TRM-868-NT

RF Transceiver Modules are electronic devices that are used to detect, transmit, and receive radio waves. As the name implies, they can both receive and transmit radio waves. The TRM-868-NT is a type of transceiver module that supports LoRa communication protocols. It is a small form factor module, measuring just 40 x 23mm. It has two operating modes: a transparent operation mode and a transparent frequency hopping duty cycle mode. The module has a frequency range of 868 - 874MHz and a maximum output power of about 18.5dBm. Its RF channel bandwidth is 500kHz.

Application Field

One of the main applications of TRM-868-NT is in remote control data communication. It can be used to form a robust communication link between two distant locations. It has a long-range capacity and can be used to transmit data up to tens of kilometers. Moreover, its low power consumption and the ability to connect to long-range devices make it a great choice for applications such as IoT. Furthermore, it can be used in building automation, access control, logistics tracking, smart grids, and automotive electronics, among others.

Working Principle

The TRM-868-NT operates in either a transparent operation mode or a transparent frequency hopping duty cycle mode. In the transparent mode, the transmitter continuously transmits data to the receiver, while in the duty cycle mode, the module continuously switches frequencies and sends data at a predefined interval. In both the modes, the received data is encoded and modulated into a digital signal and sent over the air. The receiver then demodulates and decodes the signal and forwards the data to the intended destination.

The module also has an integrated automatic repeat request (ARQ) function. In this mode, the transmitter firstly sends data to the receiver and then waits for confirmation from the receiver. If the receiver does not receive the data, it sends a request to the transmitter to re-send the data. This helps ensure a reliable and secure data transfer.

Overall, the TRM-868-NT is a highly capable transceiver module that can be used for different application scenarios. Due to its low-power consumption, small form factor, and long-range capability, it is a great choice for remote control applications as well as other IoT applications.