Final Day at BIRTV 2026 | Relacart Show Highlights and Product Showcase

On August 22, 2026, the 33rd Beijing International Radio, TV & Film Exhibition (BIRTV 2026) successfully concluded at the China International Exhibition Center in Beijing.

Throughout the four-day exhibition, Relacart showcased its full-scenario digital wireless system solutions, attracting strong interest and recognition from professionals across the broadcasting, film and television production, sports broadcasting, and system integration industries.

BIRTV 2026 Highlights

Looking back on these four days, the Relacart booth was more than just a showcase of our key products and solutions.

Throughout the exhibition, we held in-depth, one-on-one discussions with broadcast engineers, film and television sound professionals, sports broadcasting technical teams, and other industry specialists from across the country.

Beyond presenting our technologies and products, these conversations gave us the opportunity to listen closely to the real-world requirements, application challenges, and valuable feedback of frontline professionals.

Many visitors also experienced Relacart products firsthand at the booth.

They explored the portable integration of the 4PortGo Portable Multicoupler for HCR-30D Receivers, experienced the AFS (Automatic Frequency Search) function of the HCR-30D UHF True Diversity ENG Wireless Receiver, tested the high-density transmission capabilities of the UR-D Series Digital Wireless Microphone Systems, and experienced the clear monitoring performance of the PM-320 Wireless In-Ear Monitor System.

The positive feedback we received from professionals at the show will continue to inspire Relacart to refine its products and develop more practical professional audio solutions.

HCR-30D

UHF True Diversity ENG Wireless Receiver

Designed for professional camera and ENG applications, HCR-30D is a professional wireless receiver that can be used with wireless handheld microphones or bodypack transmitters, giving camera crews greater freedom of movement while maintaining reliable wireless audio transmission.

• Multi-function Output Module
  HCR-30D supports three output module options: D-Sub 15P, D-Sub 25P and Mini XLR. The interchangeable mounting structure makes it easier to install the receiver on different professional video recorders and cameras.

• True Diversity Reception
  The receiver supports ultra-wideband UHF operation from 522 MHz to 936 MHz together with true diversity reception, helping provide stable RF reception for professional field production.

• PLL Phase-Locked Oscillation Circuit
  A stable PLL-based RF architecture works together with noise-detection mute control to help suppress environmental noise and RF interference.

• DSP Audio Expansion Algorithm
  Its DSP audio processing is designed to reduce noise introduced during wireless transmission and restore clean audio. Multiple receiver audio output modes are also available for different production requirements.

• High-Precision Circuit Control
  Microcomputer-controlled system circuitry and frequency calculation help improve overall operating stability and reduce problems such as frequency drift or interruption.

• AFS — Automatic Frequency Search
  The built-in AFS function automatically searches for clean and available frequencies in the actual operating environment, making on-site frequency setup more efficient.

• IR — Infrared Automatic Frequency Adjustment
  HCR-30D also supports infrared automatic frequency matching for convenient synchronization with compatible wireless transmitters.

4PortGo

Portable Multicoupler for HCR-30D Receivers

4PortGo is a separate portable multicoupler designed for live production, professional film and television production, and outdoor shooting.

It can connect four HCR-30D true diversity camera wireless receiver systems, enabling centralized multi-channel audio transmission and management for recorders, cameras, mixers, and other professional production equipment. It also provides balanced mini XLR audio outputs.

• Antenna Distribution
  4PortGo features built-in antenna distribution, allowing four connected receivers to share two antennas. This simplifies RF connections while improving the reliability of the overall system.

• Portable Design
  Its compact housing is made of lightweight and durable alloy. The unit can be carried in a camera bag, making it suitable for professional audio recording, field production, film and television production, and outdoor shooting.

• Multiple Power Supplies
  4PortGo incorporates multiple power-supply options for four connected receivers. It normally gives priority to its two external DC power inputs and can also operate from an external battery. If one power source is interrupted, the system can automatically switch to another available source, helping prevent unexpected recording interruptions. 

BIRTV 2026 may have come to an end, but Relacart’s communication and collaboration with professionals across the industry will continue.

We sincerely thank everyone who visited the Relacart booth. Your attention, trust, and valuable feedback encourage us to move forward with even greater confidence in the field of professional wireless audio.