Faq; Communication Range Is Too Short; Module Is Easy To Damage; Poor Sound Quality - Ebyte E200-900A17S 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 transmitting
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power.
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 in right range, voltage higher than max 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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9.3 Poor sound quality

If the power supply ripple is too large, be sure to reduce the power supply ripple, add decoupling capacitors, and add EMC filter
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circuits;
The audio input wiring is unreasonable, and it needs to be deferentially designed and as close as possible to the module pins;
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The audio input wiring is unreasonable, and it needs to be deferentially designed and as close as possible to the module pins;
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There may be co-frequency signal interference nearby, modify the module Channel to use;
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E200-900A17S User Manual
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