Digital Interphone DM-1701 Dual Time Slot Two-Way Radio 5W 999 Channels

The DM-1701 is a professional-grade digital interphone designed for reliable two-way communication across wide areas. With dual time slot technology, it makes efficient use of frequency channels, reducing interference and allowing more users on the same system. Its 5W RF output power supports a theoretical communication distance of 5-10km, making it suitable for security teams, event staff, construction sites, and outdoor enthusiasts. Operating on both VHF (136-174MHz) and UHF (400-520MHz) bands, this radio adapts to different licensing and usage environments. The inclusion of 999 programmable channels means you can organise talk groups, individuals, or emergency channels with ease. A rechargeable lithium battery keeps the unit powered through long shifts.

Features and Construction

This digital interphone combines robust channel capacity with dual-band flexibility, all in a handheld form factor designed for daily professional use.

Dual Band Coverage

The DM-1701 covers two essential frequency ranges: VHF from 136 to 174MHz and UHF from 400 to 520MHz. This dual-band capability allows users to operate on different radio systems or switch bands depending on terrain, building penetration needs, or regulatory requirements. Each band delivers strong 5W output power for extended reach.

999 Programmable Channels

With 999 channels available, this interphone can be customised to suit large teams, multiple departments, or varied operational zones. Channels can be programmed via software to assign specific frequencies, tones, and talk groups, enabling efficient communication without cross-channel interference.

Dual Time Slot Technology

Digital dual time slot architecture allows two independent conversations to occur on the same frequency channel simultaneously. This doubles capacity without needing additional spectrum, making the DM-1701 a cost-effective choice for busy radio environments such as logistics centres or event coordination.

Uses and Placement

The DM-1701 is built for clear communication in professional field settings, from security patrols to construction projects.

Security and Event Communication

Security teams can rely on the DM-1701's 999 channels to separate different zones or patrol groups. The dual time slot feature allows supervisors to communicate with one group while other teams continue on the same channel, reducing call congestion during large events or multi-site operations.

Outdoor and Remote Work

For outdoor workers such as surveyors, groundskeepers, or search and rescue volunteers, the theoretical 5-10km range provides coverage across large sites. The lithium battery offers rechargeable power, and the dual-band coverage helps maintain connectivity in varying terrain.

Commercial and Industrial Coordination

In warehouses, factories, or construction sites, the DM-1701's 5W power and wide channel count support coordination between multiple teams, loading bays, and supervisors. Digital clarity reduces background noise common in industrial environments.

Benefits and Buying Value

The DM-1701 delivers practical value through its channel capacity, band flexibility, and rechargeable power system.

Reuse and Low Maintenance

Powered by a rechargeable lithium battery, the interphone eliminates the cost and waste of disposable alkaline cells. Routine charging and simple antenna care are the main maintenance tasks, keeping downtime low.

Why Choose This Product

If you need a digital two-way radio that can handle both VHF and UHF frequencies while offering extensive channel programming, the DM-1701 provides a practical solution. Its dual time slot design makes efficient use of limited frequency resources, and the 5W output provides solid range for most professional scenarios.