Posted by admin | Posted in Gps | Posted on 12-08-2010
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GPS antennas are an important part of any and all wireless systems. The GPS antenna works by combining a planar antenna and a frequency converter, which converts the high-frequency phase-modulated spread spectrum signal of the GPS system to an intermediate frequency. Nowadays, you can find many different types and brands of GPS antenna available in the market. You can select the one that is most suitable for your own personal or business needs. You can look up the details on the Internet of the various models available and select one that fits your needs and your budget.
Some of the key reasons to consider getting a GPS antenna include:
1) For use in a car or any other vehicle where the GPS device cannot or will not be placed near a window
2) For use when trekking or hiking in challenging geographical locations like jungles or canyons
3) For use in highly built-up areas like urban city centers
4) For use in any place where the GPS device does not have good line of sight to the sky
5) For use in a vehicle in motion to minimize temporary signal loss
6)…
Posted by admin | Posted in Gps | Posted on 05-08-2010
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If you are serious about your sport, whether it be running, cycling, hiking skiing, windsurfing or even skydiving, a gps watch can be a powerful tool for tracking, measuring and improving your performances. An advanced sports gps watch can accurately measure: What’s more, many watches with gps can plot 3D maps over a traveled route that can later be downloaded to a PC or Mac and then reviewed and analyzed in a custom software package. Combining this with advanced sports watch features, like memory storage/recall, interval timers, heart rate zones and speed, pace and distance alerts and you get a complete wrist-watch training computer, capable of taking you to the next level! While having all these features can be exciting, it can also be overwhelming when you first start shopping around for the right watch. As most gps watches are quite sophisticated, this makes it difficult to know which features suit your needs and which are nice, but most likely not ones you’ll use in day-to-day use. Our guide will take you through the process and will familiarize you with the key questions you need to ask yourself when you are comparing watches. With, the most common questions clear…
Posted by admin | Posted in Gps | Posted on 29-07-2010
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Brawn Grand Prix is a Formula One team based in Brackley in south Northamptonshire, England which was formed out of the ashes of the Honda Racing F1 team in 6th March 2009. In December 2008 Honda revealed that they were going to pull the plug on their Formula One team in an attempt to save the Honda company money during the worsening global financial downturn. This left one of the best funded and best equipped Formula One teams in the field in limbo while the management team attempted to find a buyer for the team and save 700 plus worker’s jobs at the teams Brackley HQ. Between December 2008 and February 2009 a number of possible buyers’ names were being thrown about by the media and team boss Nick Fry claimed the management was negotiating with a dozen possible buyers. The media reported that the team was close to being saved a number of times by parties including Prodrive, Mexican billionaire Carlos Slim and a ‘consortium of Brazilian investors’ however none of these came to fruition and it was soon looking likely that the only realistic option was a management buyout. In Feburary 2009 it came to light…
Posted by admin | Posted in Gps | Posted on 22-07-2010
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The basic principle of GPS navigation system to measure the known location of the satellite to the user the distance between the receiver and then integrated multi-satellite data can know the exact location of the receiver. To achieve this purpose, the satellite’s position can be based on-board clock time recorded in the satellite ephemeris identified. The user to the satellite’s distance from the satellite signal transmitted through the records to the user the experience of time, and then multiplied by the speed of light received (due to the interference of the atmosphere ionosphere, this distance is not the user and the real distance between the satellites, but pseudorange (PR): When the GPS satellites to work, it will continue to use 1 and 0 binary symbol composed of pseudo-random number (PN for short) launched navigation message. GPS pseudo-code system uses a total of two, namely civilian C / A code and the military of the P (Y) code. C / A code frequency 1.023MHz, repeat cycle of a millisecond, the code distance one microsecond, equivalent to 300m; P code frequency of 10.23MHz, repeat the cycle of 266.4 days, Code spacing of 0.1 microseconds, equivalent to 30m. The P code Y…