Today, wireless public address systems are becoming the top choice for communication activities at commune and ward levels thanks to their advantages and convenience in operation. In this article, join NLT Group to explore everything you need to know about wireless public address systems.
What is a wireless public address system?
A wireless public address system, also known as a smart broadcasting system, is an advanced technology solution that allows audio transmission without using cable connections between devices. Instead of relying on a complex cable network, this system uses wireless internet connectivity via 3G/4G networks or wifi to transmit audio signals from the broadcasting source to speakers.

This not only makes installation and maintenance easier but also provides high flexibility, allowing users to move and arrange speakers in various locations without distance or infrastructure limitations. A wireless public address system is an ideal solution for information dissemination at communes, wards, and public areas. >> See more: What is a smart broadcasting system?
Structure of a wireless public address system
A wireless public address system consists of the following four main components:
- Smart speaker unit: meets ISO 9001:2015 standards with advanced broadcasting capabilities across a wide audio frequency range.
- Smart speaker controller: operates on the IoT platform and transmits data to the central server. The smart controllers continuously update data from broadcasting stations and send it to the monitoring center via 3G/4G networks or wifi.

- Smart broadcasting software system: responsible for managing, monitoring, and automatically controlling all equipment within the smart speaker system.
- Server/workstation: receives and displays data transmitted from speaker clusters and presents information visually on the manager’s mobile app and website platforms.
Operating principle of the smart broadcasting system
NLT Group’s smart broadcasting system is developed based on IP technology, which transmits digital information through packet switching, with end devices assigned IP addresses. The transmitting device digitizes information, then divides it into multiple IP packets to transmit data to the receiving point via internet environments such as wifi or 3G/4G, while simultaneously storing data on the Cloud for long term exploitation and use. Thanks to IP technology, audio quality is transmitted with superior clarity and speed, preserving the original signal from the source. In addition, the smart broadcasting system includes a mobile application that allows users to manage and control the entire system anytime and anywhere, preventing issues such as noise, distortion, or signal interference caused by overlapping frequencies with other broadcasting devices.
Outstanding features of the wireless public address system
- Supports both live and indirect broadcasting, easy relay of national radio stations, automatic text to speech broadcasting, and more.
- Easy moderation, management, and monitoring of all broadcast content across centers.
- Digital storage of all broadcast data, ensuring information security and safety.
- Remote control of the entire speaker system via wifi or 3G/4G anytime and anywhere.
- Easy statistical analysis of broadcast news by category, by time period, and monitoring of operational status of each speaker cluster.
- Automatic management and monitoring of all peripheral devices and each speaker cluster to proactively operate, maintain, and repair the system.
>> See more: Smart public address solution for broadcasting stations
Comparison between NLT Group wireless public address speakers and wired public address speakers
Below is a comparison table between NLT Group wireless public address speakers and wired public address speakers:
| Criteria | Wireless public address speakers | Wired public address speakers |
|---|---|---|
| Connection | Uses wireless technology (wifi, 3G/4G networks) | Uses cables to transmit signals |
| Installation | Easy and flexible, no complex wiring required | Complex, requires cable pulling and arrangement |
| Audio quality | Clear sound, no distortion or interference | Prone to distortion and signal interference |
| Security | High | Low, vulnerable to interference or unauthorized access |
| Aesthetics | High aesthetic value | Visible cables reduce aesthetics |
| Management and control | Remote management via mobile app and website | Must be physically present for direct control |
| Features | Multiple smart features such as remote control, broadcast scheduling, content storage management, and more | Lacks smart features compared to wireless systems |
Conclusion
Wireless public address systems represent a breakthrough in audio technology by eliminating complex wiring and offering superior functionality in operation. NLT Group hopes that through this article, you have gained a clearer understanding of wireless public address systems.
Nam Long Technology Investment Group (NLT Group)
- Hotline: 0911 379 581
- Email: kinhdoanh@nlt-group.com
- TIN: 0313339640
- Address: 43T Ho Van Hue Street, Duc Nhuan Ward, Ho Chi Minh City
>> You may be interested in:
NLT Group – Reputable smart broadcasting system supplier for communes and wards nationwide
Smart broadcasting: An effective communication solution to reduce information poverty in 2024
Smart public address system | A new upgrade for traditional loudspeakers
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