Faq; Communication Range Is Too Short; Module Is Easy To Damage; Ber(Bit Error Rate) Is High - Ebyte E28-2G4T27SX User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.

9. FAQ

9.1 Communication range is too short

The communication distance will be affected when obstacle exists.
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Data lose rate will be affected by temperature, humidity and co-channel interference.
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The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground.
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Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea.
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The signal will be affected when the antenna is near metal object or put in a metal case.
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Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the distance).
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The power supply low voltage under room temperature is lower than 2.5V, the lower the voltage, the lower the
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transmitting power.
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Due to antenna quality or poor matching between antenna and module.
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9.2 Module is easy to damage

Please check the power supply source, ensure it is 2.0V~3.6V, voltage higher than 3.6V will damage the module.
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Please check the stability of power source, the voltage cannot fluctuate too much.
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Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic
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susceptibility.
Please ensure the humidity is within limited range, some parts are sensitive to humidity.
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9.3 BER(Bit Error Rate) is high

There are co-channel signal interference nearby, please be away from interference sources or modify frequency and channel
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to avoid interference;
Poor power supply may cause messy code. Make sure that the power supply is reliable.
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The extension line and feeder quality are poor or too long, so the bit error rate is high
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E28-2G4T27SX User Manual
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