Faq; Communication Range Is Too Short; Module Is Easy To Damage; Ber(Bit Error Rate) Is High - Ebyte E01C-ML01SP4 User Manual

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6 FAQ

6.1 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
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ground.;
Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the
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sea;
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
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distance);
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;
Due to antenna quality or poor matching between antenna and module.
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6.2 Module is easy to damage

Please check the power supply to ensure that it is between the recommended power supply voltage. If the
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maximum value is exceeded, the module will be permanently damaged;
Please check the stability of power source, the voltage cannot fluctuate too much;
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Please make sure anti-static measure are taken when installing and using, high frequency devices have
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electrostatic susceptibility;
Please ensure the humidity is within limited range, some parts are sensitive to humidity;
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Please avoid using modules under too high or too low temperature.
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6.3 BER(Bit Error Rate) is high

There are co-channel signal interference nearby, please be away from interference sources or modify frequency
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and channel to avoid interference;
The clock waveform on the SPI is not standard. Check whether there is interference on the SPI line. The SPI bus
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line should not be too long;
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 hig.
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E01C-ML01SP4 User Manual
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