GPS devices are becoming more and more popular in a society that relies frequently on pin point accuracy and fast data transfer. Some of the most popular GPS receivers on the market are the GPSlim 240 and the GPSlim 236 – read below to find out how they work and why they are a great choice when it comes to selecting such a device. A very useful accessory for a PDA or any other form of GPS receiver is the HGP-200 multifunction PDA Cradle, also reviewed below.
GPSlim 240
The full name of this receiver is HOLUX GPSlim240 Bluetooth GPS receiver and it is one of the smallest and most compact GPS receivers on the market today. There are several features that impress, such as the low power consumption integrated chipset, the powerful yet small GPS antenna and its Bluetooth connectivity features. The GPSlim240 is a perfect tool both for personal and business needs, as it combines the versatility of GPS receivers with the ability to send satellite data through other devices equipped with a Bluetooth interface (PDAs, notebooks). The extent to which this device can be used is phenomenal, as you can employ it to do various tasks such as car navigation, security, mapping, surveying, and agricultural applications.
The satellite tracking abilities of the HOLUX GPSlim240 Bluetooth GPS receiver are also excellent, as it can track 20 satellites at a time. Data updating is also very fast, with 1-second updates for position data and 1/10 second updates for satellite signal. All this technology however is presented in a stylish and compact case, and the receiver is appealing to a large variety of social categories.
GPSlim 236
Some of the most advanced and user friendly trip guiding tools are presented in one single device, the GPSlim 236. This Wireless GPS Receiver designed by Holux has a SiRFstar III high sensitivity chipset built-in and offers the added benefits of Bluetooth and advanced GPS receiving. Eliminating the cable from the system, the GPSlim 236 manages to be a highly versatile device that uses the full power of wireless Bluetooth connectivity. Other features of the GPSlim 236 include the dual function (Wireless GPS + G-mouse), the Built-in rechargeable Lithium-ion battery without external power supply and the compatibility with Bluetooth™ Serial Port Profile (SPP). The Vehicle tracing & Location base services include PDA/Notebook navigation, car navigation and marine navigation. The GPSlim 236 is lightweight, compared to many of its competitors and comes in a very compact case, that is both functional and elegant at the same time.
The invention of the GPS navigation system is not as new as most people believe; they have been around and used ever since the first GPS satellite was launched into space back in 1978. Global positioning satellites have many civilian and military applications, but one of the most pervasive is navigation.
However, using a GPS navigation system inside an ordinary automobile, is somewhat different than using it on airplane. Transportation by car is dependent on the roads that are traveled. In reality, GPS readings alone such as longitude, latitude and altitude are for all practical purposes useless when you're driving to Aunt Mabel's house. When driving an automobile you can end up going through urban canyons and tunnels, where satellite singles cannot get through. So a different type of GPS technology is needed for automobile GPS navigation systems.
There has been potential for years in automobile GPS navigation systems, and industry has tried various ways to implement them. In 1983, Honda introduced an automobile navigation system that was based primarily on an accelerometer, not on GPS. It wasn't until 1990 that an automobile GPS system was released to the public consumer by Pioneer. Automobile GPS Navigation systems had yet to really come into use until Magellan released its version in the US in 1995. Since then more portable GPS systems have been developed for greater ease of use for people.
Automobile GPS Navigation System Components
An automobile GPS Navigation System requires a GPS receiver and a map database. Some systems also have drive train sensors to supplement when GPS signals are blocked for brief periods.
The database map converts the GPS portable systems coordinates into map locations, such as street names and addresses. Some map databases contain GPS coordinates for specific locations, such as points of interest or rest stops. It's the information in the database, however, that directs you to your location, either visually or by voice. Which means your GPS navigation system is only as good as your GPS car systems map database.
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