In the wireless module, the transmit power is an important technical indicator for testing the wireless module. The official concept is the energy of the electromagnetic wave, and the unit is W, dBm. The higher the transmission power, the farther the transmission distance is, and the greater the power consumption. Just as we speak, the bigger the voice, the louder the voice can be heard by the farther people, and the more energy is consumed. On the contrary, the smaller the trick, the closer the person who can hear the sound, and the less energy we consume.
Why does the wireless module increase the transmit power? It is nothing more than the transmission distance does not reach the expected goal. At this time, we do not have to solve this problem by increasing the transmit power. The simplest and most effective way is to match an antenna with better gain effect. A good gain antenna can help the wireless module to transmit very far.
Closer to home, how does the wireless module increase the transmit power?
1. Register sets a large power value
The most direct and effective way is to re-set a larger power value in the register to increase the transmit power for our purposes.
2. Additional power amplifier parts
When the transmit power does not meet your own requirements, the addition of power amplifier components is generally our easiest way.
Here we recommend a high-power wireless module, SV6500 high-power ultra-long-range wireless digital radio, which uses the high-performance Silicon Lab Si4432 RF chip. The extremely low receive sensitivity, combined with the industry-leading 5 W of large output power, guarantees extended range and improved link performance. The wireless data transmission module provides multi-band multi-channel and network ID to reduce interference during transmission to improve transmission performance, and the transmission distance can reach 8000 meters @1.2K rate. The working frequency band is 433/470MHz, the communication channel is up to 40, the serial port parameter setting is diversified, the working voltage range is 9~30V, TTL/RS232/RS485 level interface.