Faq; Communication Range Is Too Short; Module Is Easy To Damage; Ber(Bit Error Rate) Is High - Ebyte E72-2G4M23S1A User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.

5 FAQ

5.1 Communication range is too short

 The communication distance will be affected when obstacle exists;
 Data lose rate will be affected by temperature, humidity and co -channel interference;
 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);
 The power supply low voltage under room temperature is lower than 2.5V , the lower the v oltage, the lower the
transmitting power;
 Due to antenna quality or poor matching between antenna and module.

5.2 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;
 Please check the stability of power source, the voltage cannot fluctuate too much;
 Please make sure antistatic measure are taken when installing and using, high frequency devices have electrosta tic
susceptibility;
 Please ensure the humidity is within limited range, some parts are sensitive to humidity;
 Please avoid using modules under too high or too low temperature.

5.3 BER(Bit Error Rate) is high

 There are co-channel signal interference nearby, please be away from interference sources or modify
frequency and channel to avoid interference;
 Poor power supply may cause messy code. Make sure that the power supply is reliable;
 The extension line and feeder quality are poor or too long, so the bit error rate is high.
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E72-2G4M23S1A User Manual
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