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 Longgang,ShenZhen, CN

About HD1 GPS

About HD1 GPS

Q1: Why does GPS have to be positioned outside?

A: The satellite signal is not received indoors, and the obstacle signal does not receive the star signal.

Q2: Several satellites receive GPS to locate the location.

A: At least 4 or so

Q3: What is the accuracy of HD1 GPS?

A: The accuracy is about 10 meters.