The Monacor ATS‑20T is a licence‑free digital voice transmitter operating in the 863‑865 MHz band. Designed for tour guide and conference applications, it enables clear, interference‑resistant voice transmission to multiple receivers. Its compact build, robust features, and extended battery life make it well‑suited for guided tours, museums, translation services, or any situation where a speaker needs to be heard by a group without ambient noise interference.
| Parameter | Detail |
|---|---|
| Description | 16‑channel digital miniature transmitter |
| Carrier frequency range | 863‑865 MHz |
| Transmitting power (EIRP) | ≤ 10 mW |
| Operating range | Approx. 100 m (line of sight) |
| Power supply | Integrated rechargeable lithium battery (3.7 V, 600 mAh) |
| Operating time | > 15 hours |
| Dimensions (W × H × D) | 40 × 80 × 12 mm |
| Weight | 37 g |
| Connections | 3.5 mm jack (mic/line‑in); micro USB charging port |
| Ambient temperature range | 0‑40 degreesC |
Users can expect very clear voice transmission, thanks to digital modulation in a licence‑free band, which reduces interference and drop‑outs that are common with analogue systems. The >15‑hour battery life makes the transmitter suitable for all‑day use, and the lightweight design ensures minimal fatigue when worn with a lanyard or clipped to clothing. The automatic input detection (mic vs line) simplifies connectivity without needing manual switching. The range of ~100 m is practical for many tour or site conditions; in enclosed or crowded environments, this may reduce somewhat, as with all wireless gear.
Q: Is a licence required to operate this in the UK?
A: No -- the frequency band 863‑865 MHz is licence‑free in the EU, which includes the UK under current radio‑spectrum regulations for such devices.
Q: Can I use an external microphone or headset?
A: Yes -- it supports 3.5 mm line‑in or microphone input. An electret tie‑clip mic is supplied.
Q: How long does the battery last, and how is it charged?
A: Provides over 15 hours of operating time. Charging is via a micro USB port. Battery specification: 3.7 V, 600 mAh.
Q: What is the effective range of transmission?
A: Approximately 100 metres under ideal conditions (line‑of‑sight). Walls, obstacles, or interference may reduce range.
Q: How many channels are available, and can multiple channels be used simultaneously?
A: 16 channels are available. Up to 4 channels may be used in parallel without interference.
Q: What are its environmental limits?
A: Operational ambient temperature from 0 to 40 degreesC. It is intended for indoor use; protection is required against moisture or dripping water.
