Working principle of sim800c module

GSM signal is received and processed by processor, modulated by RF chip and sent out.

1 and SIM800C modules receive GSM signals through antennas and convert them into digital signals.

2. The digital signal is processed by the processor inside the SIM800C for decoding, encoding, compression and other operations.

3. The processed digital signal is modulated by the RF chip of SIM800C and converted into GSM signal.

4. The modulated GSM signal is sent through the antenna to communicate with other devices. SIM800C is a four-band GSM/GPRS module, which is encapsulated in castle hole.