SKU: DMR-1821-20W85

Band 1 + Band 3 1800/2100MHz 20dBm Digital Mini Repeater

Download Datasheet (PDF)

The EMTS Telecom Services Ltd. dual band 1800/2100MHz Digital Mini Repeaters (DMR) provides an excellent solution to poor signal coverage and is used for coverage extension and in building applications. The DMR is designed to support signal coverage for dual-band 1880/2100MHz with up to 2000 sqm covered area, supporting both LTE and WCDMA technologies. The DMR has an intelligent algorithm to minimize possible uplink interference at the same time, the isolation detection function allows users to be alerted when the distance between donor and service antenna is not enough. The easy-to-install feature highlights the DMR as an excellent solution for signal enhancement, improving coverage and capacity of the LTE/WCDMA and possibly 5G networks sat dead areas where service is poor. The EMTS Digital mini Repeater also enhances the mobile network's capacity and the data coverage in areas with limited signal strengths. It provides an affordable solution for indoor signal coverage problems due to signal fading and attenuation caused by architecture obstacles. It's easy installation and maintenance can help carriers get a fast return on investment. Setting the sub-bands using advanced digital technology is done via EMTS Mobile Apps or direct connection via USB cable. The DMR is based on the latest technology using advanced RF technology and digital modules that reduce power consumption, increase the reliability and the MTBF. The DMR can be connected to EMTS NMS via an LTE modem for remote monitoring and control. The repeater supplied with up to 90dB gain with an advanced IMOP algorithm to prevent self-oscillation.

EMTS Telecom Services Ltd. offers a comprehensive portfolio of enhanced coverage solutions for the Wireless Networks.

Key Features

  • Advanced Digital Filtering Technology with up to 30MHz tuning range per band
  • Dual-Band with Software-defined filter supporting spectrum reframing
  • Very low NF with an excellent EVM reduces the uplink noise to Base-Station
  • IMOP Support (Isolation Measurement and Oscillation Protection)
  • Supports WCDMA & LTE (optional: 5G) in the same repeater
  • Fully comply with ETSI & 3GPP standards with 20dBm composite power
  • Linear power amplification to effectively suppress inter-modulation and spurious emission minimize possible uplink interference
  • User-friendly GUI for the local setting via mobile app or laptop
  • Setting via EMTS mobile application using Wi-Fi connectivity or via USB
  • Optional for remote control and alarm via 4G modem using EMTS NMS
Technical Specifications
Technical Speciications
System (LTE1800) UMTS/LTE2100
Frequency Range Uplink: 1710 to 1785MHz / 1920 to 1980MHz / Downlink: 2110 to 2170MHz
Bandwidth(Digital Filter) (1 Sub-Band) 1 Sub-Band
0.2-30MHz Variable 0.2-30MHz Variable
Maximum Output Uplink: 18±2dBm / 18±2dBm / Downlink: 20±2dBm
Maximum Gain 85±3dB
AGC Range ≥ 20dB
MGC Range 0~30dB@ Step of 1dB
In-Band Ripple(Typical) ≤ ±3dB
VSWR ≤ 2.0
Noise Figure ≤ 6dB
System Delay ≤ 8μs
EVM ≤ 8%
Spurious Emission 9kHz~1GHz: ≤ -36dBm 1GHz~12.75GHz: ≤ -30dBm
I/O Impedance 50 Ω
RF Connector 2XN- Female
Power Supply Input: AC100~ 240V
Power Consumption ≤ 50W
Dimensions 318*265*68mm
Weight ≤7 kg
Alarm Monitoring System Alarm for Uplink Self-Oscillation
Isolation IMOP Support (Isolation Measurement and Oscillation Protection)
LED Indicator Power Supply, Alarm, State
Operating Temperature -20 to +50 °C
Application Indoor
Relative Humidity Range ≤95%
Mounting Wall Mounting
Local Control Via USB Interface or Wi-Fi
Remote Mode(Optional) Cloud NMS Via 4G Wireless EMTS Telecom Services is a leading supplier of high-quality RF coverage solutions designed to maximize wireless network coverage in
Networks.

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