New Version, New Experience: Differences Between the Upgraded Full-Duplex Intercom Module SA6X8-C1 Series and SA6X8

The SA6X8-C1 series and the SA6X8 series from NiceRF Wireless are both integrated digital and audio full-duplex transmission modules, available in two power specifications: 160mW (F22) and 1W (F30). Both series enable wireless transmission of voice signals through I2S digital audio or analog audio interfaces. They share several features, including multi-level wireless relay capabilities, support for over-the-air (OTA) and serial port upgrades, ESD (Electrostatic Discharge) protection, MESH networking, and watchdog protection against system crashes. This article will briefly analyze the common characteristics and upgrade advantages of these two modules.

The SA6X8-C1 and SA6X8 modules share several technical specifications, ensuring exceptional performance. Both modules are designed with high integration and compact size, allowing easy external connection of audio amplifiers, microphones, and speakers for remote wireless transmission of digital voice. For the 160mW (F22) power specification, the common technical specifications of SA6X8 and SA6X8-C1 are as follows:

Operating Voltage: Both modules support an operating voltage of 2.3~3.6V, making them suitable for various power environments.

Sleep Current: With a low sleep current of only 12µA, the modules significantly extend battery life during inactivity.

Receiving Current: The receiving current is 50mA, ensuring efficient power consumption while receiving signals.

Transmitting Power: The transmitting power of 22dBm guarantees a longer signal transmission distance.

Frequency Range: Both modules support UHF frequencies from 420-510MHz and can be customized from 150-960MHz to meet different application needs.

Audio Processing: They both support I2S digital audio and analog audio input and feature echo cancellation to enhance call quality.

8-Channel Concurrent Communication: The modules support up to 8 devices transmitting simultaneously, with unlimited reception, making them ideal for collaborative team scenarios.

Full-Duplex Data Transmission: They support simultaneous sending and receiving of information, enhancing the natural flow of conversation.

OTA Over-the-Air Upgrade: Both modules support OTA and serial port upgrades, allowing users to update the module's functions and performance at any time.

MESH Networking: They support MESH networking, enabling multiple devices to connect simultaneously, allowing for flexible deployment and reducing blind spots to improve emergency response capabilities.

International Certification: Both modules can obtain CE/FCC certification.

Upgrade Description for the Full-Duplex Intercom Module SA6X8-C1

The upgrade of the full-duplex intercom module can be summarized in one sentence: after this upgrade, the entire series of full-duplex intercom modules is no longer limited by the number of users, allowing all to enjoy high-quality communication with up to 8 people. To enhance understanding of the audio quality upgrade in this full-duplex intercom module, the following is a brief introduction to this upgrade:

To understand the phrase "not limited by the number of users, all can enjoy high-quality communication with 8 people," we first need to clarify what "high-quality communication with 8 people" means. As mentioned earlier, both the SA6X8-C1 and the SA6X8 support a maximum of 8 concurrent transmitters (with no limit on reception). Here, "highest quality" refers to the fact that generally, the more participants involved in a concurrent conversation, the quality may decrease. For example, there may be differences in audio quality between 2, 4, and 8 concurrent participants. However, the SA6X8-C1 has been optimized through this upgrade to maintain the same excellent audio quality during 8-person concurrent communication as it does during 2-person communication. This means that regardless of the number of participants, the module can ensure that each user enjoys the highest quality, fully meeting the needs of multi-party collaboration while continuing the outstanding performance of the SA6X8 series modules in full-duplex communication.

The specific changes in this upgrade are detailed in the table below, allowing users to make informed choices based on their application needs:

This upgrade mainly involves a firmware update for the module. Customers using the upgraded software do not need to make any changes; they only need to replace the module. The C1 PC software is compatible with the SA6X8, but customers using the C1 are recommended to use the C1 PC software.