Chengdu Ebyte Electronic Technology Co., Ltd.
E51-470NW16S USER Manual
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Chengdu Ebyte Electronic Technology Co., Ltd.
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5.2 J-Link program download/debugging cable diagram
Chapter Ⅵ FAQ
6.1 The transmission distance is not ideal.
When there is a linear communication barrier, the communication distance will be attenuated accordingly;
Temperature, humidity, same frequency interference, will lead to increased communication packet loss rate;
The ground absorbs and reflects radio waves, and the test effect near the ground is poor;
Sea water has a strong ability to absorb radio waves, so the seaside test results are poor;
If there are metal objects near the antenna or placed in a metal shell, the signal attenuation will be very
serious;
Power register setting error, air speed setting is too high (the higher the air speed, the closer the distance);
The power supply low voltage at room temperature is lower than the recommended value, the lower the voltage,
the smaller the power;
The matching degree between the antenna and the module is poor or the quality of the antenna itself is wrong.
6.2 Module easy to damage
Check the power supply to ensure that the power supply voltage is within the recommended value. If the power
supply voltage exceeds the maximum value, the module will be permanently damaged.
Please check the stability of the power supply, the voltage should not fluctuate greatly and frequently;
Ensure that the installation and use process are ESD preventive. The high-frequency devices are electrostatic
sensitive.
Ensure that the humidity is not too high during installation and use. Some components are humidity sensitive
