Frequently Asked Questions; Transmission Distance Is Short; Modules Are Easily Damaged; Bit Error Rate Is Too High - Ebyte E48-433/900T20S User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.

11. Frequently Asked Questions

11.1 Transmission distance is short

When there are straight-line communication obstacles, the communication distance will be correspondingly attenuated ;
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Temperature, humidity, and co-channel interference will cause the communication packet loss rate to increase ;
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The ground absorbs and reflects radio waves, and the test effect is poor when close to the ground ;
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Seawater has a strong ability to absorb radio waves, so the seaside test results are poor ;
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If there are metal objects near the antenna, or if it is placed in a metal case, the signal attenuation will be very serious ;
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The power register setting is wrong and the air rate is set too high (the higher the air rate, the closer the distance) ;
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The low voltage of the power supply at room temperature is lower than the recommended value. The lower the voltage, the
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smaller the power generated ;
There is a poor match between the antenna and the module or there is a problem with the quality of the antenna itself.
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11.2 Modules are easily damaged

Please check the power supply to ensure that it is within the recommended power supply voltage. If it exceeds the
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maximum value, it will cause permanent damage to the module.
Please check the stability of the power supply. The voltage cannot fluctuate greatly and frequently.
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Please ensure anti-static operation during installation and use, as high-frequency devices are sensitive to static electricity.
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Please ensure that the humidity during installation and use should not be too high, as some components are humidity
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sensitive.
If there are no special needs, it is not recommended to use it at a too high or too low temperature.
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11.3 Bit error rate is too high

If there is co-channel signal interference nearby, stay away from the interference source or modify the frequency or channel
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to avoid interference;
Unsatisfactory power supply may also cause garbled code, so be sure to ensure the reliability of the power supply;
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Poor quality or too long extension cords and feeders will also cause a high bit error rate;
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