Joined: 11/07/2002 14:36:40 Posts: 23708 Location: Hampshire, UK
Posted: Wed Feb 22, 2012 10:28 am Post subject: UK GPS Jammer Use Revealed
A study by The Sentinel research project (SErvices Needing Trust In Navigation, Electronics, Location & timing) has, for the first time, revealed the levels of GPS jammer us in the UK.
The study used 20 roadside monitors to detect the presence of GPS jammers and, in one location alone, more than 60 GPS jamming incidents were detected in a six month period.
GPS jammers are illegal to use but small, portable devices are widely available. GPS is commonly used to track commercial vehicles and most jammers are used by drivers to thwart this. The study group believe there may be as many as 450 occurrences every day of GPS jammer usage.
Jammers vary wildly in effectiveness and power output. A recent study by GPSWorld of 18 commercially available receives showed an effective range that varied from 300 meters up to 6 kilometers. The danger of such devices affecting critical safety systems is obvious. In 2009 investigators discovered that problems with a navigation aid at Newark airport in the US were caused by a GPS jammer used in a truck that passed each day.
Data from Sentinel monitors have already be used to identify one driver using a GPS jammer but with increasing reliance on GPS for navigation, safety systems, financial market transactions and mobile telephone and power network operation, the project hope to develop better detection systems that can detect jammers and identify the vehicle in which is it being used.
Posted: Wed Feb 22, 2012 2:30 pm Post subject: Are you kidding me?
Quote:
A recent study by GPSWorld of 18 commercially available receives showed an effective range that varied from 300 meters up to 6 kilometers
I've read probably all articles at GPSWorld website and I haven't seen such information there. Maybe I've missed it? Give a link please, because GPS jammers have radius of 5 meters (example), 10 meters, sometimes 15 meters maybe, but it is a limit for civil portable models. The jamming radius of 300 meters and up to 6 kilometers you've mentioned is the radius of military jammers, huge and heavy devices which are carried by soldiers in big backpacks. Such powerful devices are not available for common civilians.
Joined: 11/07/2002 14:36:40 Posts: 23708 Location: Hampshire, UK
Posted: Wed Feb 22, 2012 2:36 pm Post subject:
I linked to the GPS World item in the sources link at the foot of the story.
GPS World wrote:
The weakest of the four jammers affected tracking at a range of about 300 meters and acquisition at about 600 meters, while the strongest affected tracking at a range of about 6 kilometers and acquisition at about 8.5 kilometers.
_________________ Darren Griffin - Editor I ran the 2013 London Marathon in support of the National Autistic Society see here.
Joined: 12/09/2002 14:25:05 Posts: 94 Location: Hampshire, United Kingdom
Posted: Wed Feb 22, 2012 9:43 pm Post subject: Re: UK GPS Jammer Use Revealed
News Team wrote:
GPS jammers are illegal to use
I've seen this quoted in all the articles. Would you know what legislation applies? I assume that it must be something generic like the Wireless Telegraphy Act rather than anything specific to GPS jammers? _________________ Philip
Joined: 11/07/2002 14:36:40 Posts: 23708 Location: Hampshire, UK
Posted: Wed Feb 22, 2012 9:46 pm Post subject:
Indeed it's the Wireless Telegraphy Act. You can't operate any transmitter unless you have a licence for use on that band (unless it's one of the bands exempt from the licence requirements).
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