Test - lowercase jpg
Kaixin micro test
Test probe P100-M3
Q1 acts as a crystal oscillator. If the test crystal is running, the RF signal is rectified by D1 and D2, then Q2 and LED 2 are turned on. LED1 is a power indicator.
- The Description of GPS Antenna
- GPS is a terminal for positioning or navigation by receiving satellite signals. An antenna is needed to receive the signal. GPS satellite signals are divided into L1 and L2 with frequencies of 1575.42MHz and 1228MHz respectively. L1 is an open civil signal and the signal is circularly polarized. The signal strength is about -166dBW, which is a relatively weak signal. These characteristics decide to prepare special antennas for the reception of GPS signals
- The use of GPS in cars will become more and more common. But the automobile shell, especially the automobile explosion-proof film produces the serious obstacle to the GPS signal. An external antenna with a magnet that attaches to the roof of the car is necessary for a GPS in the car.
- The Picture of GPS Antenna
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Yetnorson Antenna Co., Ltd. , https://www.yetnorson.com