During the IBC 2025 show in Amsterdam, there was a booth with a consistent flow of visitors, including delegations from major broadcasters and media production companies from all over the world. A clear demonstration of a cutting-edge development and design leadership from the Chinese manufacturer, the new large-scale Solidcom H1 wireless intercom system innovates in every aspect, from its extended coverage capabilities all the way to built-in Bluetooth in the beltpacks, allowing users to use their own earbuds.
At the center of the Hollyland system is the Geo Central Station, a flexible hub that supports up to 80 wireless beltpacks when used with antenna, all without any licensing fees. Leveraging roaming cascade technology, the system extends wireless coverage to over 4 million square meters, equivalent to approximately 560 soccer fields. Equipped with native Dante integration and 4×4 network ports, the Geo Central Station eliminates the need for additional audio interfaces, significantly reducing rack space and installation complexity while maintaining reliable, independent audio channels for every group.
The Solidcom H1 offers flexible deployment options, functioning as either a standalone system or integrated with the Geo Central Station. It supports up to 30 beltpacks in standalone mode, which can be expanded to 80 beltpacks when linked with the Geo Central Station. Built for productions of any scale, it ensures uninterrupted connectivity and dynamic deployment across diverse shooting or operational environments.
Built to address the evolving needs of large, distributed production teams, Hollyland created a modular topology that allows scaling user capacity based on project needs. "Beltpacks can seamlessly roam across remote radio units (RRUs) and central stations, offering location-independent deployment in challenging environments. With built-in cloud call capabilities, the system extends beyond physical venues — enabling real-time communication across wide-area networks," explains Dave Liu, CTO of Hollyland's R&D Management Center.
Recently, the professional production community has started to explore more affordable intercom solutions based on standard, license-free 2.4GHz technology. Compared to consumer-grade communication solutions, Hollyland's new system lineup offers several important advantages, starting with the number of supported beltpacks. The 30–80 beltpack expansion capability means that the Solidcom H1 solution can be used in everything from small sets to major live productions, all on the robust and much less crowded 1.9GHz frequency band — used for DECT (Digital Enhanced Cordless Telecommunications) devices.
A single Solidcom ANT01 transmitter and expansion unit provides a 500-meter radius of coverage in open-field conditions. When cascaded, the system creates a seamless large-scale wireless network spanning an extensive area.
To meet the demands of multi-team coordination, smart group management also enables operators to save, assign, and switch between up to 100 preset communication groups, ideal for multi-team collaboration in fast-paced environments. Even in smaller setups, the system supports up to 12 independent groups per cluster of ANT01 units.
In addition, the Solidcom BPK01 beltpack is built for mobility, weighing less than 305 grams including battery, and offers up to 15 hours of operation. Integrated Bluetooth support allows users to pair wireless earbuds or headsets for a fully cable-free experience. Its four programmable buttons can be customized for advanced control, including multi-channel talkback, call alerts, and combination actions — all within a simplified user interface.
Adding to its adaptability, cloud access is fully integrated. Two Geo Central Stations linked across sites can manage up to 80 beltpacks, while three Solidcom ANT01 units linked in the cloud can handle up to 30 — allowing flexible participation from off-site coordinators, remote directors, or technical leads. Moreover, the system enables real-time remote diagnostics and support. Authorized users can access system settings and configuration interfaces via a secure web browser, providing technical assistance and maintenance without the need for on-site intervention.
"With this new series, our goal is to deliver a truly scalable, flexible, and borderless wireless communication platform to users around the world," added Dave Liu.
BodyWave Antenna Technology
AntennaWare, a company specializing in antennas for difficult platforms including on body and on metal applications, implemented its innovative BodyWave DECT antenna as a core component of Hollyland's Solidcom H1 wireless intercom system.
Being one of the first manufacturers to embrace the groundbreaking BodyWave antenna technology, and collaborating directly with AntennaWare, Hollyland achieved greater roaming capability and a more durable beltpack, at around 50% of the cost of comparable competitor products.
With advanced wireless channel switching, wideband audio transmission, and noise reduction technology, the Geo Central Station delivers a reliable, high-quality communication experience for production teams working in demanding environments. But one of the biggest challenges for wireless intercom systems is maintaining reliable coverage in crowded venues where body blocking, interference, and signal congestion can disrupt performance. Hollyland addressed this by embedding the BodyWave antenna directly into the Solidcom BPK01 Beltpack, replacing the traditional external whip antenna, which was vulnerable to breakage, and obtaining a smaller yet more durable beltpack with superior wireless performance.
Hollyland's rigorous performance testing reported a 12dB link budget improvement in Non-Line-of-Sight conditions and an extended range of over 330 meters. A significant achievement, exceeding the performance of its previous external antenna designs, despite using an embedded antenna.
"We have worked closely with Hollyland to help bring this breakthrough product to market. Hollyland's own testing once again proves the real-world performance improvements realized with BodyWave antenna technology, allowing our partners to offer a greatly improved wireless experience to their customer base."
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