SKU: DMR-1835-20W75

Band 3 + n78 1800/3500MHz 20dBm Digital Mini Repeater

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The EMTS Telecom Services dual-band 1800/3500MHz Digital Mini Repeaters (DMR) offer an excellent solution for addressing poor signal coverage and is suitable for both coverage extension and indoor applications.

This product line repeaters are designed to support dual-band 1800MHz FDD and 3500MHz TDD frequencies, accommodating both LTE and 5G technologies.

Equipped with an intelligent algorithm, the DMR minimizes potential uplink interference and includes an isolation detection function to alert users when the distance between donor and service antennas is insufficient. Its easy installation and friendly GUI make the DMR an outstanding choice for enhancing signal strength, thereby improving the coverage and capacity of LTE/5G networks.

The EMTS DMR enhances mobile network capacity and data coverage in areas with weak signals. It provides a cost-effective solution for indoor signal issues caused by architectural obstacles and signal attenuation. The simplicity of installation and maintenance ensures a quick return on investment for carriers.

The DMR employs advanced digital technology, accessible via EMTS Mobile Apps or a direct USB connection. It features cutting-edge RF technology and digital modules to reduce power consumption and increase the MTBF's reliability, incorporating an IMOP algorithm to prevent self-oscillation, ensuring stable and reliable performance.

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

Key Features

  • Dual-Band with SW-defined filter supporting spectrum reframing
  • Very low NF with an excellent EVM
  • IMOP Support (Isolation Measurement and Oscillation Protection)
  • Supports 4G & 5G (NSA+SA modes) in the same unit
  • 5G sync module ensures precise synchronization with the donor base station
  • Digital bandwidth adjustable with one sub-band at N78 and 3 sub-bands at B3
  • Utilizing intelligent algorithm to prevent UL interference
  • Fully comply with ETSI & 3GPP standards with 20dBm composite power per band
  • User-friendly GUI for the local setting via mobile app. or laptop
  • Setting via EMTS mobile application using Wi-Fi connectivity or via USB
Technical Specifications
Technical Specifications
Electrical Specifications
B3 (1800) N78 (3500)
Frequency (Uplink) 1710 – 1785 MHz (adjustable) / 3300 – 3600 MHz (adjustable)
Range
Downlink (1805 – 1880 MHz (adjustable)) 3300 – 3600 MHz (adjustable)
Number of Sub-bands (1-3) 1
Bandwidth (≦ 75 MHz (adjustable)) ≦ 100 MHz (adjustable)
Max. Gain Uplink: ≧ 70±2 dB / ≧ 70±2 dB / Downlink: ≧ 75±2 dB
Manual Gain Control 31 dB in the step of 1 dB
Automatic Gain Control ≧ 20 dB
Gain Flatness (per sub-band) (≦ ±1.5 dB) ≦ ±2 dB
Max. Input Power Without Damage 0 dBm
Output (Uplink) ≧ 20±1 dBm / ≧ 20±1 dBm
Power
Downlink (≧ 20±1 dBm) ≧ 20±1 dBm
Out of Band Gain (Comply with 3GPP) Comply with 3GPP
Spurious (9KHz-1GHz) ≦ -36dBm
Emission (1GHz-12.75GHz) ≦ -30dBm
ACRR (±20/100MHz) ≦-36dBc/30KHz / ≦-36dBc/30KHz
±40/200MHz (≦-40dBc/30KHz) ≦-40dBc/30KHz
EVM (≦ 8%) ≦ 3.5%
Frequency Stability (≦ ±0.01 ppm) ≦ ±0.01 ppm
Noise Figure ≦ 7 dB
VSWR ≦ 1.8
System Delay ≦ 4.5 µs
RF Connector N-Female
Impedance 50 Ω
Power Supply An external Power Supply AC 90-240 V, 50/ 60 Hz
Power Consumption ≦ 60 W EMTS Telecom Services is a leading supplier of high-quality RF coverage solutions designed to maximize wireless network coverage
of wireless Networks.
Mechanical & Environmental Specifications
Dimensions 200*198*82mm
Weight ≤8kg
Mounting Kit Included Wall / Pall
Grounding kit Included
Operating temperature -20º to +55℃
Standard against dust and water IP40 (optional IP65)
Relative humidity ≤95%
RF connectors N-Type (optional 4.3-10)
MTBF (Mean time between failures) ≥ 150000 hours
Monitoring
Operation Configuration LED Display for status and alarm, PC RJ45Port, Local WIF functionality for easy setting and alarming
Remote Monitoring and Alarm (optional) NMS via internal 3G/4G modem, Supports SMS/SNMP real-time status and alarm reporting Remote configuration
Certification and standards
Standard Comply with CE and ETSI Standards: Safety: EN 60950 EMC : ETSI 301 489-50, ETSI 301 489-1, Radio: ETSI 301 908-11, ETSI 301 908-15 and ETSI TS 136 106 V15.0.0 / ETSI TS 136 143 V15.0.0
Certification CE Comply EMTS Telecom Services Ltd. offers a comprehensive portfolio of enhanced coverage solutions for the Wireless
Wireless Networks.

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