-in-the-western-u-s-for-largest-ever-red-flag-air-war-exercise> 
>  
>  
>  
> 
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