Cell Phone Jammers In Schools
From EjWiki
In Spokane, Washington, a school decided to install a cell phone jammer into the schools area to prevent students from texting or calling during class. The school has the cell phone jammer running for about a week until the FCC declared the jammer illegal because of the jammers possible interference if a student needed to use their personal cellular device for an emergency. What were schools thinking when they decided that blocking cell phone use out of school was okay without looking into FCC regulations?
The 24 satellites orbit the earth in 6 distinct trajectories. They orbit the earth twice a day at around 7,000 miles per hour at a distance of 12,000 miles. This allows their signals to be received over a large percentage of the earth's surface. The more satellite signals a GPS unit receives the more accurately it can calculate its position by triangulating the signals. The satellites orbits are placed so that nearly every part of the earth is receiving 4 signals at all times. Of course landscape and groundcover can affect this.
It seems the schools and teachers are being lazy and want to rely on technology, the cell phone jammers, to do the job for them to prevent their students from texting during class. Should the teachers be responsible for making sure the students aren't texting during class, calling, talking to the person next to them, doodling, day dreaming or in general being a distraction or not paying attention? Maybe the teachers need to step up their lesson plans and make leaning fun and interesting and also keep the kids interest by adding MORE technology into the classroom.
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Despite the fact that GPS has umpteen applications in civil, military and commercial use, many people seem to resent the fact that it can also take away their right to privacy. Nowadays companies are using GPS devices to monitor their vehicle fleets which are sent out for delivery of goods to the customers and other field activities. These GPS devices keep a tab on the whereabouts of the vehicle and the driver too. If you have been in such a position of constant surveillance, you would understand perfectly how uncomfortable it feels. Portable GPS jammers can come to your rescue in such situations. So a GPS jammer is actually a boon to people who are being pestered by the constant surveillance of their jealous lovers, nosey spouses or snooping bosses.
Another advantage is that you will stop the irritating breaks by phone ringing while making a significant conversation. Envisage that you are in the thick of a great deal and somebody's phone is ringing. With the aid of GPS jammer this will not occur. If it was ringing before it was interlocked, after you disable the jamming device, you will get a voice message putting you in the picture about a missed call.
The GPS receiver is the device that we are all familiar with. In the car, hand-held units, data collectors, and GPS surveyor equipment all make use of the Global Positioning System. They receive a low power radio signal from the satellites overhead if they are in line-of-sight.
Cell phones are becoming more and more commonly found in small children's book bags now a day. Parents feel safe knowing that their children can get a hold of them at any time of day and be in constant contact with their little ones. Whether the contact be through text messaging, calling or social networking, parents like the fact that their children can get a hold of them through the use of cellular devices. The times have changed drastically, we went from not having much contact with people that are not physically around you, to having constant contact with everyone; everyone on your Facebook friends list, MySpace friends list, cell phone contact etcetera. Before it was a mere, "See you when I get home." Or, "See you after school." Now parents can call their kids at lunch, arrange meeting places, talk to the schools, their kids friends parents to arrange carpooling and so much more.
The GPS earth monitoring stations, of which there are 4 unmanned and 1 master stations, are responsible for relaying position data from the satellites to the master station. The master station uses this data to correct the position of the sat tiles which is then transmitted back to the satellites. This keeps the data that the satellites transmit synchronized to provide accurate coordinate information
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