Why should you use a Sat Nav Even if you know the Way?

Satellite Navigation units have become very popular recently, and are now a common site in many cars, with many car manufacturers offering Sat Navs already installed in mid to high range models of their vehicles. If you do not own a Sat Nav, one reason for this may be because you consider it to be an added expense, especially if you already know your journey well, or are quite comfortable using maps and road signs for new destinations. However there are features on many modern Sat Nav units that enable the devices to receive traffic information. This feature can be used for highlighting roads that are congested. The Sat Nav device can then recalculate your journey and offer you another alternative route that will avoid any problem areas. Traffic Message Channel (TMC) is a very useful traffic and travel gadget for drivers. It is typically digitally coded using the Radio Data System (RDS) on conventional FM radio broadcasts. It allows silent delivery of high quality accurate, timely and relevant information, in the language chosen by the user and without interrupting normal services. When the data is integrated directly into the navigation system, this then gives the driver the option to take alternative routes to avoid traffic incidents. Another method of receiving traffic updates is by connecting a GPRS enabled mobile to your Sat Nav unit. The mobile phone can then receive traffic updates via GPRS, which are relayed to your GPS via Bluetooth. The main disadvantage of this is that GPRS data is usually charged as an extra cost from your mobile phone provider. When calculating a route the Sat Nav will use the average speeds of the roads to work out the quickest route to your destination. If there is a conjestion then the device will recalculate your journey. The unit will take into account the average speeds on the roads and calculate a new route. While the new route may be longer in distance, the GPS unit will know that it will take less time as the vehicle will be travelling faster.

If you’re after a sat nav then it’s important that you look around for the best sat nav deals . A good way of doing this is to shop online as you can then compare models and prices easily.