Name: Retevis RT81 Ham Radio Portable UHF
SKU: 870258

Product Details ＋

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.

RT81 has two modes of digital and analog, 2 regions, select 32 channels,

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.

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

Feature:

Private call, group call, all call in digital mode
Encryption(This function can only be used between RT81 radios)
Wide band/Narrow band selection
Online update
Busy channel lockout
English and Chinese audio prompt
Time out timer
TX high/Low power selection
Read and write by computer
Talk around
Side key programmable
Battery indicator
End-tone elimination
VOX function
Single time slot
Battery save/Low battery alarm
Monitor

Specification:

Model	Retevis RT81
Frequency	UHF:400-470MHz
Mode	Digital/Analog
Power	High Power
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)
Analog sensibility	0.2µV/-120dBm(Typical)
Digital sensibility	0.3µV/-117.4dBm(BER5%)
Digital sensibility	0.7µV/-110dBm(BER1%
Spurious response	TIA03C:65dB
Spurious response	ETSI:65dB
Adjacent channel selectivity	TIA603C:[email protected]
Adjacent channel selectivity	ETSI:[email protected]
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	[email protected]
Spurious emission	<-36dBm@1GHz,>-30dBm
Adjacent channel selectivity	[email protected]
FM modulation mode	12.5KHz:11FOF3E
4FSK digital modulation mode	12.5KHz(data only)7K60FX
4FSK digital modulation mode	12.5KHz(data voice)7K60FX
Modulation limit	[email protected]
Audio response	1dB—-3dB
Rated audio distortion	<=3%
Digital protocol	ETSITSI02361,-1,-3
Vocoder type	AMBE 2TM