Channels Sirf
 |
 43 Touch Screen GPS Navigation Car TFT FM MP3 MP4 FREE MAP 4GB  US $35.99
|
 GPS Bluetooth Receiver BTGPS3 US $55.00
|
 New 43 Car GPS Navigation FM Transimitter MTKCPU 500mHz Built in 4GB Map US $44.60
|
 GlobalSat BC 337 GPS Receiver US $31.58
|
 Holux USB Mouse GPS Receiver GR 213 US $32.00
|
 Real Time GPS Tracking Device Spy Car Auto Vehicle Tracker Track Anyone Anywhere US $175.42
|
 Real Time GPS Tracker Car Truck Fleet Service Vehicle Boat Asset Tracking Device US $427.50
|
 GlobalSat GH 625XT GS Sport Watch with heart rate monitor US $129.99
|
 US GlobalSat GPS receiver Compact flash compatible Si US $97.68
|
 GPS Vehicle Car Tracking Key System Tracker Device US $134.99
|
 NEW REAL TIME GPS TRACKER TRACKING CAR SPY LISTENING US $134.99
|
 4 in1 Personal Tracker GPS SMS GPRS VOICE US $134.99
|
 GPS Tracking Key Car Tracker Device Spy Pro System US $219.99
|
 Realtime GPS GSM GPRS Tracker Mini Tracking Device US $219.99
|
 REAL TIME GPS GSM VEHICLE CAR TRACKER TRACKING spy new US $134.99
|
 GPS GSM GPRS tracker motorbike motorcycle trackerturn off bike power remotely US $92.88
|
 GlobalSat GH 561 Bommerang Outdoor GPS US $59.99
|
 Vio330 D GPS Navigation System Navteq Vehicle SiRF 20 Channels WAAS NIB US $125.00
|
 Magellan Triton 400 GPS Receiver adventure pack bundle carrying case and sd card US $80.00
|
 GlobalSat G SAT BT 359 BT359 SiRF Star III Bluetooth GPS Receiver Module US $25.99
|
 Royaltek RBT 2100 Bluetooth Car SIRF III GPS Module US $18.99
|
 Car DVD Player GPS Navigation Stereo For Toyota Yaris Bluetooth Radio TV US $419.99
|
 Car DVD Player GPS Navigation Stereo For Toyota RAV4 2010 12 Bluetooth Radio TV US $419.99
|
 Car DVD Player GPS Navigation Stereo For Toyota RAV4 Corolla Hilux Camry Radio US $419.99
|
 In Dash Car DVD player GPS Navigation for Toyota Camry 2012 Bluetooth Radio TV US $255.00
|
 Car DVD player GPS Navigation for Toyota Camry 2007 08 09 10 11 BT Radio TV US $275.00
|
 Car DVD Player GPS Navigation Stereo For Toyota COROLLA 2009 11 Radio TV US $419.99
|
 Car DVD Player GPS Navigation Stereo For Toyota Land Cruiser Bluetooth Radio TV US $469.99
|
 D5105U Car GPS 62LCD Touchscreen Bluetooth iPod DVD Player for Focus c US $299.00
|
 70 HD SIRF5 GPS4GB US CA MAPWireless Reversing CameraTTSMP3SPEED CAMERA US $109.95
|
 7 2DIN Windows GPS WIFI 3G INTERNET Bluetooth MP3 MP4 MP5 Touch Screen SD USB US $299.00
|
 EONON E0852 43 Touch Screen DVD MP4 VCD MP3 CD JPEG TV RADIO GPS Navigation US $71.00
|
 New Realtime Watch GPS Tracker GSM GPRS Tracking Device for children TK202 US $179.95
|
 Bushnell BackTrack Original GPS Receiver model 36 0053 new still sealed US $34.99
|
 Car DVD Player GPS Navigation Stereo For Suzuki Grand Vitara Bluetooth Radio TV US $449.99
|
 Bushnell BackTrack Original GPS Receiver NEW US $50.00
|
 Car DVD Player Stereo GPS Navigation For Hyundai Santa Fe Bluetooth Radio TV US $449.99
|
 Car DVD Player GPS Navigation Stereo For Mazda 3 Can Bus Bluetooth Radio TV 7965 US $449.99
|
 D5113U 7 HD LCD Monitor iPod iPhone BT In Dash Car GPS DVD Player for BMW E46 US $455.00
|
 Magellan Triton 400 GPS Receiver Adventure Pack with Vehicle Power Adaptor NIP US $120.00
|
 5 HD SIRF4 GPS Navigator128MB RAM4GB MAPWireless cameraMP3MP4FM US $109.95
|
 Navitron 5 Inch HD Touchscreen GPS Navigator 4GB 500MHz CPUBluetooth US $40.00
|
 Bushnell BackTrack GPS Based Digital Compass Tech Gray US $24.99
|
 G2223U US STOCK In Dash 7 LCD 2Din Car GPS iPod BT USB FM DVD Player US Map US $148.00
|
 Farenheit TID 897NRB In Dash 7 Touchscreen DVD CD MP3 MP4 Bluetooth Receiver US $100.00
|
 Magellan Triton 400 GPS Receiver w TOPO deluxe map software US $10.51
|
 MOTORIZED 62 TFT LCD Windows CE60 GPS DVD SD USB FM TV VGA PC Line IN US $369.00
|
 D5103U Eonon Car GPS 7HD LCD TV Touchscreen Bluetooth PIP DVD Player forOpel US $415.00
|
 NEW Magellan Triton 400 GPS Receiver WATERPROOF BRAND NEW IN BOX GEO TRACKING US $80.00
|
 Magellan Triton 400 GPS Receiver NIB Waterproof US $159.99
|
 Brand NEW Bushnell BACKTRACK GPS Personal Locator easy to use US $44.25
|
 D5101U Eonon Touchscreen 7LCD Car Audio Bluetooth iPod GPS DVD Player for Golf US $369.00
|
 D5108ZU Eonon 62 HD LCD Car TV GPS FM Radio iPod DVD Player for Opel US Map US $415.00
|
 J High Definition 7 2 din car dvd player gps navigation for corolla ipod B23 US $399.99
|
 D5115U 8 LCD Monitor iPod TV BT In Dash Car GPS DVD Player US Map for Mazda3 US $.01
|
 G2216U Eonon Detachable2 DIN 7 Car GPS Navigation Stereo DVD Player IpodUS Map US $265.00
|
 Magellan ROADMATE 2000 Automotive GPS RECEIVER US $6.99
|
 Navigation and multimedia device with a unique touch interface easy to carry US $299.99
|
 NEW 50 5 Touch Screen GPS FM MP3 4 4GB FREE NEW MAP MTK US $14.87
|
 Magellan Triton 400 GPS Receiver US $75.00
|
 5 1DIN Windows GPS WIFI 3G INTERNET Bluetooth MP3 MP4 MP5 Touch Screen SD USB US $289.00
|
 NEW DESIGN 43 Touch Screen GPS FM MP3 4 FREE MAP 4GB HOT MTK US $5.50
|
 Magellan Triton 400 Handheld GPS Adventure PackBundle SD card Maps Case NEW US $99.95
|
 100 TOP Sales 7 inch Car GPS A5 Sirf V 600MHZ AT550 4GB FM 128M HD US $87.00
|
 Magellan Triton 400 ADVENTURE PACK Portable GPS Receiver US $119.99
|
 RightWay 400 Automotive GPS Receiver US $45.99
|
 70 HD SIRF4 GPS4GB US MAPWireless Reversing Camera US $109.95
|
 Buy Best Child Kid GPS Tracker Tracking Track Finder Device Unit System Locator US $99.00
|
 GlobalSat DG 100 SiRFstarIII GPS receiver Data Logger bundled with software US $35.00
|
 Magellan RoadMate 2000 Automotive GPS Receiver US $17.99
|
 Alpine INA W900BT 7 inch Car DVD Player USED US $330.00
|
 bulls i ETK B2000 VEHICLE DRIVE RECORDER W GPS VIDEO EVENT RECORDER CAR CAMERA US $189.00
|
 Magellan Triton 400 GPS Receiver bundle with Case Software USB Cable SDcard US $149.95
|
 Magellan Triton 400 GPS Adventure Pack bundle TOPO softwareSD cardcasebatt US $85.00
|
 GARMIN GPSMAP 76CSx GPS AUTO BOAT CYCLE NAVIGATION KITLIKENEW $927 BUNDLE US $275.00
|
 MAGELLAN ROADMATE 2000 35LCD GPS USA MAP US $24.90
|
 Magellan RoadMate 2000 GPS Receiver and Accessories US $21.35
|
 GPS Novogo G900 Full ISRAEL GPS System US $150.00
|
 GPS Head Up Display LED Speedmeter KM h and MPH speeding warning easy to install US $99.00
|
 RoyalTek RBT 1000 Bluetooth GPS mini with car charger manual BT GPS mini bundle US $39.99
|
Gps System
GPS system consists of three components- the components in the universe, control components and custom components.
Component in the universe
Component in the universe consists of GPS satellites orbiting the Earth. The number and arrangement of satellites has changed over time, and improved technical performance, as the GPS system is developed. Satellites from the BLOCK I are in operation from 1978. until 1985. and until now they are all out of function.
The original concept of Block II satellites are 24 GPS satellites that move in 6 orbital planes, equally spaced in relation to the Earth, which are tilted at an angle of 55 ° to the equatorial plane. Orbital plane is not rotated in reference to the stars. Each Space planes has a range of 4 satellites, the orbits are nearly circular (eccentricity ellipse 1 °), each properly arranged by the circle orbit, at an angle of 90 degrees. Diameter orbit is about four times larger than the diameter of the Earth and each one of the satellite orbit their range for 12 hours, so that in relation to the surface of the Earth, each satellite circle the same path every day. This number and the proper arrangement of the satellites ensure that each point on Earth is covered by at least four satellites at any time. The four satellites are needed to determine the position of a GPS receiver.
Since the satellites come out from function or for maintenance, failure or expiration of working life, the Earth orbit more satellites and currently 24 of them are active.
Control component
The control component consists of tracking satellite stations and land's antennas. Satellite tracking stations are located in Hawaii, the island of Diego Garcia, and Colorado Springs in Colorado. The role of these stations is to monitor the movement of satellite data and to send them to the main control station in Colorado Springs. These calculations are performed over land and antennas located on the other places and then the information about their exact position and time are sent to satellites. Updating is done twice a day, which made a fine setting of the system. Newer generation of satellites is able to communicate and synchronize data and the accuracy of determining the position would not be significantly impaired even when the satellites worked independently of the control components of the Earth for days.
User components
User components are the GPS receivers on the Earth. Receivers can be components included in other devices such as mobile phone, clock, and the like, or stand-alone devices. For example, a GPS receiver based on SiRF Star III chip has dimensions of only 12 x 15 mm. Second, individual devices have a display for displaying the position, velocity and / or time and may have interfaces with other devices.
Basic components of GSP receiver are antennas those are set to the frequency of the GPS satellites, crystal oscillator, which serves as a clock and a microprocessor that processes signals. Receivers are often described by how many channels they have. Each channel is followed by a satellite. Older models had four to five channels, and today mostly 12 to 20 channels.
About the Author
For More Information Please visit. http://www.gps-teknik.se/