Chengdu Ebyte Electronic Technology Co.,Ltd. E31-433T17D User Manual
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Chengdu Ebyte Electronic Technology Co.,Ltd.
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there is still risk of damage);
Try to stay away from some physical layers which is 2.4GHz TTL protocol, for example: USB3.0;
The antenna installation structure has a great influence on the performance of the module. Make sure that the
antenna is exposed, preferably vertically. When the module is installed inside the casing, a good antenna extension
cable can be used to extend the antenna to the outside of the casing;
The antenna can not be installed inside the metal case, which will greatly reduce the transmission distance.
9 FAQ
9.1 Transmission distance is not ideal
When there is a linear communication obstacle, the communication distance will be correspondingly reduced;
Temperature, humidity, and co-channel interference will lead to an increase in communication packet loss rate;
The ground absorbs and reflects radio waves, so the test results close to the ground are poor.
Seawater has a strong ability to absorb radio waves, so the seaside test results are poor.
There are metal objects near the antenna, or placed in the metal shell, the signal attenuation will be very serious;
Power register setting error, air data rate setting is too high (the higher the air data rate, the closer the d istance);
The low voltage of the power supply is lower than the recommended value at room temperature, and the lower the
voltage, the smaller the power;
The matching degree of antenna and module is poor, or the quality of the antenna itself.
9.2 Module is easy to damage
Please check the power supply to ensure that it’s within the recommended power supply, or the module will be
permanently damaged if it exceeds the maximu m value.
Check the stability of the power supply and the voltage cannot be fluctuated frequently.
Please ensure that the installation process is anti-static, and the high-frequency components are electrostatically
sensitive.
Please ensure that the humidity during installation and use is not too high because some components are humidit y
sensitive devices.
If there is no special demand, it is not recommended to use it at too high or too low t emperature.
9.3 Bit error rate is too high
There are co-channel signal interference nearby, away from interference sources or modify frequency and channel
to avoid interference;
The undesirable power supply may also cause messy code, and ensure the reliability of the power supply.
The quality of extension line and feeder are poor or too long, which also cause high bit error rate;
