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How accurate is Arduino GPS?
Accuracy: Featuring Horizontal positioning accuracy of 2.5m, High positioning accuracy of 3.5m, speed accuracy of 0.1m/s, and a time transfer accuracy of 30ns, the Grove -GPS (Air530) is able to position quickly and accurately even under the condition of a bad signal.
What frequencies does GPS use?
All GPS satellites broadcast on at least two carrier frequencies: L1, at 1575.42 MHz, and L2, at 1227.6 MHz (newer satellites also broadcast on L5 at 1176 MHz).
Where to place a GPS antenna on a car?
Installing a GPS antenna on a car or other vehicle needs to take into consideration the metal roof of the vehicle as well as any curvature or metal structures that could cause reflection of the signal. A GPS antenna should be positioned in the center of the roof as high as possible, away from metal structures like a roof rack.
What should I do to protect my GPS antenna?
GPS Source always recommends some kind of surge suppressor and a grounding kit when installing an antenna. Protect any communications and power lines at building entry points. If you use other antennas or aerials, such as a radio modem that distributes real-time correction messages, consider protecting those antennas as well.
When does a GPS antenna need to be active?
Active GPS antennas have additional power requirements which will be drawn from the receiving device’s batteries. To save power the LNA should only be active when the antenna is in use. These simple antennas do not have an LNA or alternate means of signal amplification and therefore do not require supplementary power.
Why is a sound GPS antenna so important?
Sound GPS antenna design is vital because the GPS signal from the celestial constellation of satellites is not particularly strong. The antenna, therefore, plays a unique role in the final performance of a GPS enabled device. A GPS antenna is comprised of: