High Power DMR Radio Retevis RT81 Powerful Walkie Talkie IP67 Waterproof UHF VHF VOX Encryption Long Range 2 Way Radio Hunting/Hiking

Feature:

1. 1.Enter the digital age in style with the Retevis RT81 DMR Digital Portable Two Way Radio, The RT81 offers amazingly clear, full quieting digital voice communication.

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3. 2.RT81 has two modes of digital and analog, 2 regions, select 32 channels, It uses digital mobile radio(DMR)Tier 2 standard protocol.It is compatible with the popular series Tier I and II .

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5. 3.RT81 after strict waterproof and dust test,IP67 waterproof and Dustproof, Strict shell structure and material, so that the use of RT81 in a complex environment to ensure the normal use of radio.

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7. 4.High power, RT81 equipped with high power emission, Center frequency point test 10W power, increase the communication distance.

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Tips:

Click the picture below to download the driver of USB programming cable,programming software and firmware. Any questions, please be free to contact us.

IP67 Waterproof & Dustproof

DMR Standards Compliant

RT81 is compatible with digital and analog signals,each channel can define one of the modes for use,making it possible to seamlessly upgrade latest DMR digital communication and save cost.

Rugged & Durable

RT81 waterproof two way radio is built durably and ruggedly for withstanding shock; vibration;dust and harsh weather conditions such as snow and rain.

Single Call/Group Call/All Call

Imagine a company with a large organization, with more than 20 employees and 2-5 departments, where communication between different departments needs to be uninterrupted, you can rely on the group calling feature. If you want one-to-one call, you can rely on the single call feature.

2200 mAh Li-ion Battery

2200 mAh high capacity li-ion battery, provides longer standby time,which guarantees your long distance long time transmit.

Digital Encryption

Digital voice encryption function avoids frequency or channel crossing and exterior signal interference or eavesdropping,ensuring a safer and clearer communication for you.

Crisp and Clear Voice

Built-in up-to 1w power loudspeaker,adopting AMBE+2TM vocoder type,RT81 can give you clear and loud voical transmission anytime and anywhere.

VOX Hands-free Operation

You can connect one headset to RT81 walkie talkie to enjoy a better hands-free and talking experience,such as rescue, moving something,riding a bike,and other situations when your hands are occupied.(Headphones are optional accessories).

Dual Capacity Direct Mode

Dual time slot,two sets of calls can be performed at the same time at the same frequency.

VHF or UHF Frequency Band Optional

RT81 is single frequency band. VHF(136 - 174MHz), or , UHF(400 - 470MHz).Please choose VHF or UHF based on your using requirement.

RT81 is suitable for holiday resort,rail transportation,factory,traffic management,hospital,security,etc.and hard wet working environment, which can provide huge convenience and efficiency to your work.

Package Includes:

 

Standard Package for 1pc:

1 x Retevis RT81 / RT81V Two Way Radio

1 x Li-ion battery

1 x Antenna

1 x Adapter

1 x Charger

1 x Belt clip

1 x Sling

1 x User manual

 

Standard Package for 2pc:

2 x Retevis RT81 / RT81V Two Way Radio

2 x Li-ion battery

2 x Antenna

2 x Adapter

2 x Charger

2 x Belt clip

2 x Sling

2 x User manual

 

Optional Accessories:

Programming cable (optional)

Speaker Microphone (optional)

Specification:

Model	Retevis RT81
Frequency	UHF 400-470MHz , or , 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°C—+60°C
Storage temperature	-40°C—+60°C
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)
Reveiver
Channel spacking	12.5KHz/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 spacking	12.5KHz/25KHz(Digital mode 12.5KHz)
Frequency stability	±1.5ppm
TX power	Low:5W 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

The contrast between RT81 and RT50:

Picture
Model	RT81	RT50
Type	DMR Digital/Analog Two Modes	DMR Digital/Analog Two Modes
Frequency range	UHF 400-470MHz	UHF 400-470MHz
Power	10W（Low:1W  High:10W）	10W（Low:5W  High:10W）
Channel	32	198
Channel zone	2 zones,16 CH/zone	2 zones,99 CH/zone
IP67 Waterproof	√	√
Channel knob	√	√
Hidden Screen	×	√
Digital protocol	ETSITS102361-1,-1,-3	ETSITS102361-1,-2,-3
Tier Ⅱ	√	√
Work mode	Direct / Relay	Direct /Relay /Double slot(DCDM)
Time slot	Single / Time slot 1	Dual / Time slot 1 & 2
Color code	0-15	0-15
Contacts	64	200
RX Group Lists	√	√
Antenna connector	SMA-M	SMA-M
Audio connector	Compatible with Kenwood 2Pin	Compatible with Kenwood 2Pin
Usable Programming cable	C9018A / C9055A	C9018A / C9055A
VOX	On / Off for all channels	On / Off for specific channels
Scan	×	√ (Scan List)
2 tone/5 tone signal	×	√
1750 Hz signal	√	√
TOT	√	√
Scrambler（Analog )	×	√
Compander（Analog )	×	√
Encryption(Digital)	√	√
One key call	×	one key call
On Ground Alarm	×	√
Tail Eliminate	×	√
Roger	×	√
Talk Permit Tone	×	√