BST HTX-28R - UHF Conference System with USB Recording

BST HTX-28R – UHF Conference System with USB Recording

The BST HTX-28R is a 19″ (1 U) rackmount UHF conference receiver designed for large venues and auditoriums. It can pair up to 256 microphones (HTX-28C Chair and HTX-28D Delegate) and manage 5 simultaneous speakers in Limited (1/2/3/4), FIFO (1/2/3/4) or Exclusive Chair modes. It incorporates automatic band scanning and selection of the best frequencies, automatic microphone synchronization and multi-channel filtering to eliminate interference, noise and the Larsen effect. The integrated USB recording module records discussions in WAV format, while the balanced (XLR) and unbalanced (6.35 mm jack) audio outputs facilitate connection to PA systems or external recording.

Main features

• Modes of operation: Limited (1/2/3/4), FIFO (1/2/3/4) and Chair only.
• 5 UHF channels with independent volume per channel.
• Supports up to 256 microphones, 5 active simultaneously, optional video tracking.
• Up to 16 complete systems in the same space without cross-interference.
• Band scanning and automatic/manual selection of optimal frequencies.
• Automatic microphone synchronization and remote shutdown when the receiver is turned off.
• Multi-channel system with UHF carrier and dual frequency (audio/data) for interference and Larsen suppression.
• TONE-LOCK parasitic noise detection circuit to protect system integrity.
• Front USB recording module compatible with drives up to 32 GB.
• Audio outputs: Balanced XLR and unbalanced 6.35 mm jack.
• Operating range: up to 100 m depending on room configuration.
• Dimensions: 485 × 355 × 85 mm; weight: 7 kg.
• Power supply: 12–15 V DC (via 110–240 V~ adapter). Power consumption: 7 W.

Product benefits

• Massive scalability: Handle hundreds of microphones and multiple simultaneous conferences without signal degradation.
• Operational flexibility: Various speaking modes and chair priority ensure an orderly flow of debate.
• Robustness and reliability: Advanced filtering, Larsen suppression and noise detection maintain sound quality.
• Complete recording: Direct recording of debates to USB for archiving and auditing.
• Professional Integration: Standard XLR/jack and rack outputs facilitate installation in advanced AV systems.

Use cases

Ideal for conferences, general assemblies, board meetings, and university auditoriums; venues with multiple adjacent rooms where coordination of multiple conference systems is required; and applications requiring video recording and tracking.

Frequently Asked Questions

• How many microphones can speak at once? Up to 5 simultaneously, depending on the Limited or FIFO mode.
• How do I record my session? Insert a USB drive into the front port; use the LCD menu to start/stop recording in WAV format.
• Can I operate multiple systems together? Yes, up to 16 HTX-28R systems in the same room without cross-talk.

Description for projects

1 U rack-mount UHF conference receiver, 5 channels, 256 microphone management, Shift modes (Limited/FIFO/Presidency), USB recording, TONE-LOCK filtering, XLR/jack outputs, 100 m range, 12–15 VDC power supply.