Chengdu Ebyte Electronic Technology Co., Ltd.
E103-W05B User Manual
Copyright ©2012–2018
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Chengdu Ebyte Electronic Technology Co., Ltd
Chapter 6 Frequently Asked Questions
6.1 The transmission distance is not ideal
When there is a straight line communication obstacle, the communication distance will be attenuated accordingly;
Temperature, humidity, and co-frequency interference will increase the communication packet loss rate;
The ground absorbs and reflects radio waves, and the test effect is poor near the ground;
Sea water has a strong ability to absorb radio waves, so the seaside test effect is poor;
If there are metal objects near the antenna or placed in a metal shell, the signal attenuation will be very serious;
The low voltage of the power supply at room temperature is lower than the recommended value, the lower the voltage,
the lower the power output;
The poor matching degree of the antenna and the module or the quality of the antenna itself
。
6.2 Module is easy to damage
Please check the power supply to ensure that it is within the recommended power supply voltage. If it exceeds the
maximum value, it will cause permanent damage to the module;
Please check the stability of the power supply, and the voltage cannot fluctuate significantly and frequently;
Please ensure that the installation and use process is anti-static, and high-frequency components are electrostatically
sensitive;
Please ensure that the humidity should not be too high during installation and use, and some components are
humidity sensitive devices;
If there is no special requirement, it is not recommended to use at too high or too low temperature.
6.3 Matters needing attention
6.3.1 The relationship between AP&STA&Server&Client
In the above two network access examples in Sections 6.2 and 6.3, it is not only in AP mode that TCP Server can be
established. Similarly, it is not only when the module is in STA mode that TCP Client can be established. AP and
STA are just modules that access the network. A working mode of the TCP Server, TCP Client and UDP can create
network links in any mode of the module.
6.3.2 Note for transparent transmission
The transparent transmission mode can only be used when the module is working in TCP Client and UDP. TCP
Server cannot enter the transparent transmission mode. After entering the power-on transparent transmission, you
