Red De Sistemas Digitales Para Radioaficionados

Retevis RT90 DMR Doble Banda

Ya Venden Por ebay La Nueva Retevis RT90 A Un Precio Que Ronda Los 300€



  1. RT90 supports analog and digital mode, It provides dual band, dual standby, dual display, dual time slot, operating on both 400-480MHz UHF frequencies and 136-174MHz VHF at up to 50 watts VHF and 45 watts UHF.
  2. Using Time-Division Multiple-Access (TDMA) digital technology, AMBE++ vocoder, compatible with Mototrbo and DMR Tier I &II.
  3. The RT90 supports 250 zones, 3000 channel, 10000 contacts, It has built-in CTCSS/DCS, channel scan, priority scan, short text message features, draft message edit, contacts check and edit, and encryption.
  4. RT90 has other function, including Private Call, Group Call and All Call, it also includes Lone worker mode, power save mode, low power alarm, an emergency alarm and VOX capability.


  • Output power: 50W
  • Use TDMA digital function
  • Compatible with Mototrbo Tier I &II
  • Dual band, dual standby, dual display, dual time slot
  • 250 tone, 3000 channel, 10000 contacts
  • Digital mode and Analog mode
  • Single call, group call and all call
  • Emergency function
  • Remote kill/stun/Activate
  • Group match/single match
  • Record function
  • PC programmable function
  • CTCSS.DCS encoding and decoding function
  • PC password protection function
  • Color LCD Display
  • Programmable functional keys
  • Low Voltage prompt
  • Upgradeable by firmware
  • TOT
  • SQL Setting
  • Scanning Function and priority scanning
  • Monitor Function
  • VOX Transmitting
  • Lone Worker
  • Time and zone setting


Frequency Range(MHz) VHF: 136-174Mhz UHF:400-480Mhz
Channel 3000
PLL Channel Spacing 6.25/12.5/25KHz
Voltage Rating DC 13.8V
Operating Temperature -30℃~+60℃
Storage Temperature -30℃ ~+85℃
Dimention 143*50*175 mm
Compatible With American Military Standard (MIL-STD-810C/D/E)


RF Power Output L:25W H:50W (VHF)
L:25W H:45W (UHF)
FM Hum and Noise -40dB @12.5KHz
-45dB @25KHz
Modulation limited

+/- 2.5KHz @ 12.5 KHz
+/-5.0KHz @ 25KHz

Conducted/radiated emission

-36 dBm<1GHz
-30 dBm>1GHz <4GHz

Adjacent channel power

-60dB @12.5KHz
-65dB @25KHz

Audio Response

+1dB ~ -3dB

Audio distortion


FM Modulation


4FSK digital modulation

12.5KHz only date:7K60FXD
12.5KHz date and audio:7K60FXE

Digital protocol

ETSI TS 102361-1,-2,-3

Digital vocoder type


Digital agreement



Frequency stability (-20℃ +60℃,+25℃)


Digital Sensibility

0.3uV/-117.4dBm (BER 5%)
0.7uV/-110 dBm (BER 1%)

Analogue Sensibility

0.35uV/-116dBm(20dB SINAD)
0.22uV/-120dBm(20dB SINAD)

Rated audio


Adjacent Channel Selectivity

TIA603C:60dB@ 12.5 KHz
ETSI: 60dB@12.5 KHz


TIA603C:65 dB

C0-Channel Rejection

12dB @12.5KHz

Spurious Rejection


Audio distortion @ rated audio


FM Hum and Noise

-40dB @12.5KHz
-45dB @25KHz

Audio response


Spurious emission