Common Problem; Transmission Distance Is Not Ideal; Module Is Easy To Damage; The Error Rate Is Too High - Ebyte E280-2G4T12S User Manual

Chengdu Ebyte Electronic Technology Co.,Ltd.
damaged risk);
Try away from some of the physical layer of 2.4GHz TTL protocol, such as USB3.0;

The antenna mounting structure has a great influence on the performance of the module, and it is important to ensure that the

antenna is exposed, it is best to vertical vertically. When the module is mounted inside the casing, high quality antenna can
extend the antenna to the outside of the casing;
The antenna must not be installed inside the metal shell, which will cause the transmission distance to weaken.


9 Common problem

9.1 Transmission distance is not ideal

When there is a linear communication barrier, the communication distance will attenuate;

Temperature, humidity, same frequency interference, can result in increased communication packet loss rates;

The ground absorption, reflecting radio waves, close to the ground test effect;

Seawater has a strong absorption of radio wave, so the seaside test effect is poor;

There is a metal object near the antenna, or in a metal shell, the signal attenuation will be very serious;

Power register setting error, the air rate is too high (the higher the air rate, the closer distance);

At room temperature, the power supply is lower than the recommended value, the lower the voltage, the smaller the

power is;
Using antenna and module matching degree or antenna itself quality problem.


9.2 Module is easy to damage

Check the power supply, make sure there is a need for the power supply voltage, such as exceeding the maximum,

causing the module permanent damage;
Check the power stability, the voltage cannot fluctuate significantly;

Make sure the installation process is an anti-static operation, the high frequency device is electrostatically

sensitivity;
Make sure the installation process is not too high, some components are humidity sensitive devices;

If there is no special demand, it is not recommended to use it too high, too low temperature.


9.3 The error rate is too high

There are similar signal interference nearby, away from interference or modified frequencies, and channel

avoidance interference;
Power is not ideal or may cause garbled, and be sure to ensure the reliability of the power supply;

Extending the line, the feeder is poor or too long, and the error rate is also high.

Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd.
E280-2G4T12S User Manual
17