Description

Retevis RT81 High Power Digital Handheld Radio with Earpiece Bundle (4 Pack)

Retevis RT81 is a durable, high-performance digital handheld radio designed for secure communication. With long battery life, crystal-clear sound, and versatile features, it’s ideal for professional security and demanding environments, such as school security and hotel management.

retevis rt81 high power digital handheld radio

Digital/Analog Compatibility

Compatible with both analog and digital modes, the RT81 digital and analog radio combines the benefits of analog reliability with digital advantages like superior performance, longer battery life, and greater energy efficiency—all while reducing equipment replacement costs.

Dual Time Slot

The RT81 DMR radio offers three modes: simplex, repeater, and simplex dual time slot. The dual-time slot mode increases communication efficiency and extends both channel capacity and communication range.

Digital Encryption

The RT81 digital radio offers 10-bit encryption for secure communications, preventing eavesdropping and interference—vital for public safety.

Long Battery Life

With a built-in 2200 mAh battery, RT81 rechargeable radio offers up to 15 hours of operation in analog mode and 25 hours in digital mode, making it ideal for daily use.

High/Low Power Selection

The RT81 DMR handheld radio lets you switch between high power for long range and low power for saving battery life, offering flexibility for different situations. 

Durable Construction

Built to withstand drops and harsh conditions, the RT81’s rugged design offers enhanced fall resistance, making it perfect for demanding security tasks.

Private/Group Calls

The RT81 digital two way radio supports both private and group calls, with customizable IDs and settings (frequency, time slot) to meet different communication needs. 

Crystal Clear Sound

In noisy environments, such as security operations, clear sound is essential. Utilizing advanced DMR voice processing technology, the RT81 delivers exceptionally clear and high-quality audio, eliminating the need for strained communication. 

VOX Hands-Free Operation

The integrated VOX (Voice Operated Exchange) feature enables voice-activated transmission, freeing your hands for other tasks. The included covert acoustic tube earpieces help improve the sound quality and also ensure the call information privacy. 

Spec

Model Retevis RT81
Frequency UHF 400-470MHz
Mode Digital/Analog
Power 10W
Channel capacity 32 Channels (2 zones, 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) 5.48x2.51x1.45in (139x64x37mm)
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

Features

● 32 Channels (2 Zones), 64 Digital Contacts 

● Digital/Analog Double Modes

● Private Call, Group Call, All Call (digital mode)

● Wideband/Narrowband Selection

● TX high/Low Power Selection

● Encryption Function

● Dual Time Slot

● Busy Channel Lockout

● TOT (Time-out-Timer)

● Repeater/Talk Around

● Side Key Programmable

● Battery Saving Mode

● Tail Elimination

● VOX Hands-Free

● Squelch 1~9 Level

● Dual Time Slot

FAQ

RT81 long range DMR radio can reach 3 miles under ideal conditions. But the actual range may be affected by factors like the terrain, obstacles, weather, etc.

Besides RT81 DMR radio itself, RT81's encryption can also be compatible with the encryption of the old version RT50 Waterproof DMR Two Way Radio (10 keys).

es, RT81 DMR digital 2-way radio can work with the RT29 long range analog two way radio in the analog mode. If you want the RT81 to work with the RT29, please ensure they have the same frequency and CTCSS/DCS in the analog mode.

RT81 handheld DMR radio supports the Dual Time Slot, which allows two signals to share the same channel at the same time. One on Time Slot 1 and one on Time Slot 2. They do not interfere with each other and improve frequency usage efficiency, which is especially important in areas with busy communications.

RelevantDocuments

Driver

RT81-USB-Driver
10.76 MB zip

Software

RT81-Programming-Software
3.66 MB ZIP

Manual

RT81-User-Manual
18.22 MB pdf

Brochure

RT81-brochure
1.26 MB pdf

Declaration of Conformity

RT81-EU-Declaration-of-Conformity
439.71 KB pdf

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Availability: In Stock

products.goods.vendor: HVL

products.goods.productType: Caps

$135.00$99.00
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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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