Chapter 11 Faq; The Transmission Distance Is Not Ideal; Module Is Easily Damaged; Bit Error Rate Too High - Ebyte E22-230T22D User Manual

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Chapter 11 FAQ

11.1 The transmission distance is not ideal


When there is a linear communication barrier, the communication distance will be attenuated accordingly;

Temperature, humidity, co-channel interference, which can lead to increased communication packet loss;

The ground absorbs and reflects radio waves and is less effective for testing close to the ground;

Seawater has a very strong ability to absorb radio waves, so the seaside test is poor;
 Antenna near a metal object, or placed in a metal case, the signal attenuation will be very serious;
 Wrong power register setting, too high air rate setting (the higher the air rate, the closer the distance)；
 Power supply low voltage at room temperature is lower than the recommended value, the lower the voltage,
the smaller the power generation；
 Use antenna and module match the degree of poor or antenna itself quality problems.
11.2

Module is easily damaged


Please check the power supply to ensure that it is within the recommended power supply voltage. If it 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；

Please ensure anti-static operation during installation and use, the electrostatic sensitivity of
high-frequency components；

Please ensure that the humidity during installation and use should not be too high. Some components are
humidity-sensitive components.；
 If there is no special requirement, it is not recommended to use it at too high or too low temperature.

11.3 Bit error rate too high

 There is co-frequency signal interference nearby, stay away from the interference source or modify the
frequency and channel to avoid interference；

If the power supply is not ideal, it may also cause garbled characters. Be sure to ensure the reliability
of the power supply.；

Poor quality or too long extension cables and feeders will also cause high bit error rates.
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E22-230T22D User Manual