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All orders are processed within 1-3 business days after we receive your full payment, excluding weekends and holidays.
As soon as your order is ready, we’ll update the tracking number and inform you of the information. We highly recommend that you register as a Retevis Member here. If the item you ordered is temporarily out of stock, our customer service team will reach out to you. You can choose to wait until the item is back in stock or cancel your order.
Your order will be shipped from China. Also, we have a warehouse in Canada. Therefore, your orders may be shipped from China or Canada Warehouse depending on the availability of the product in our inventory.
Long Range because of High power
Waterproof because of IP67 rating
Clear Voice Because of DMR mode
Secure communications are an essential requirement, especially for public safety applications, RT81 is equipped with 10-bit key data encryption, walkie talkie prevents eavesdropping and avoids interference to ensure secure communication.
Built-in 2200 mAh battery, an operating time of 15 hours in analog mode and 25 hours in digital mode, and is suitable for daily use.
Security personnel typically work in a busy, noisy environment. The sound quality of the walkie-talkie is especially important. Due to the built-in high quality speakers, the DMR walkie-talkie provides better noise cancellation. In a noisy environment, it is possible to communicate with others in better quality.
In the security process, it often happens that the walkie-talkie falls down by running. Therefore, there are certain requirements for the fall resistance of the walkie talkie. A robust shell with stronger protection against falls and earthquakes is more durable.
High power has a longer call range. Low power has a longer battery life. The selection between high and low power can be used flexibly, allowing you to choose the appropriate power in different situations.
For security, it is necessary to communicate. The walkie-talkie supports individual and group call with ID, by setting the frequency, time slot, etc. to meet complex communication requirements.
Since the walkie talkie is compatible with both analog and digital modes. It not only retains the analog radio function, but also has the advantages of digital radio, such as better radio performance and longer battery life, higher energy efficiency, and in the meantime reduces the cost of equipment replacement.
The walkie talkie has three modes: simplex, repeater, and simplex dual time slot. In simplex mode, the walkie talkie communicates in different time slots, which improves communication efficiency. In Repeater mode, the walkie talkie increases the communication distance. Dual Time Slot expands the channel capacity and extends the communication distance.
DMR technology offers six benefits, including doubling the capacity of existing licensed channels, backward compatibility with legacy systems, longer battery life, and increased energy efficiency that improves working efficiency, extends walkie talkie life, and reduces equipment replacement costs.
RT81 high power dual-time radio for rescue, security, Firefighting
Specification:
Model | Retevis RT81V |
Frequency | VHF: 136-174MHz |
Mode | Digital/Analog |
Power | 10W |
Channel capacity | 32(2 Zone, 16 channel per zone) |
Zone | 2 |
Working voltage | 7.4V |
Working temperature | -30℃~+60℃ |
Storage temperature | -40℃~+60℃ |
Continuous working time | Analog:15 hours,Digital:25 hours |
Battery capacity | 2200mAh |
Weight(include battery) | 9.32oz/264g |
Radio size(include battery) | 8.07x6.49x3.34in(205x165x85mm) |
Receiver | |
Channel spacing | 12.5/25KHz(Digital mode 12.5KHz) |
Frequency stability | ±1.0ppm |
Analog sensibility | 0.35µV/-116dBm(20dB SINAD) |
0.2µV/-120dBm(Typical) | |
Digital sensibility | 0.3µV/-117.4dBm(BER5%) |
0.7µV/-110dBm(BER1% | |
Spurious response | TIA03C:65dB |
ETSI:65dB | |
Adjacent channel selectivity | TIA603C:60dB@12.5KHz |
ETSI:60dB@12.5KHz | |
Spurious response suppression | TIA603C:70dB ETSI:70dB |
Receiving spurious emissions | <-57dBm@1GHZ,>-47dBm |
Blocking | 84dB |
Rated audio power | 1W |
Audio response | +1dB—-3dB |
Rated audio distortion | ≤3% |
Transmitter | |
Channel spacing | 12.5/25KHz(Digital mode 12.5KHz) |
Frequency stability | ±1.5ppm |
TX power | Low:1W High:10W |
FM noise | -40dB@12.5kHz |
Spurious emission | <-36dBm@1GHz,>-30dBm |
Adjacent channel selectivity | -60dB@12.5KHz |
FM modulation mode | 12.5KHz:11FOF3E |
4FSK digital modulation mode | 12.5KHz(data only)7K60FX |
12.5KHz(data+voice)7K60FX | |
Modulation limit | 2.5KHz@12.5KHz |
Audio response | +1dB—-3dB |
Rated audio distortion | ≤3% |
Digital protocol | ETSITSI02361,-1,-3 |
Vocoder type | AMBE+2TM |
Note: Specifications will be revised without notice due to technical improvement.
2 x RT81 Waterproof DMR Radios
2 x Li-ion Batteries
1 x Programming Cable
2 x Antennas
2 x Adapters
2 x Chargers
2 x Belt Clips
2 x Lanyards
1 x Manual
All orders are processed within 1-3 business days after we receive your full payment, excluding weekends and holidays.
As soon as your order is ready, we’ll update the tracking number and inform you of the information. We highly recommend that you register as a Retevis Member here. If the item you ordered is temporarily out of stock, our customer service team will reach out to you. You can choose to wait until the item is back in stock or cancel your order.
Your order will be shipped from China. Also, we have a warehouse in Canada. Therefore, your orders may be shipped from China or Canada Warehouse depending on the availability of the product in our inventory.
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