What are the main parts of the receiver of the car GPS

　　1. GPS receiver antenna

　　The GPS receiver antenna consists of two parts: antenna unit and front amplifier. The role of antenna is to convert the weak electromagnetic wave energy of the GPS satellite signal into the corresponding current, and amplify the received GPS signal through the front amplifier.

　　2. GPS receiver host

　　The host host is composed of inverter, signal channel, microprocessor, memory and display. The main task of the inverter is to turn the receiving LD radio frequency signal into a low -frequency signal. The signal channel is a combination of software and hardware. It is the core part of the receiver. Its role is to search, traction and track satellites. The radio electrical signal is expanded and demoded into a radio electrical text. Pulle frequently measured.

　　3. GPS receiving machine power supply

　　There are two types of GPS receiving electromechanical sources. One is an internal power supply. Generally, lithium batteries are used, mainly power supply to RAM memory; the other is an external power supply, which is commonly used for rechargeable 12V, Nickel Cadmium battery packs.

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