SKU: DMR-71825-20W80

Band 7 + Band 3 + Band 41 700/1800/2500MHz 20dBm Digital Mini Repeater

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The EMTS Triple-Band Digital Mini Repeater is a compact, high-performance signal enhancement solution supporting 4G (LTE) and 5G technologies. It covers 700 MHz (Band 28, FDD), 1800 MHz (Band 3, FDD), and 2600 MHz (Band 41, TDD) frequency bands, making it ideal for improving 4G and 5G coverage in indoor environments. Engineered for intelligent coverage extension, the repeater delivers reliable indoor signal distribution across up to 1500 square meters, efficiently supporting both voice and high-speed data services in low-signal environments such as buildings, underground areas, and commercial zones. This solution is cost-effective, quick to install, and designed to meet modern carrier-grade demands for quality of service and network reliability.

EMTS Telecom Services Ltd. offers a comprehensive portfolio of enhanced coverage solutions for Wireless Networks, in-building coverage. Regardless of the technology or frequency, EMTS can provide customized coverage solutions that address any combination of unique and complex network needs for Wireless Networks.

Key Features

  • 4G/5G Triple-band Repeater (700/1800/2600 MHz) with dynamic digital filtering and gain control for optimal signal clarity, designed to meet the requirements of explosive environment
  • Advanced uplink interference mitigation algorithm ensuring minimal disruption to the macro network
  • Built-in isolation detection system, providing real-time alerts for insufficient antenna separation and preventing feedback loops
  • Support for both FDD (Bands 28 & 3) and TDD (Band 41), enabling flexible deployment in multi-operator or shared-spectrum scenarios
  • Enhanced ICS (Isolation Cancellation System) or IMOP (Intelligent Management of Oscillation Prevention) ensuring stable, oscillation-free performance
  • Remote management via LTE modem with full integration into the EMTS NMS (Network Management System), allowing monitoring, configuration, and alarms
  • Configuration via the EMTS mobile app or C-Type connection, simplifying deployment and tuning
  • Compact, lightweight design with low power consumption and high MTBF, reducing maintenance and OPEX
  • Ideal for 5G dead zones, LTE indoor enhancement, and enterprise-level mobile signal optimization
Technical Specifications
Technical Specifications
Electrical Performance
B28 (700) FDD (B3 (1800) FDD) B41 (2500) TDD
Frequency (Uplink (adjustable)) 703-748 MHz / 1710-1785 MHz / 2496-2690 MHz
Range
Downlink (adjustable) (758-803 MHz) 1805-1880 MHz / 2496-2690 MHz
Number of Sub-bands (1-2) 1-2 / 1
Bandwidth per Sub-band (0.2- 35 MHz) 0.2- 35 MHz / 5-100 MHz adjustable
adjustable adjustable
Max. Gain Uplink: 75±2 dB / 75±2 dB / 75±2 dB / Downlink: 80±2 dB / 80±2 dB
Manual Gain Control 31 dB in step of 1 dB
Automatic Gain Control ≧ 20 dB
Gain Flatness (per sub-band) ≦ ±3.5 dB (peak-to-peak)
Max. Input Power Without Damage 0 dBm
Output Power Uplink: 20±2 dBm / 20±2 dBm / 20±2 dBm / Downlink: 20±2 dBm / 20±2 dBm
Out of Band (2.5≤f_offset_CW< 5.0 MHz) ≤60 dB
Gain
5.0≤f_offset_CW<10.0 MHz ≤45 dB
10.0 MHz≤f_offset_CW ≤35 dB
Spurious (9KHz-1GHz) ≦ -36dBm
Emission
1GHz-12.75GHz ≦ -30dBm
ACRR (±10/20MHz) ≦-36dBc/30KHz
±20/40MHz ≦-40dBc/30KHz
EVM (≦ 6%) ≦ 8% / ≦ 3.5%
Frequency Stability ≦ ±0.01 ppm
Noise Figure ≦ 8 dB
VSWR ≦ 2:1
System Delay ≦ 6 µs EMTS Telecom Services is a leading supplier of high-quality RF coverage solutions designed to maximize wireless network coverage of wireless Networks.
Mechanical Performance
RF Connector 2XN-Female
Power Consumption ≤ 70W
Power Supply (AC to DC) Input AC220V,50/60Hz
Dimensions 330*258*95 mm
Weight ≤7kg
Mounting Wall Mounting
Environmental Performance
Operating Temperature -20 ~ +50 °C
Application Outdoor IP67 ( explosion protection)
Relative Humidity Range ≤95%(non-Condensing)
Control and Indications
LED Indicator Power Supply, Alarm, Running
Local Control Via Type 3 connectivity
NMS Mode (optional) Cloud NMS via 4G Wireless Modem
Complied Standards
Conformance Standard Safety: EN 60950 EMC: ETSI 301 489-50, ETSI 301 489-1, Radio: ETSI 301 908-11, ETSI 301 908-15
3GPP standards TS 25.106, TS 36,106, TS 38.104
CE Comply with CE standard EMTS Telecom Services Ltd. offers a comprehensive portfolio of enhanced coverage solutions for Wireless Networks, in-building coverage. Regardless of the technology or frequency, EMTS can provide customized coverage solutions that address any combination of unique and complex network needs for Wireless Networks.
Figure 1 – schematic diagram of Repeater structure
Figure 2 – schematic diagram of system application scenario
of wireless Networks.

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