Faq; The Transmission Distance Is Not Ideal; The Module Is Easily Damaged; The Bit Error Rate Is Too High - Ebyte E22-230T30/33E Manual

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When the module is installed inside the case, a high-quality antenna extension cable can be used to extend the
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antenna to the outside of the case;
The antenna must not be installed inside the metal shell, which will greatly weaken the transmission distance.
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11 FAQ

11.1 The transmission distance is not ideal

When there is a straight-line communication obstacle, the communication distance will be attenuated accordingly;
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Humidity, and co-frequency interference will lead to an increase in communication packet loss rate;
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The ground absorbs and reflects radio waves, and the test effect is poor when it is close to the ground;
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Seawater has a strong ability to absorb radio waves, so the seaside test effect is poor;
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If there is a metal object near the antenna, or it is placed in a metal case, the signal attenuation will be very serious;
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The power register is set incorrectly, and the air speed is set too high (the higher the air speed, the closer the
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distance);
The low voltage of the power supply at room temperature is lower than the recommended value, the lower the
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voltage, the lower the power output;
The matching degree between the antenna and the module is poor or the quality of the antenna itself is problematic.
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11.2 The module is easily damaged

Please check the power supply to ensure that it is between the recommended power supply voltage, if it exceeds the
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maximum value, it will cause permanent damage to the module;
Please check the stability of the power supply, the voltage cannot fluctuate greatly and frequently;
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Please ensure anti-static operation during installation and use, and high-frequency devices are electrostatically
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sensitive;
Please ensure that the humidity during installation and use should not be too high, some components are humidity
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sensitive devices;
If there is no special requirement, it is not recommended to use it at too high or too low temperature.
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11.3 The bit error rate is too high

There is co-channel signal interference nearby, stay away from the source of interference or modify the frequency
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and channel to avoid interference;
power supply may also cause garbled characters, so ensure the reliability of the power supply;
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cables and feeders are of poor quality or are too long, which will also cause a high bit error rate.
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