DTR223-2MR

[DTR223] Digital UHF Wireless Receiver -2 Channel [2026 MR]

Model: DTR223-2MR-5359$85.00
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Introduction

A excellent digital UHF receiver to suitable for meeting room.

  • Code: MR (MeetingRoom).
  • Based on the DT220 TECH PLUS platform.  
  • Optional model 530-590Mhz / 640-700Mhz, with two ways frequency band filters in the circut.
  • Optional model for 2 Channels / 4 Channels

  • All excellent parameters to match the requirements from performance scenarios.

    • SN > 105dB.
    • Dynamic Range > 105dB.
    • Floor Noise Voltage < 20uV.
    • Frequency response : <3dB (20 ~20KHz)
    • Cross mode ture Diversity.

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  • Not Supports Acoustics Measurement.

Parameters
Product NameDigital UHF Wireless System -2CH/4CH Receiver [MR Meeting Room]
ModelDTR223-2MR-5359/6470
DTR223-4MR-5359/6470
Communication ModeDigital Audio UHF Wireless Communication
Technology PlatformDT240 TECH
Modulation MethodPSK
Carrier Frequency530~590MHz / 640-700MHz
, Varies by Region
Sampling Rate48K
Wireless Transmission Distance/
Sensitivity>-96dB
Distortion＜0.03%（@1KHz）
Frequency Response20Hz~20KHz
Frequency Response<3dB(@off); <3.5dB(@24V): <4.5dB(@48V)；
Delay4.17ms
Maximum Concurrency30CH/100Mhz Band
Bite Number24Bit
Effective Bite Number18Bit
Signal-To-Noise Ratio>105dB
Dynamic Range>105dB
Background Noise<20uV
Number Of CH2CH / 4CH
Effective Transmission Distance2ANT Cross Backup True Diversity (Cross Backup)
Effective Transmission Distance80M
(Depending on Radio Environment & Configuration)
AntennaWhip Antenna (External)
ScreenOLED Full-Color Screen
Powered By2CH : DC 12V&1A 5W
4CH : DC 12V&1A 10W
Power Interface5.5mm Port
Weight2CH : 2050g (Excluding Antenna)
4CH : 2150g (Excluding Antenna)
Size2CH : 480mm*200mm*45mm (1U)
4CH : 480mm*200mm*45mm (1U)
ColorBlack
MaterialCast Iron
Storage Temperature-5°C ~ 45°C (and Battery Related to)
Other Functions-15°C ~ 45°C (and Battery Related to)

This device does not support OTA upgrades. If a firmware update is needed, please contact your local dealer or email sales@infosvc.biz.

Manual

1.1_Manual_CN&EN_GAODIMIC（DTR223-&-DT248R）Digial-UHF-Wireless-Receiver-2025.05.15.pdf (1.47 MB)

Other

Comparision-of-old-and-new-RX-models.pdf (157.56 KB)
GAODIMIC-Logic-between-CH-and-ANT-BNC-Port-for-DTR223-&-DT248R---2026.05.25.pdf (250.48 KB)

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