Specifications
Chapter 5 Trouble Shooting
5.1 Transmission distance is not ideal
1. When there is a linear communication obstacle, the communication distance will be reduced
correspondingly;
2. Temperature, humidity, and co-channel interference will increase communication packet
loss rate;
3. The ground absorbs and reflects radio waves, and the test results near the ground are poor;
4. Sea water has a strong ability to absorb radio waves, so the test results at the seaside are
poor;
5. There is a metal object near the module antenna, or it is placed in a metal shell, the signal
attenuation will be very serious;
6. The power register is set incorrectly and the air speed is set too high (the higher the air
speed, the closer the distance);
7. The low voltage of the power supply at room temperature is lower than the recommended
value, the lower the voltage, the smaller the power output;
8. The use of the antenna and the module is poorly matched or the quality of the antenna itself
is a problem.
5.2 Module is easily damaged
1. Please check the power supply to ensure that it is under the recommended power supply
voltage, if the maximum value is exceeded, the module will be permanently damaged;
2. Please check the stability of the power supply, the voltage cannot fluctuate greatly and
frequently;
3. Please ensure the anti-static operation during installation and use, and the electrostatic
sensitivity of high-frequency devices;
4. Please ensure that the humidity during installation and use should not be too high, and
some components are humidity sensitive devices;
5. If there is no special requirement, it is not recommended to use it at too high or too low
temperature.
5.3 3 Bit error rate is too high
1. Co-channel signal interference nearby, stay away from the interference source or modify
the frequency and channel to avoid interference;
2. Unsatisfactory power supply may also cause garbled characters. Be sure to ensure the
reliability of the power supply;
3. Poor quality or long extension cables or feeders can also cause high bit error rates.
Chapter 6 Solder Instruction