1, DMR radios with more channel numbers, easy to make group calls, private calls,s and All calls.
2, DMR radios have great encryption. Analog radios only use the CTCSS/DCS to prevent unwanted signals.
3, Clear voice. Compare with the analog mode two-way radio, DMR radios get a clearer voice than analog mode walkie-talkie.
DMR ham radio is an open standard radio network optimized through efficient bandwidth use via Time-Division Multiple Access. TDMA divides communication into time slots, which ensures the senders and receivers can communicate uninterrupted in two separate conversations without changing the frequency.
DMR is an open standard, which means any company can manufacture a compatible product. This makes the DMR radio market more competitive, which leads to better hardware and lower prices for consumers. This makes the DMR ham radio community easy to join. Follow along to learn the basics and get started in the DMR ham radio world.
Digital Mobile Radio (DMR) is an international digital radio standard developed by the European Telecommunications Standards Institute (ETSI), and first ratified in 2005. More than a decade ago, vendors and users of radio systems recognized that the existing analog trunking standards required updates with modern techniques to provide:
As a result, today, we have a complete set of standards that cover voice, data services, and conformance testing.
DMR aims to provide an affordable, low-complexity digital standard to replace analog radio. The ETSI DMR Standard defines three different tiers on www.dmrassociation.org:
The DMR standard also specifies the use of TDMA technology. TDMA stands for Time Division Multiple Access. TDMA provides two logical channels and each 12.5-kilohertz channel space (see diagram below). This provides a useful doubling of capacity within the same analog channel space.
You have two choices here, either a DMR Portable or a DMR Mobile. The DMR Portable is a low-power device and resembles a walkie-talkie. The DMR Mobile is a high-power device, but since DMR operates so efficiently, these models are generally reserved for use in commercial radio and look much like the radios police cars have in them.
If you want to buy the one DMR radio, you can order the following best dmr radios
1. HD1 IP67 FPP Dual Band Ham RadioBrand: Retevis-Ailunce, Ailunce is Retevis' Sub-brand, only for amateur radios
Model: HD1
Operating range: 136-174 /400-480MHz /76-107.95MHz
Number of channels: 3000
Squelch/Coding: Yes, CTCSS/DCS subtones, DMR mode with the basic and enhanced encryption
Output Power: VHF 10W/5W/1W / UHF 8W/4W/1W
Possibility to connect a PTT/Headset: Yes
Battery: Li-ion / 3200mAh
Supports both digital and analog modes, compatible with existing analog systems, users can gradually switch analog terminal settings according to budget and actual communication needs.
Dual time slot for point-to-point supports two group calls in one channel under a direct model; 3000 channels, and 20000 priority contacts enable you to call the people important to you more conveniently. You may upload 200,000 contacts.
Waterproof walkie-talkie HD1 has VFO mode; very easy to operate.3200mAh battery enables normal use 7 days standby / 2-3 days typical use / Continues use 12-16 hours.
HD1 has a GPS positioning function, the GPS function gives you location information like latitude and longitude, and altitude.
SMS function support texting the information to another radio with the same DNA protocol. In the event of an emergency, GPS can be used to locate the team's location for emergency rescue.
IP67 waterproof rating, can be immersed in 1 meter of water for 30 minutes, waterproof and dustproof function, can be used in rainy and snowy weather, and very suitable for outdoor use.
AILUNCE HD1 DMR Digital VHF/UHF Handheld Radio With CTCSS/DCS TONE SQUELCH long-range waterproof ham radios
2. Retevis HD2 – Bluetooth-Enabled Dual Band DMR Radio
HD2 is a powerful and versatile DMR radio that supports both digital and analog communication. Ideal for outdoor and mobile ham radio users, it offers robust performance with modern connectivity.
Key Features:
Dual Band DMR: Supports digital and analog modes with clear, encrypted audio
Bluetooth 5.0 Headset Support: Enables hands-free VOX operation, perfect for mobile use
Built-in GPS: Real-time latitude/longitude tracking for outdoor and emergency scenarios
Massive Contact Capacity: Upload up to 500,000 DMR contacts; manage 5,000 priority contacts
IP67 Waterproof: Reliable even in harsh environments – rain, snow, or dust
Other Functions: VOX, lone worker, remote monitor, talk around, firmware updates, color code setting, and more
P1 is a high-power professional-grade DMR radio designed for users who need advanced encryption and extended range for critical communications.
Key Features:
ARC4 / AES128 / AES256 Encryption: Compatible with Motorola systems for secure communication
High Power Output: Ensures long-range, stable transmission
260 Hours Recording Playback: Convenient for mission logs or field documentation
Full Feature Set: Vox, Lone Worker, Emergency Alarm, Remote Monitor, Channel/Priority Scan
Versatile Operations: SFR Mode, Battery Saver, Talk Around, Firmware Upgrade
The NR30D is a powerful compact DMR radio, ideal for users who prioritize lightweight design with high-level security and functionality.
Key Features:
Adjustable Output Power: High/Mid/Low settings for flexible use
Dual Zones: Easy channel management for workgroups
AES256 Encryption: For secure and private communication
Hands-Free VOX Operation, Channel Lock, Scan, Roger Beep
Emergency Features: Lone Worker, Emergency Alarm, Remote Stun/Kill
Battery Saving & Time Out Timer
DCDM Support: Dual Capacity Direct Mode for improved efficiency
Whether you're just getting started in the DMR world or you're looking to upgrade your equipment, HD1, HD2, P1, and NR30D offer the power, encryption, and reliability to meet any amateur radio operator's needs.