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NOTE:
- Please note the customized information when placing an order.
- After confirming your custom frequency, it will take 4 weeks to customize.
- After customization, the frequency is fixed and cannot be returned.
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Description
Spec
Model: RT97L
Frequency: Customized
Channels: 16
Power: 25W（High）/5W（Low）
Working Voltage: 13.8V
Waterproofing Grade: IP66
Weight: 7.86 lb
Dimension: 11.22 × 7.28 × 2.68
FAQ
The RT97LD is a 25W customizable portable DMR repeater with an IP66 waterproof body, 16 channels, and an internal duplexer. It relays AES256, AES128, or ARC4 encrypted traffic, reduces power automatically above 60°C, and heats itself below -15°C. This kit adds an FRP antenna and coaxial cable.
The RT97LD is the 25W DMR repeater on this page. The RT97L is its 25W analog GMRS sibling, the RT97S is the 10W GMRS model, and the RT97 is the original analog full-duplex repeater. The RT97P is the 10W DMR portable repeater sold in kits with handhelds. Choose by protocol (DMR vs GMRS), power (25W vs 10W), and your local band rules.
The difference matters most at range. With 5W, long-distance links can come back weak or not at all; 25W significantly improves signal range for clearer communication over much longer distances. Power is not the only factor — antenna height matters too, and where elevation is unfavorable, moving to 25W helps extend range and overcome obstacles.
Factory output of the RT97LD runs between 22W and 25W. With the internal duplexer in line, some power loss occurs, and actual output may range from 15W to 22W depending on the quality, thickness, and length of the feeder cable. Even with that fluctuation, performance stays solid and reliable in most conditions.
You can choose UHF 400-470 MHz or VHF 136-174 MHz. The offset must stay at or above 5 MHz and at most 12 MHz, and frequencies should be programmed within ±200 kHz. Note your RX frequency, TX frequency, offset, and charger type when ordering; custom builds take about 4 weeks.
Receive mode absorption is 180 mA and transmit mode absorption is 5.5 A. These figures describe the current the repeater draws in each mode, which matters for sizing solar panels, batteries, and power supplies at fixed sites.
The RT97LD is rated IP66, which means it withstands powerful jets of water from all directions — the rating covers the whole enclosure even where access doors sit. For optimal longevity, Retevis still recommends installing the repeater in a protected location, especially in areas with extreme weather.
Yes. The RT97LD comes with an internal duplexer, which lets the repeater transmit and receive on its paired frequencies simultaneously without interference — that is what enables full repeater operation on a single antenna.
The RT97LD stores 16 channels, so it can switch quickly between up to 16 programmed frequency pairs. Note: the page section titled 8 Adaptive Channels reflects older copy — the spec table, the FAQ, and the product image listing CH01 through CH16 all confirm 16-channel capacity.
The duty cycle for the RT97LD repeater is 100%, so it can stay in continuous relay service. Thermal protections still apply: power drops automatically above 60°C, and long transmissions trigger the relay-protection switch to low power until the unit cools.
The main difference is power and sealing: the RT97LD is a 25W repeater with IP66 waterproof certification, while the RT97S is a 10W model. Choose the RT97LD when coverage area and weather exposure drive the requirement.
Yes. The RT97LD DMR version supports both DMR and analog operation on individual channels, with the option to select either FM or DMR mode per channel — so mixed fleets can share the repeater while you phase in DMR handhelds.
At 25W the RT97LD relies on built-in relay protection rather than external cooling: when extended operation pushes temperature to the threshold, it automatically switches to low power, then returns to high power once it cools down. No additional cooling is specified as required.
The RT97LD relays transmissions encrypted with AES256, AES128, or ARC4. The receiving terminal must be configured with the same encryption type as the transmitting terminal, so plan encryption keys across the whole fleet before rollout.
The 1 Pack + Antenna + Cable variant adds a fiberglass (FRP) outdoor antenna and a coaxial feed cable to the repeater. The FRP antenna mounts on the repeater's antenna interface and handles outdoor weather exposure. Exact antenna gain, lengths, and connector type follow the shipped configuration — Retevis support can confirm specifics for your order.
The page targets large farms, ranches, construction sites, outdoor events, hunting camps, and open-air theaters, and the description adds logistics and property management. Real inquiries for the RT97L repeater family extend the list to conventions with 22 handhelds and motorsport events needing 3-5 miles of coverage.
Coverage depends on terrain, antenna height, and interference — the product position cites 50+ miles for large farms and ranches with the antenna mounted high and clear line of sight. Concrete, hills, and low antenna placements reduce it. The 25W output and FRP antenna exist precisely to push range where 5W handhelds fade.
Note your RX frequency, TX frequency, offset, and charger type when placing the order. After confirming your custom frequency, customization takes about 4 weeks — and after customization the frequency is fixed and cannot be returned, so verify your licensed pairs with your regulator before ordering.
The repeater runs on a 13.8V supply per the spec table, with RX absorption of 180 mA and TX absorption of 5.5 A. That draw supports fixed-site power supplies and sized solar-battery banks for off-grid deployments.
Two variants: 1 Pack (repeater only, $919.99) for teams that already own antennas and feedline, and 1 Pack + Antenna + Cable ($1,069.99) for fresh installs that need the FRP antenna and coaxial run. If you are mounting on a wall, the included bracket kit applies to both options.
The repeater is customizable within UHF 400-470 MHz and VHF 136-174 MHz to match regional frequency plans. Approval depends on your local regulator: order the unit programmed to a band your license covers, then register per local rules. Support can confirm what is programmable for Sweden, the UK, and other regions before you order.
Both are customizable DMR repeaters. The RT97LD runs 25W with IP66 sealing and AES256-class encryption relay; the RT97P is the 10W full-duplex mini sold with RT81 handheld kits. Choose the RT97LD when coverage area, weather exposure, or encryption lead; choose the RT97P when a handheld-bundled kit is the requirement.
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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.
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