ATS-22R 16-Channel UHF Receiver (2-Way)

ATS‑22R Receiver

Overview

The ATS‑22R is a compact, licence‑free 16‑channel digital miniature receiver (863‑865 MHz) designed for distributing a voice source wirelessly. It delivers clear voice transmission with strong interference resistance, making it suitable for tour‑guide, trainer/student, conference, or interpretation applications.

Design and Build Quality

• Lightweight form factor: approx. 37 g, with dimensions 40 × 87 × 12 mm -- easy to carry and unobtrusive.
• Sturdy housing suitable for indoor use; designed to resist common environmental conditions in conference and training settings (air humidity, moderate temperature). Operating ambient temperature: 0‑40  degreesC.
• Built‑in rechargeable lithium battery (3.7 V / 600 mAh) with power‑saving auto‑off after 20 minutes of no input signal.
• Features an LCD display showing channel, carrier signal, volume, and battery status. Clear user feedback for reliable operation in the field.
• Includes clip‑on earphone; uses a 3.5 mm jack for audio output. Charging via micro‑USB.

Key Technologies and Features

• 16 digital channels allow multiple simultaneous communication streams; can run up to four different channels in parallel without interference.
• Licence‑free operation in the EU (863‑865 MHz band), simplifying deployment with no regulatory overhead.
• Intercom function when used in conjunction with the matching transmitter (ATS‑22T) via a push‑button, enabling two‑way comms if required.
• High interference immunity thanks to its digital transmission architecture. Less susceptibility to drop‑outs or noise compared to older analogue systems.
• Power efficiency: long operating time (> 15 hours) on a full charge, suitable for a full day's usage in many scenarios.

Specifications

Performance and User Experience

In practical use, the ATS‑22R provides clear, reliable voice transmission across its 16 digital channels, with minimal interference in typical indoor environments. The long battery life means fewer interruptions, and its lightweight build ensures comfort for users who are carrying or wearing the unit for extended periods. The auto‑off function helps conserve power in between sessions. With an LCD display and a user-friendly interface, selecting channels, monitoring the battery, and verifying signal strength are straightforward. The intercom functionality adds flexibility for guide‑led tours or instruction scenarios.

Q&A Section

• Q: How long does the battery last in continuous use?
  A: More than 15 hours on a full charge under typical operating conditions.
• Q: Is this device legal to use without a licence in the UK/EU?
  A: Yes. The ATS‑22R operates in the 863‑865 MHz band, which is licence‑free in the EU. It is also in conformity with relevant RED/UKCA regulations.
• Q: Can multiple channels be used in the same venue without interference?
  A: Yes -- up to four different channels may be operated in parallel without interference, making it suitable for larger groups or subdivided audiences.
• Q: How does charging work?
  A: The unit has a micro‑USB charging port. A compatible ATS‑12CB or ATS‑35CB charging unit or a standard USB charger may be used.
• Q: What happens if there is no signal for a while?
  A: The receiver will switch off automatically after 20 minutes of no input signal to save power.