SKU: DMR-918-20W80

Band 3 + Band 8 900/1800MHz 20dBm Digital Mini Repeater

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The EMTS Telecom Services Dual-Band LTE Digital Mini Repeaters (DMR) provides an excellent solution to the problem of poor signal coverage and is used for coverage extension and in-building applications. The DMR is designed to support signal coverage for three bands: 900MHz and 1800MHz, with up to 2000 sqm covered area. The mini repeater uses an intelligent algorithm to minimize possible uplink interference. It supports multi-operator installations utilizing an advanced digital software-defined filter. The EMTS Digital Mini Repeater isolation detection function allows users to set a suitable distance between donor and service antennas. The easy-to-install feature highlights the DMR as an excellent signal enhancement solution, improving the LTE network's coverage and capacity in dead areas where service is poor or not existing while allowing the operator a fast return on investment.

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

Key Features

  • Supports LTE technology with 20dBm composite power per band
  • Comply with ETSI & 3GPP standards (TS 25.106, TS 36.106, TS 38.104)
  • Software-defined digital filter with up to 3 adjustable blocks in each band
  • Linear power amplification effectively suppresses inter-modulation and spurious emission
  • Auto-isolation check between service and donor antennas
  • Smart mode to auto-adjust gain according to the isolation and signal level received by the donor site
  • Simple installation with external AC/DC adapter
  • User-friendly Repeater GUI (optional 4G modem for NMS application)
Technical Specifications
Specifications
Items Specifications
System (GSM/UMTS/LTE900) LTE1800
WorkingFrequency Uplink: 880~915MHz / 1710~1785MHz / Downlink: 1805~1880MHz
Bandwidth (Digital Filter) (3 Sub-Bands) 3 Sub-Bands
0.2~15MHz Variable 0.2~30MHz Variable
Output Power Uplink: 17±2dBm / 17±2dBm / Downlink: 20±2dBm
Maximum Gain 80±3dB
Manual Gain Control Range 0~30dB (the gain of each sub-band can be adjusted separately)
Automatic Gain Control Range ≥ 20dB
In-Band Ripple ≤±2dB
Spurious Emission 9kHz~1GHz: ≤ -36dBm 1GHz~12.75GHz: ≤ -30dBm
Noise Figure (Typical) ≤ 6.5dB
Group Signal Delay ≤ 6µs
VSWR ≤ 2.4
Impedance at RF connector 50Ω
RF Connector N-Female
Power Supply (External) 100 – 240VAC
Dimensions 280*265*80mm
Weight 7Kg
Alarm Monitoring System Alarm for Uplink Self-Oscillation
Isolation Detection Isolation Check During Boot Time
LED Indicator Power Supply, Alarm, State
Operating Temperature -20 to +50 °C
Application Indoor (IP30)
Mounting Wall Mounting
Local Control Via USB Interface or WIFI
NMS Mode (optional) Via 4G Wireless Modem (Support SMS and Cloud Network Management System)
Conformance Standard Safety: EN 60950 EMC: ETSI 301 489-50, ETSI 301 489-1 Radio: ETSI 301 908-11, ETSI 301 908-15 EMTS Telecom Services is a leading supplier of high-quality RF coverage solutions designed to maximize wireless network areas, office buildings, subways, tunnels and shadowed areas. The EMTS coverage solution supports all major mobile
technologies and standards of wireless Networks.

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