GPS antenna is a importance part of GPS tracking gadget. It's a device that boost the reception signal to GPS unit .Usually come with two categories of physical, it's embedded with device or it's separate with device, call external antenna. A build in GPS antenna usually quite small and located inside of the device rather than external GPS antenna it's mounted separately on the vehicle and commonly more sensitive receiving signal that allow it to communicate with satellites, and connected to the GPS unit device by a cable .
Size of the external antenna depending on type of transportation it's will be embend, may be small and may it's huge GPS antenna, example taxi car ideal to use small antenna like the top left picture and the ship will be use the huge antenna. The reason is that more big external antenna, it's more efficient signal receiving from satellite that made a location of transport is more accurate. Some model of GPS antenna have amplifier to increase the transducer capability. The reason build sophisticated GPS antenna is allow user to control the radiation pattern by controlled by focusing the radiation energy.
GPS antenna is a importance part of GPS tracking gadget. It's a device that boost the reception signal to GPS unit .Usually come with two categories of physical, it's embedded with device or it's separate with device, call external antenna. A build in GPS antenna usually quite small and located inside of the device rather than external GPS antenna it's mounted separately on the vehicle and commonly more sensitive receiving signal that allow it to communicate with satellites, and connected to the GPS unit device by a cable . 
Size of the external antenna depending on type of transportation it's will be embend, may be small and may it's huge GPS antenna, example taxi car ideal to use small antenna like the top left picture and the ship will be use the huge antenna. The reason is that more big external antenna, it's more efficient signal receiving from satellite that made a location of transport is more accurate. Some model of GPS antenna have amplifier to increase the transducer capability. The reason build sophisticated GPS antenna is allow user to control the radiation pattern by controlled by focusing the radiation energy.
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