New Product Launch | SA818Pro Walkie-Talkie Module Supports Wireless Data Transmission

SA818Pro from G-NiceRF is an enhanced version of the SA818S. It integrates a high-speed microcontroller, a high-performance RF transceiver chip, and a power amplifier. With independent transmit and receive frequencies, the module newly supports lightweight data transmission while maintaining voice communication, enabling both voice intercom and data transfer in one module.

Featuring a compact size and high cost performance, SA818Pro can be easily integrated into various terminal devices.

SA818Pro is fully compatible with the software and hardware interfaces of SA818S. Within the same package size, the maximum output power reaches up to 32.5 dBm, further improved compared to SA818S.

Across the 400–480 MHz full band, the power variation is less than 1 dB, ensuring stable signal transmission and meeting medium- to long-distance communication requirements.

Typical application scenarios include:

• Compact walkie-talkies
• Wireless intercom systems
• Building and community security systems
• Outdoor sports equipment
• Audio monitoring systems

It is well suited for professional communication terminal integration.

International Certifications for Global Deployment

SA818Pro is available with CE and FCC certified versions, meeting market access requirements in different regions worldwide.

The module is manufactured and tested using lead-free processes and complies with RoHS and REACH environmental standards.

Independent TX/RX Frequencies + Data Transmission Support

Independent transmit and receive frequency configuration

Supports both UHF (400–480 MHz) and VHF (134–174 MHz) bands. Transmit and receive frequencies can be set independently. Custom frequency ranges such as 200–260 MHz and 470–520 MHz are also available to meet complex frequency planning requirements.

Voice + data dual-mode transmission

In addition to traditional voice communication, SA818Pro supports lightweight data transmission for device status, location information, control commands, and other digital data. A single module enables both voice communication and data monitoring.

Multi-Level Sub-Audio + TCXO for Stable Communication

38-level CTCSS + 166-level CDCSS sub-audio

Supports both analog and digital sub-audio encoding. Combined with 8-level adjustable squelch, it effectively suppresses background noise and co-channel interference, improving voice clarity.

0.5 ppm high-stability TCXO oscillator

Equipped with an industrial-grade temperature-compensated crystal oscillator, ensuring high frequency accuracy and stable performance over a wide temperature range of –30°C to +70°C, minimizing frequency drift.

UART Control + EEPROM Parameter Retention

UART-based configuration with power-off memory retention

Provides a standard UART interface. Built-in EEPROM stores parameters such as frequency, sub-audio, and squelch settings, ensuring configurations are retained after power loss.

Module Electrical & RF Specifications

For more information about SA818Pro or to download the datasheet, please visit the product detail page.