Ebyte E34-2G4D20D, User Manual

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Chengdu Ebyte Electronic Technology Co., Ltd. E34-2G4D20D User manual
Copyright ©2012–2018, Chengdu Ebyte Electronic Technology Co.,Ltd.
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9. FAQ
9.1 Communication range is too short
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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.

Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea.

The signal will be affected when the antenna is near metal object or put in a metal case.

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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When the power supply at room temperature is lower than the recommended low voltage, the lower the voltage is,
the lower the transmitting power is.

Due to antenna quality or poor matching between antenna and module.
9.2 Module is easy to damage

Please check the power supply and ensure it is within the recommended range. Voltage higher than the peak will
lead to a permanent damage to the module.

Please check the stability of power supply and ensure the voltage not to fluctuate too much.

Please make sure anti-static measures are taken when installing and using, high frequency devices have electrostatic
susceptibility.

Please ensure the humidity is within limited range for some parts are sensitive to humidity.

Please avoid using modules under too high or too low temperature.
9.3 High bit error rate

There are co-channel signal interference nearby, keep away from interference sources or modify frequency, channel
to avoid interference.
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Unsatisfactory power supply may also cause garbled characters, and ensure the reliability of the power supply.
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If the extension cable or feeder is of poor quality or too long, the bit error rate will be high.