Faq; Communication Range Is Too Short; Module Is Easy To Damage; Ber(Bit Error Rate) Is High - Ebyte E22-230TXXS User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd

11 FAQ

11.1 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 transmitting

power.
Due to antenna quality or poor matching between antenna and module.
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11.2 Module is easy to damage

Please check the power supply source, ensure it is in right range, voltage higher than maximum value 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 susceptibility.
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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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11.3 BER(Bit Error Rate) is high

There are co-channel signal interference nearby, please be away from interference sources or modify frequency and
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channel 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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12 Production guidance

12.1 Reflow soldering temperature

Solder Paste
Preheat Temperature min （Tsmin）
Preheat temperature max (Tsmax)
Preheat Time (Tsmin to Tsmax)(ts)
Average ramp-up rate(Tsmax to Tp)
Liquidous Temperature (TL)
Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd
Profile Feature Sn-Pb Assembly
Sn63/Pb37
100℃
150℃
60-120 sec
3℃/second max
183℃
E22-230TXXS User Manual
Pb-Free Assembly
Sn96.5/Ag3/Cu0.5
150℃
200℃
60-120 sec
3℃/second max
217℃
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