Is GPS Always A Sure Thing?


The Global Positioning System, or GPS, is a vital service embedded deep into the lives of modern civilization. No one could have known how imperative this design would be across all areas of life. We have everything from self-driving cars to geofencing to finding a safe route home. The problem with GPS however, is it can be jammed by ill seekers. GPS relies on weak signals from about 12,600 miles above our Earth. GPS service is easily interrupted by underground tunnels, mountain ranges, and high rise cities. So how reliable is GPS? Well, there are pocket-sized GPS jammers available to buy online for cheap. The range is small and only shoots a radius of a few meters, yet someone with a little know-how could actually build a device to encompass large areas.
The consequences of not having it together with GPS technology are more difficult than simply not being able to find a nearby Starbucks. Failure of GPS can mean complete loss of control, especially for a force such as an airplane or sea vessel. Do we have a GPS backup? So far, our GPS system consists of global coverage of just 32 orbiting satellites. You can see nine satellites at any given time. The distance between the satellites and us means the signals are very easy to jam. The solution to a potential threat with GPS would be to consider other alternatives to GPS, or even building ground-based alternatives in lieu of worst-case scenario would occur.blockedsignal
Unintentional interference has already occurred without most even noticing it. You can be in your car driving and the navigation system drops out for maybe 30 seconds or less. Reports have that this has already happened with huger risks such as jets barreling through the sky.
It is explained that since GPS has been around for awhile, and seemed dependable, many other navigation systems (some used as a backup) have been removed now, making us solely dependent on GPS navigation system. They were considered expensive to maintain and only covered local areas. Yet, perhaps this is the exact reason we need to keep those other navigation systems in place. Researchers say critical infrastructure can be impacted by GPS failure to the extent of ‘loss of life’. Interference can include plane and airport navigation systems, ships and security vans, and emergency service vehicles.
For now, no one seems to want to discuss this as a problem. One researcher even said it is a touchy subject everyone is afraid to talk about. This in and of itself, is a huge problem. We are basically setting ourselves up for a target. Never mind the electrical grid, worry about devastation from a cheap jamming into our GPS system. Next time, when you are deep in your GPS routing a cycle path home and your GPS blanks out for a minute, consider the consequences of this on a large scale. Maybe people should talk about it.

What Can You Do With 3G?


In the ever-changing universe of cell phone technology, there are people who actually don’t know a whole lot about the ‘science’ behind their phones. The fascination for the latest phone brings such exhilaration, that unless you’re a tech nerd; it is easy to overlook how your phone got to where it is today.
When speaking of 3G phones this is simply a 3rd Generation Mobile Telecommunications. This technology suggests there have been two previous generations of phones before the 3G (known as 1G and 2G). Each generation comes with improvements in terms of data transfer speed and reliability. Sometimes the advancement also means new little tweaks and features. There is an increased need for faster internet and apps so each generation of mobile technology brings the solution. A 3G phone is your broadband mobile device which opens up a whole range of services available to you. Once you learn how your phone functions, you will discover the endless possibilities of owning a 3G mobile.

In this technology, this 3rd generation device has between 144kb/s up to 2mb/s. Simply, this is about connectivity and download speed. Having a 3G device allows you to access the internet through the mobile from almost anywhere. It also allows for data and voice to be transmitted at same time (think of video calls). As with any mobile device remember your transfer speed can be interrupted or slowed down due to numerous interruptions such as network traffic, locations, and weather. Another important factor to consider is your data plan. Unless you have a large data allowance, it is easy to use up your data quickly for the time period between payments, and charges could apply for extra data usage. Always know your data plan, and what your data limit is set at. Your internet surfing will also drain your battery quicker, particularly on a 3G or newer 4G Smartphone.There are advanced versions of the 3G which will connect faster to networks. If the letter H appears on your Smartphone screen, this means you have used this technology. It is an enhanced version of 3G called HSDPA, like a 3.5G but not yet a 4G, still it is a significant boost in speeds.

110510_iphone_ap_328There is a great selection of mobile devices available with 3G. These cell phones and tablets provide a superior connection and fast download speeds. Even with the introduction of the 4G now, which boasts of potential download speeds of at least 100mb/s, the 3G still is perfect for the average user. Acquiring a 3G is ultimately less expensive too, as with each new generation of technology there is the high purchase ticket with it. Sometimes it is better to familiarize the abilities of this technology on a less costly device. The 3G technology is so nice; you might even decide to stick it out for awhile with your personalized device.