NiceRF Wireless Analog Walkie-Talkie, Digital Walkie-Talkie, and Full-Duplex Walkie-Talkie Module Product Description and Overview of Wireless Walkie-Talkie Modules

NiceRF focuses on providing high-performance, cost-effective wireless walkie-talkie modules to help customers achieve efficient communication across various application scenarios. The product range includes analog, digital, and full-duplex communication modules and function boards. To meet the diverse needs of different markets and applications, NiceRF offers OEM and ODM customization services, as well as product certification services. Below, we highlight a selection of products from each series to help customers choose the most suitable module based on their specific requirements.

Full-Duplex Audio Walkie-Talkie Series

NiceRF full-duplex audio transmission modules are designed as high-integration, cost-effective, high-power full-duplex wireless walkie-talkie modules. These modules feature a standard serial port that allows easy and quick communication with the module, enabling users to set relevant parameters and control transmission and reception functions. By simply connecting an external audio amplifier, microphone, and speaker, users can turn the module into a compact walkie-talkie. The entire series supports MESH networking, SED  protection, watchdog protection to prevent crashes, and has CE and FCC certifications. With a small size and low-power design, these modules are ideal for applications in ear-mounted devices and smart helmet miniaturization.

Features of Full-Duplex Audio Modules

Echo cancellation function

VOX function

MESH Network

I2S Digital audio & analog audio

Line In + Mic - input

Sleep low power consumption

Support OTA &Serial upgrade

The SA628F30 module is an application board for the SA618F30 module, and there is also a corresponding SA628F22 module application board for the SA618F22.

The SA618F30-DZ is based on our SA618F30 module, featuring a separate design for the transmit and receive antennas, with the TXEN pin externalized for easier integration with RF amplifiers.

 The SA618F22-C1 is the latest generation of the full-duplex upgraded version, allowing unlimited concurrent communication while sharing the highest audio quality.

In addition to full-duplex audio modules, NiceRF has also developed the full-duplex data transmission module SA618F30-FD.

SA Analog Walkie-Talkie Series

The NiceRF analog walkie-talkie series is a highly integrated professional walkie-talkie module that provides standard interfaces. Users can easily connect an external audio amplifier, microphone, and speaker to operate it as a compact walkie-talkie. The simplified interface and ultra-compact size allow for easy integration into various handheld devices. It features a built-in EEPROM for data retention during power loss and uses a 1ppm TCXO crystal oscillator, making it suitable for various small walkie-talkies and security systems.

The upgraded version of the S series analog walkie-talkie module adds an LNA circuit, improving sensitivity by 4dBm. The module operates within a frequency range of 400-470MHz, with output power fluctuations of less than 1dB. It achieves low-power output of 27dBm +/- 1dBm within the 400-470MHz range. Note: The software and hardware interfaces remain the same as before, ensuring mutual compatibility.

The SA809 walkie-talkie module series consists of a transmitter (SA809-TX) and a receiver module (SA809-RX). The transmitter can also be used with any market walkie-talkie that has DTMF functionality.

To facilitate customer use, the SA858 is paired with an accessory board (SA858-PJ). This small board expands the module's pins through a dedicated FPC ribbon cable and integrates components such as a microphone, channel adjustment knob, volume knob, and PTT button. Users only need to connect an external speaker to use it as a high-power miniature walkie-talkie. The accessory board is shown below:

This walkie-talkie module is a high-power wireless device that draws a significant amount of current during transmission. We have equipped the module with a dedicated heat sink to ensure it maintains good performance even when generating heat during prolonged transmission, as shown in the image below:

Digital Analog Walkie-Talkie

The NiceRF digital walkie-talkie module is not only compatible with commonly used analog walkie-talkies on the market , but also includes digital walkie-talkie functionality. The module provides customers with a standardized serial interface, allowing for easy and quick setup of transmission and reception frequencies, contacts, and other parameters through serial commands. Its high integration means users only need to connect an external audio amplifier, microphone, and speaker to operate it as a compact digital walkie-talkie.

The DMR828S is a 2W digital walkie-talkie module that is compatible with commonly used analog walkie-talkies on the market and features DMR Tier II digital walkie-talkie functionality, utilizing an integrated Moto AMBE++ vocoder. The module internally integrates circuits for a digital walkie-talkie chip, RF amplifier, and audio amplifier.

The DMR858S is a 5W digital walkie-talkie module, also compatible with both analog and digital walkie-talkie functions. As a high-power module, it is similarly equipped with a compact accessory function board.

In DMR mode, the digital walkie-talkie supports the following features:

SMS Sending Function: Supports both direct communication and SMS applications.

Voice Encryption Function: Ensures secure voice transmission, along with SMS encryption.

Call Alerts: Provides prompts for both incoming and outgoing calls.

This concludes the product introduction for NiceRF's full-duplex walkie-talkie modules, analog walkie-talkies, and digital walkie-talkies. The full-duplex module series features full-duplex communication, MESH networking, and 8-channel concurrent communication, making them suitable for environments that require timely communication and multi-user conversations, such as firefighting communications and outdoor cycling.

The DMR digital walkie-talkie module supports both analog and digital dual communication. Its dual time-slot capability allows more users to communicate on the same frequency without interference, supporting voice encryption and SMS encryption. This makes it ideal for applications with high confidentiality and spectrum efficiency requirements, such as property management handheld communication.

The SA analog walkie-talkie module series features a simple module structure, offering a smaller module size compared to digital and full-duplex walkie-talkies. With an efficient reception sensitivity of -124dBm, it can achieve a transmission distance of 4-5 kilometers in open areas. This provides a lower-cost, high-cost-performance walkie-talkie solution while ensuring relatively complete walkie-talkie functionality.