MGT 120 — Digital Audio Transmission System
The MGT 120 is a compact digital audio transmission system engineered for discreet voice links with high-quality digital encoding. It is designed to deliver consistent performance in surveillance and intelligence applications where size, reliability and signal integrity are critical.
The system includes the MGT 120-T transmitter and the MGT 120-R receiver. The transmitter supports proprietary digital encoding and configurable RF output power (up to 1 W), while the receiver provides a straightforward 3.5 mm audio interface for monitoring and integration.
Features
- Ultra-compact transmitter format.
- Encrypted/proprietary digital transmission architecture.
- 64 kHz mono digital audio (16-bit).
- High microphone sensitivity for clear voice capture.
- Hidden and programmable ID key.
- RF output power from 100 mW up to 1 W (configuration dependent).
Applications
- Body-worn and discreet installations with an external battery supply.
- Indoor surveillance audio operations using an external microphone power supply (110–220 VAC).
- High-quality audio monitoring over extended distances (deployment dependent).
Technical overview
MGT 120-T (Transmitter)
| Frequency | 430–440 MHz |
|---|---|
| RF output power | From 100 mW up to 1 W |
| Modulation | Digital FSK with proprietary encoding |
| Audio quality | 64 kHz · 16-bit · mono |
| Signal format | Fully digital |
| Power supply | 3.6 VDC to 15 VDC; external PSU 110–220 VAC (where required) |
MGT 120-R (Receiver)
| Audio interface | 3.5 mm stereo jack |
|---|---|
| Antenna connector | SMA (M) · 50 Ω |
| Antenna | Omni-directional · 2 dBi · length 216 mm · 90° |
| Power supply | 6–15 VDC |
| Current consumption | 23 mA @ 9 VDC |
Procurement, compliance & support
Supply is restricted to qualified government, defence and law-enforcement customers or accredited partners. End-use and export controls apply; local spectrum regulations must be observed. Confidential datasheets, integration guidance, operator training and lifecycle support are available on request.