Retevis RT3S Dual Band DMR Amateur Radio with GPS

The Retevis RT3S  is a dual-band digital amateur radio supporting the DMR Tier II standard. It is designed for licensed amateur radio operators and advanced users who require reliable digital communication while maintaining compatibility with existing analogue systems.

The RT3S operates in both digital (DMR) and analogue modes, allowing a smooth migration to digital technology. It is compatible with DMR Tier I and Tier II radios, including Motorola MOTOTRBO systems using standard encryption.

With support for up to 3000 channels, the RT3S is suitable for complex communication setups involving multiple talkgroups, repeaters, and networks.

Display & User Interface

The RT3S features a colour LCD display that provides clear visibility of operating status, channel information, menus, and GPS data (where supported).

Call Functions

Comprehensive call handling options are supported for both digital and analogue operation.

• Private call
• Group call
• All call

Digital DMR Capabilities

The RT3S complies with the DMR Tier II protocol and uses TDMA digital technology for efficient spectrum usage. Dual time slots support repeater and point-to-point communication, enabling improved channel efficiency.

Promiscuous mode allows monitoring of both group and private calls, making the radio suitable for network monitoring and advanced amateur use.

Safety & Advanced Functions

A range of safety and control features are included to support professional and extended operation.

• Emergency call
• Lone worker function
• Remote radio stun, kill, and revive
• Up to 8 hours of voice recording
• Firmware upgrade support

GPS Support

GPS functionality is supported on compatible variants, enabling location tracking and enhanced situational awareness where required.

Technical Specifications

• Frequency range: 136–174 MHz (VHF) & 400–480 MHz (UHF)
• Channel capacity: up to 3000 channels
• Output power: High 5W / Low 1W
• Battery: 2000 mAh Li-ion rechargeable battery
• Dimensions: 131 × 61 × 36 mm
• Weight: 258 g