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analog, power supply wiring) will also greatly affect the performance of the module, according to the strength of the
interference, it is recommended to stay away from the module, if the situation allows for appropriate isolation and
shielding；
Try to stay away from TTL protocols with some physical layers of 2.4GHz, such as USB3.0；
The antenna installation structure has a great impact on the module performance. It is necessary to ensure that the
antenna is exposed, preferably vertically upward. When the module is installed inside the housing, the antenna can be
extended to the outside of the housing using a high-quality antenna extension cable；
The antenna must not be installed in the metal shell, which will greatly reduce the transmission distance.
Chapter 10 FAQ
10.1 Transmission distance is not ideal
When there is a linear communication barrier, the communication distance will be attenuated accordingly；
Temperature, humidity, and the same frequency interference will cause the communication packet loss rate to
increase；
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 effect is 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 too high (the higher the air speed, the closer the distance)；
At room temperature, the power supply low voltage is lower than the recommended value, and 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.
10.2 Module easy to damage
Check the power supply to ensure that the power supply voltage is within the recommended value. If it exceeds the
maximum value, the module may be permanently damaged；
Check the stability of the power supply and ensure that the voltage does not fluctuate greatly and frequently；
Ensure that the installation and use of high-frequency devices are ESD sensitive；
Ensure that the humidity is not too high during installation and use. Some components are humidity sensitive；
If there is no special need, it is not recommended to use at too high or too low temperatures.
10.3 The bit error rate is too high
If there is interference from the same frequency signal nearby, stay away from the interference source or
modify the frequency and channel to avoid interference；
The power supply is not ideal may also cause garbled code, must ensure the reliability of the power supply；
Extension wire, feeder quality is poor or too long, will also cause high bit error rate。
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E104-BT53C3 Manual User
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