- 10+ Mile Long-Range DMR Coverage
- Professional DMR Repeater & Handheld Solution
- Clear Digital Audio in Noisy Environments
- Secure Communication with AES256 Encryption
- Compact and Portable Design for Fast Deployment
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Description
Extend DMR Radio Coverage Up to 10+ Miles: RT97P Digital Repeater & NR30D
This DMR digital radio long range communication solution combines the RT97P DMR digital repeater with NR30D handheld DMR radios to significantly extend communication range.
By deploying the portable repeater at a suitable height or remote site, teams can achieve 10+ miles of stable long-range DMR radio communication, even in areas where direct radio-to-radio contact is limited.
This solution is ideal for users who need reliable coverage across large outdoor areas, industrial sites, farms, events, or emergency locations.
How the RT97P DMR Repeater Expands Communication Range
The RT97P is a compact, 10W output DMR repeater designed for portable and remote installations. This mini digital repeater is suitable for solar-powered repeater sites, vehicles, or temporary field deployments.
Key advantages of the RT97P DMR repeater include:
- Low power consumption for long-term operation
- Small, lightweight, and portable design
- Stable performance in outdoor and remote environments
It effectively transmits signals between handheld radios, overcoming terrain obstacles and extending overall DMR radio coverage.
NR30D DMR Handheld Radios for Clear Digital Communication
The Retevis NR30D is a long-range waterproof DMR business walkie talkie designed for professional and high-noise environments. With a display, powerful noise reduction, and advanced digital features, it delivers clear and secure communication for large teams.
The NR30D DMR radio is especially suitable for:
- Warehouses and logistics centers
- Security teams
- Large-scale events
- Construction and industrial sites
Clear Digital Audio and Stable Signal in Noisy Environments
Compared with analog walkie-talkies, DMR digital radios offer:
- More stable signals
- Clearer voice quality
- Better performance in high-interference environments
- Improved communication reliability over long distances
This makes the RT97P + NR30D solution ideal for environments where background noise, metal structures, or reinforced concrete can impact signal quality.
Simple Deployment: Plug-and-Play DMR Repeater Solution
The RT97P is designed for fast and flexible deployment. Its rugged, water-resistant enclosure integrates the repeater into a compact box, suitable for outdoor use.
Multiple Power Supply Options for Flexible Deployment
- 12V / 24V DC power input
- Car cigarette lighter power support
- AC adapter included
- Compatible with solar battery systems
This plug-and-play design allows users to quickly set up a DMR repeater system without complex infrastructure.
Dual Mode Operation: Digital and Analog Compatibility
The RT97P DMR repeater supports both digital and analog modes, providing excellent flexibility. It can be used to: extend the range of DMR digital radios, support existing analog radio systems during transition
This dual-mode capability makes it a practical choice for teams upgrading from analog to digital communication.
Advanced DMR Walkie Talkie Features for Team Safety and Efficiency
The NR30D DMR handheld radio includes advanced features designed for professional team coordination:
AI Two-Way Noise Reduction
The NR30D is equipped with a noise reduction chip and realizes background noise filtering at both the receiving and transmitting ends. This enables clearer and more accurate voice messaging.
AES256 Encryption
In many business environments, we don't want our communication channels to be occupied and calls to be disturbed. The addition of AES256 encryption is a great way to help you realize the need for more independent and private calls. Ensures private and secure communication in business and industrial environments.
Lone Worker Function
Protects staff working alone in hazardous or confined environments. Teams don't always work together, such as in hazardous environments or tight quarters (e.g. pipelines). Confined environments require the use of Lone Woker to ensure the safety of the people involved, and the DMR is better able to withstand the interference of confined environments and reinforced concrete.
Rugged and Reliable for Outdoor and Emergency Use
The RT97P DMR repeater and NR30D handheld DMR radios are designed for demanding outdoor and emergency environments. Featuring IP67 waterproof protection (NR30D), ruggedized construction, and essential functions such as VOX, emergency alarm, channel lock, and Type-C charging, this DMR radio communication solution delivers stable and dependable performance in harsh conditions. It is well suited for farming operations, camping trips, emergency preparedness, disaster response, and remote or off-grid deployments where reliability is critical.
Ideal Applications for This DMR Repeater & Handheld Solution
This DMR digital radio long-range solution is ideal for:
- Security
- Farms and ranches
- Warehouses and logistics centers
- Construction sites
- Large outdoor events
- Emergency preparedness
Why Choose the RT97P & NR30D DMR Radio Solution
By combining a portable DMR repeater with professional-grade DMR handheld radios, this solution delivers:
- Long-range and stable communication
- Clear digital audio in noisy environments
- Secure and efficient team coordination
- Flexible power and deployment options
It is a reliable and scalable DMR radio communication solution for teams that need dependable coverage beyond the limits of standard handheld radios.
FAQ on RT97P Digital Repeater and NR30D DMR Radio Communication Kit
Q1. How do I pair the NR30D with the RT97P repeater?
A1: Ensure both devices are powered on.
Set the NR30D to the same frequency and CTCSS/DCS code as the RT97P (check the repeater’s manual for default settings).
Test communication by pressing the PTT button—the repeater should relay your signal.
Q2. Why is my NR30D not transmitting through the repeater?
A2: Verify the NR30D and RT97P are on the same frequency/offset.
Check CTCSS/DCS tones match.
Ensure the repeater’s antenna is properly connected.
Q3. Can I use multiple NR30D radios with one RT97P repeater?
A3: Yes! The RT97P supports multiple NR30D units (or other compatible radios) simultaneously, as long as they share the same repeater settings.
Q4. How can I reduce interference when using the repeater?
A4: Set unique CTCSS/DCS tones to filter out unwanted signals.
Avoid overlapping frequencies with nearby repeaters.
Place the RT97P antenna high and away from obstructions.
Q5. Can the RT97P work without internet or cellular networks?
A5: Yes! The RT97P is a standalone UHF/VHF repeater and does not require internet or external networks.
Q6: Does the NR30D have a "Talk Around" function, and what does it do? How do I set it up?
A6:Yes, the NR30D supports Talk Around (Direct Mode). This feature allows the radio to communicate directly with other radios without relying on a repeater, making it ideal for:
Short-range communication (when a repeater is unavailable or unnecessary).
Emergency backup (if the repeater fails).
Private team chats (avoiding repeater traffic).
How to Enable:
Use the programming software to assign Talk Around to a side key (short/long press).
Toggle the key to switch between Repeater Mode and Direct Mode.
Note: Ensure the radio and repeater use the same frequency/CTCSS when switching modes.
Spec
RT97P Main Technological Specification
| Frequency | TX 463.3125MHz / RX 453.3125MHz |
| Standard form | DMR/FM/DMR+FM |
| Channel Capacity | 8CH |
| Channel Spacing | ±12.5KHz Narrow/±25KHz Wide |
| Operating Temperature | -30℃~+60℃ |
| Operating Voltage | DC12V-24V |
| Antenna Impedance | 50Ω |
| Frequency Stability | ±0.5ppm |
| Dimension | 280×210×75mm |
| Weight | 2624g |
Transmitter
| Output power | 10W |
| Transmission Current | ≤2.5A |
| FM Modulation | 11kφF3E/16kφF3E |
| Digital modulation | 4FSK |
| Modulation Distortion | ≤5% |
| FM Noise | ≥40dB（25KHz）/≥35dB（12.5KHz） |
| Adjacent Channel Power | ≥70dB（25KHz）/≥60dB（12.5KHz） |
| Audio Response | +1～-3dB |
| DMR Protocol | ETSI-TS102 361-1,-2,-3 |
Receiver
| Analog receive Sensitivity | 0.25μν（12dB）SINAD |
| Digital receive sensitivity | -120dBm (BER≤5%) |
| Adjacent channel selectivity | ≥70dB（25KHz）/≥60dB（12.5KHz） |
| Inter-modulation | ≥60dB/≥65dB |
| Signal imitation | ≥70dB |
| Audio Response | +1～-3dB |
| Audio distortion | <5% |
| FM Noise | ≥45dB（25KHz）/≥40dB（12.5KHz） |
NR30D Specifications
|
Model |
NR30D |
|
Frequency |
UHF：400-480MHz |
|
Number of Channels |
64 channels: 2 zones (32 channels per zone) |
|
Power |
10W/5W/1W |
|
Battery Capacity |
2800mAh Lithium Battery (with Type-C interface) |
|
Voltage |
7.4V |
|
Antenna Impedance |
50Ω |
|
Antenna |
Detachable Antenna |
|
Earphone Jack |
Moto Pin |
|
Dimensions |
126*58*36mm (H*W*D, excluding antenna and knobs) |
|
Weight |
550g |
Features
Retevis RT97P UHF DMR Portable Repeater
1. UHF-10mhz-Stock：Offset 10mhz, TX: 463.3125mhz and RX: 453.3125MHZ
2. Output power: 10W.
3. Small size: With the package size: 310×283×170mm. Very small and easy to carry, you can use it outdoor.
4. Car charger: Provide the car charger, you can use this repeater in your car.
5. Multi-charger way: Not only provide the car charger, but also provide the DC12V~24V power. Very convenient.
6. LCD display will help you know the TX and RX frequencies, CTCSS/DCS code.
NR30D Function:
High / Middle/Low Power Adjustable
Two Zones
VOX Hands-free
Private Call/Group Call/All Call
Channel Lock
Monitor
Scan
Roger
Emergency Alarm
AES256 Encryption
Lone Worker
Low Battery Alert
Power Save
Squelch
TOT（Time Out Timer）
One Key Call
Remote Stun
Remote Kill
DCDM
RelevantDocuments
Reviews
Customer Reviews
All Reviews
I was skeptical a repeater this small could be effective. The RT97P proved me wrong. It significantly extended the range of our NR30D radios across our wooded property. Powering it from a car cigarette lighter for a weekend camping trip was brilliantly simple. Incredible performance in a tiny, portable box.
On our large, multi-phase construction site, the RT97P repeater lets us create two independent talk groups using dual time slots on the NR30Ds. Steel workers and electricians can communicate on their own channels without interference. The repeater’s rugged box survives the environment, and the radios’ battery lasts all shift. Game-changer for complex projects.
For our remote month-long expedition, the RT97P and NR30D combo was our lifeline. The repeater’s small size and car charger meant we could set up a comms hub anywhere. The NR30D’s AES256 encryption kept our plans private, and the noise reduction was crucial in windy conditions. A professional-grade system in a portable package.
Managing our 500-acre farm was a communication nightmare. The RT97P repeater, powered by a solar panel in the barn loft, now covers every corner. Paired with the NR30D radios, we have crystal-clear digital communication from the farthest field back to the house. The setup was straightforward, and it’s transformed our daily operations.
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DELIVERY
- Dispatch: Within 24 Hours
- Free shipping across all products on a minimum purchase of $50.
- International delivery time - 7-10 business days
- Cash on delivery might be available
- Easy 30 days returns and exchanges
RETURNS
If you do not like the product you can return it within 15 days - no questions asked. This excludes bodysuits, swimwear and clearance sale items. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.
