SRCommunications SR-D1U UHF 400-470MHz 256 Channels 16 Zone 4 Watt Digital/Analog DMR Portable Radio

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SRCommunications SR-D1U UHF 400-470MHz 256 Channels 16 Zone 4 Watt Digital/Analog DMR Portable Radio

Included items:

  • SRCommunications SR-D1U DMR portable radio
  • Antenna
  • Battery
  • Charging kit
  • Strap

Key features and benefits:

Self-defined Voice Annunciation

The user can directly download voice annunciation of different languages and also zone alert tone to the radio through the PC software based on the actual needs. After powering on, the voice annunciation will automatically switch to the local language.

Compact Size with Clear and Loud Voice

The application of 1W high-power loudspeaker and the technology of advanced digital voice encoding as well as forward error correction make it possible for the user to hear clear and loud voice even in the noisy environment.

Improved Call Capacity with DMO 2-slot.

The feature of DMO 2-slot realizes two group calls on the same frequency at the same time in Direct Mode. The call capacity can be increased without having to apply for additional frequency, thus greatly helping the user to save the cost.

Smooth Transition and Compatibility with Both Analog and Digital Mode

It supports both digital and analog mode, so the user can go on using the existing analog radio to talk to SR-D1U.

Longer Operation Duration

TDMA technology and power-saving feature enable the battery to work longer.

SR-D1U with standard 2000mAH battery can perform for 16 hours to meet the user’s demands on longer operation.

ARC 40-bit Encryption Guarantees Safe Communication

It supports ARC 40-bit encryption, which guarantees communication safety and prevent from being eavesdropped.

Various Digital Signaling

It supports features such as Radio Check, Call Alert, Stun/Revive, Radio Kill, and Remote Monitor, which make radio management easy.

Emergency call, Lone Worker and Man Down (optional).

It supports features including Emergency Call, Lone Worker and Man Down to guarantee user’s safety at all times.

RFID (optional)

Optional RFID does not require manual input/search, greatly improving convenient rental management by easy scanning.



Frequency Range: 136-174MHz, 400-470MHz

Channel Capacity: 256

Zone Capacity: 16

Channel Spacing: 25KHz/12.5KHz(Analog) 12.5KHz(Digital)

Operating Temperature: -30℃~ +60℃

Operating Voltage: 7.5V DC ±20%

Battery: 2000mAH Li-ion

Dimension (with battery, without antenna): 116mm*54mm*31mm

Weight (with battery and antenna): 275g


RF Power Output: 5W/1W(VHF) 4W/1W(UHF)

Frequency Stability: ±1.5 ppm

Frequency Modulation: 16KφF3E/11KφF3E(Analog) 4FSK(Digital)

Antenna Impedance: 50Ω

Modulation Limiting: ±2.5KHz @12.5KHz, ±5KHz@25kHz

Radiated Spurious Emission: -36dBm < 1GHz, -30dBm > 1GHz

Adjacent Channel Power: 60dB@12.5KHz, 70dB@25KHz

FM Noise: 40dB@12.5KHz, 45dB@25KHz

Modulation Distor tion: ≤3%

Audio Response: +1~-3dB

Digital Protocol: ET I TS 102 361-1,-2,-3

Digital Vocoder Type: ABME+2 TM


Frequency Stability: ±1.5 ppm

Sensitivity: 0.25μv@12dB SINAD, -119dBm@5%BER

Adjacent Channel Selectivity: -60dB@12.5KHz,-70dB@25KHz

Intermodulation: -65dB

Spurious Response Rejection: 70dB

Rated Audio Output: 1W@16Ω

Hum and Noise: -40dB@12.5KHz,-45dB@25KHz

Rated Audio Distortion: ≤3% (typically)

Audio Response: +1~-3dB

Conducted Spurious Emission: -57dBm@<1GHz, -47dBm@>1GHz

Block: 84dB