160mW High-Power Wireless Data Transmission Radio: Anti-Interference, High Sensitivity, and Long-Distance Communication

Wireless data transmission modules are at the heart of data radio stations. By leveraging advanced Digital Signal Processing (DSP) technology and radio communication techniques, these modules have driven significant advancements in data transmission, enhancing both speed and efficiency while ensuring stability in complex environments.

Wireless data radios, like fiber optics and microwaves, serve as essential communication mediums with specific applications. They provide reliable, real-time data transmission within dedicated networks under certain conditions. These radios offer advantages such as low cost, easy installation and maintenance, robust diffraction capability, flexible networking structures, and extensive coverage. They are particularly suitable for applications in areas with complex geographical environments, such as remote monitoring, and communication across dispersed regions.

The main performance indicators that affect wireless communication distance are:Output power,Receive sensitivity,Anti-interference ability,Transmit/receive antenna type and gain By optimizing these indicators, the communication distance of a system can be extended.

Key Performance Factors for Communication Distance

Communication distance is influenced by factors such as transmission power, receive sensitivity, and propagation losses, as well as antenna gain, under fixed frequency conditions. While environmental factors like wave absorption, multipath interference, and propagation losses are unavoidable, transmission power, receive sensitivity, and antenna characteristics can be optimized for better performance.

High-Power LoRa Data Radio Overview

The LoRa611II-DZ is a high-power data radio launched by  NiceRF, offering 160mW output and using LoRa's spread spectrum modulation and frequency hopping technology. The radio provides TTL/RS232/RS485 interfaces and operates in the 433/470/868/915 MHz frequency range. With a 5 km range in open spaces, the LoRa spread spectrum technology further extends the communication distance while offering strong anti-interference capability. The radio also includes software-based Forward Error Correction (FEC), which enhances the encoding efficiency and correction ability, improving data reliability and transmission range under interference conditions. Additionally, the radio features data encryption for secure wireless transmission, with robust encryption algorithms ensuring the security of the transmitted data.

Key Advantages for Long-Distance Transmission:

Enhanced Anti-Interference with LoRa Spread Spectrum Technology
The industrial-grade LoRa spread spectrum modulation technology significantly improves the radio’s anti-interference ability, resulting in greater communication distance and stability. Traditional digital communication usually employs minimal bandwidth that matches the data rate, as bandwidth is limited and shared among multiple users. In contrast, spread spectrum communication uses a much larger bandwidth to distribute the same energy across a wider frequency spectrum. While part of the spread spectrum’s bandwidth may overlap with conventional signals, these signals have minimal impact on the spread spectrum signal due to their narrower bandwidth. This characteristic is a key factor enabling long-range communication and strong anti-interference capabilities.

High Transmit Power
The data radio includes a power amplifier (PA) that increases the transmission power, reaching up to 160mW. The greater the transmit power, the larger the communication distance. While theoretically, transmission power could be increased without limit, in practice, output power is constrained by cost and technical standards.

High Receive Sensitivity
The radio’s high receive sensitivity ensures it can maintain stable communication even in weak signal environments, further enhancing both communication distance and reliability. Receive sensitivity refers to the minimum signal power at which the receiver can correctly capture the useful signal. The higher the receive sensitivity, the further the communication distance, as the receiver can detect even weaker signals more effectively.

By integrating high output power, exceptional sensitivity, and advanced anti-interference features, the LoRa611II-DZ data radio delivers long-range, reliable communication in challenging environments, making it an ideal solution for remote monitoring, long-distance data transmission, and other applications requiring robust wireless connectivity.

Quick Start Guide for High-Power LoRa Data Transmission Radio Configuration

In the normal working state, pulling down the SET pin (or shorting it to ground) can switch the module to parameter configuration mode. When the user is connected to a USB converter board, simply short the jumper cap on it to enter configuration mode. In this mode, the module's red and blue transmission and reception indicator lights will remain on continuously, as shown in the following figure:

In configuration mode, users can configure the module's parameters through PC software. After opening the PC software, click to open the corresponding COM port (which can be checked in Device Manager), and the PC will read the parameters of the connected module and display the corresponding model and version information in the window. At the same time, the message 'Device Found!' will be shown in the status bar at the bottom. When the device is unplugged or there is no response, the status bar at the bottom will display the message 'Device Not Found!', and the product information box above will turn gray and become inactive. The PC interface when the module is successfully connected is as shown in the following figure.

After the module is properly connected, it enters a state of 'configurable parameters'. Users can modify the module's related parameters through the PC interface, such as: operating frequency band, transmission and reception channels, air communication rate, transmission power; serial port baud rate, data bits, stop bits, parity bits; NET ID, NODE ID, key, etc. Then, by clicking the【SET】button, the module can be configured. After each successful parameter change, a 'OK' message will be sent back. The PC software should display a success prompt dialog box upon receiving the OK response; otherwise, it will display 'ERROR', indicating an operation error in a dialog box. If there is no response within 0.5 seconds after the PC sends a command, a communication error is assumed to have occurred, and an operation error dialog box should be displayed. The parameters set in this manner are saved even after power is lost. When the user clicks the【READ】button, the module will return all the current parameter information of the module. Clicking the 【DEFAULT】button, will reset the module's parameters to factory default values.