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The EMTS 23 dBm Quad-Band Digital Mini Repeater (MR) offers a cost-effective solution for indoor signal coverage issues caused by weak signal levels, architectural interference, or signal attenuation. Designed for easy installation, this compact repeater helps mobile operators extend coverage with minimal infrastructure investment.
Operating between the Base Transceiver Station (BTS) and mobile devices, the repeater captures the BTS signal through a donor antenna, linearly amplifies it, and retransmits it indoors via a service antenna. This bi-directional process ensures coverage in dead zones and weak signal areas, while also relaying the mobile signal back to the BTS.
Supporting 5G NR, this commercial-grade indoor repeater is built to meet ETSI standards. It supports both TDD and FDD 4G/5G networks and uses advanced synchronization for reliable communication. With built-in IMOP functionality, it ensures stable operation even in challenging RF conditions. The 5GPR boosts capacity and network performance, helping carriers stay competitive in fast-paced 5G deployment environments.
Key Features
- 5G off-the-air Digital Repeater supporting both TDD and FDD; quad-band design enables rapid network deployment across 450, 850, 3500, and 4700 MHz
- Compliant with ETSI TS 138 113 - V15.5.0, delivering up to 23 dBm composite output power
- Integrated digital SDR module allows flexible selection of sub-bands within supported frequency ranges
- Built-in 5G Dynamic TDD Synchronization Detection Module for automatic network search, cell detection, and wireless signaling processing
- Smart Automatic Level Control (ALC) ensures optimal and stable output power
- Auto isolation testing between service and donor antennas; supports IMOP (Isolation Measurement and Oscillation Protection)
- Quick installation using external AC-DC adapter; optional IP67-rated enclosure for harsh environments
- RJ45 port supports local management via laptop or remote supervision through an IP-based Network Management System (NMS), including real-time status monitoring and alarm reporting
- Optional for a design to meet MIL-STD-810G
Technical Specifications
| Electrical Specifications |
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| Electrical Specifications |
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| B31 (450) (B5 (850)) | N78 (3500) / N79 (4700) |
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| Frequency (Uplink) | 452.5– / 824–849 / 3300- / 4400-5000MHz |
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| Range (457.5MHz) | MHz / 3800MHz |
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| (adjustable) (Downlink) | 462.5- / 869–894 / 3300- / 4400-5000MHz |
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| 467.5MHz (MHz) | 3800MHz |
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| Number of Sub-bands (1) | 1 / 1 / 1 |
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| Bandwidth per Sub-band (0.2-5 MHz) | 0.2-25 MHz / 5-100 MHz / 5-100 MHz |
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| (adjustable) |
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| Max. Gain | Uplink: 70±2 dB / 70±2 dB / 70±2 dB / 70±2 dB / Downlink: 75±2 dB / 75±2 dB / 75±2 dB |
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| Manual Gain Control | 31 dB in step of 1 dB |
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| Automatic Gain Control | ≧ 20 dB |
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| Gain Flatness (per sub-band) | ≦ ±2.5 dB (peak-to-peak) |
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| Max. Input Power Without Damage | 0 dBm |
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| Output Power | Uplink: 20±2 dBm / 20±2 dBm / 20±2 dBm / 20±2 dBm / Downlink: 23±2 dBm / 23±2 dBm / 23±2 dBm |
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| Out of Band Gain (2.5≤f_offset_CW< 5.0 MHz) | ≤60 dB |
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| 5.0≤f_offset_CW<10.0 MHz | ≤45 dB |
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| 10.0 MHz≤f_offset_CW | ≤35 dB |
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| Spurious (9KHz-1GHz) | ≦ -36dBm |
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| Emission |
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| 1GHz-12.75GHz | ≦ -30dBm |
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| ACRR (±10/20MHz) | ≦-36dBc/30KHz |
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| ±20/40MHz | ≦-40dBc/30KHz |
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| EVM (≦6%) | ≦6% / ≦3.5% / ≦3.5% |
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| Frequency Stability | ≦±0.01 ppm |
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| Noise Figure | ≦6 dB |
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| VSWR | ≦2.5 |
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| System Delay | ≦8 µs Preliminary |
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| Mechanical & Environmental Specifications |
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| RF Connector | N-Female |
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| Impedance | 50 Ω |
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| Power Supply | Input: AC 100~240 V, 50/ 60 Hz; Output: DC 24 V/ 4.2 A |
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| Power Consumption | ≦ 85 W |
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| Dimensions | 330*258*95 mm |
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| Weight | ≦ 9 kgs |
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| IP Rating | IP67 |
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| Operating Temperature | -10 °C to 50 °C |
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| Monitoring |
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| NMS (Local) | Via USB Type-C |
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| Remote | Via Cloud-based NMS (optional) |
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| Certification and standards |
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| 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 |
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| CE | CE comply |
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| Networks. |
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