Reflow Graph; Faq; The Communication Distance Is Too Close; The Module Can Be Damaged Easily - Ebyte E19 Series User Manual

SX127X RF Module

5.2 Reflow Graph

6. FAQ

6.1 The communication distance is too close

When there's straight
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Temperature, humidity and same frequency interference will increase the rate of communication packet loss.
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Ground absorption, reflected radio waves, and closing to ground will lead to poor test result.
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Sea water has a strong ability to absorb radio waves, so test near the sea is not recommended .
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If antennas surrounded by metal items or placed in metal shell, the signal will be weakened badly.
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Power register is set wrongly or air data rate too high.(The higher the air data rate, the closer the distance.
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In room temperature, the power voltage will be less than 2.5V. The lower the the power voltage, the smaller the power.
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The antenna is unmatched to the module or the quality of antenna.
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6.2 The module can be damaged easily

Please check the power supply, which should be 1.8v-3.8v. If the value exceeds that, the module will be damaged.
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Please check the stability of power supply. The voltage cannot be in fluctuations frequently.
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Please ensure all the installation operations are anti-static.
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Please ensure the humidity in the procedure of installation and operation should not be too high because some electrical parts are
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humidity sensitive device.
Please do not use it in a too high or too low temperature environment if there's no special requirement.
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Communication barrier, the communication distance will be reduced accordingly.
User Manual of E19 Series Modules
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