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The EMTS Telecom Services 450MHz Mini Repeaters (MR) provide an excellent solution to the problem of poor signal coverage for coverage extension and Outdoor & In-Building applications. The MR is working as a relay between the BTS and mobiles. It picks up the signal from BTS via the Donor Antenna, linearly amplifies it, and then retransmits it via the Indoor Distribution Antenna System (DAS) to the weak/blind coverage area. The mobile signal is also amplified and retransmitted to the BTS via the opposite direction. The EMTS repeater also improves the network capacity by allowing better data coverage in areas with limited signal strengths. A coaxial cable connects the MR to an outdoor 'donor' antenna. The donor antenna transmits signals from mobile phones and receives signals from the BTS. Easy installation, lightweight design, and friendly GUI make the MR a cost-effective and practical solution for extending signal coverage. The EMTS Mini Repeater series can support all combinations of frequencies, including LTE, WCDMA (and optional 5G) 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
- High system gain, with the full-duplex design
- 20dBm downlink & uplink composite power
- Fully comply with LTE, & WCDMA standards
- Modern design based on reliable SAW filtering technology
- Automatic Level Control (ALC) ensures output level is stable
- Linear power amplification to effectively suppress inter-modulation and spurious emission with Extremely high reliability (MTBF more than 15 years)
- Unique color LEDs to indicate power supply and state and Alarm
- Simple installation with an external AC/DC adapter
Technical Specifications
| Electrical Specification |
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| Frequency Range | Uplink: 452.5-457.5 MHz / Downlink: 462.5-467.5 MHz |
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| Gain | 75dB |
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| Uplink/Downlink composite Output | 20dBm |
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| Power |
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| AGC control range | ≥30dB |
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| Maximum Input Power (Non- | ≤0dBm |
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| destructive) |
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| In-Band Ripple | +/- 1.5 dB |
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| VSWR | 2:1 |
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| Group delay time | ≤ 5μs |
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| EVM | <8% (optional<3.5%) |
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| Noise Figure | ≤6dB |
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| Third-order Inter-Modulation | ≤ -40dBc |
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| Out of Band (±400KHz) | <50dB |
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| Gain (±600KHz) | <40dB |
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| ±1MHz | <35dB |
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| ±5MHz | <25dB |
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| Intermodulatio (9kHz~1GHz) | ≤ -36dBm/30kHz |
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| n Products (1GHz~12.75GHz) | ≤-30dBm/30kHz |
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| Spurious (9kHz~1GHz) | ≤ -36dBm/30kHz |
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| Emission (1GHz~12.75GHz) | ≤-30dBm/30kHz |
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| RF Connector | N-Type (Female) |
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| Power Consumption | ≤ 35W |
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| Power Supply | Input AC100 to 240V, output DC9V 5A |
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| Dimensions | 265*188*68mm |
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| Weight | ≤ 5kg |
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| Alarm Monitoring System | Alarm for uplink self-oscillation |
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| Indication LED | Power supply, Alarm, state |
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| Operating Temperature | -20 to +50 °C |
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| Application | Indoor (IP40) |
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| Humidity | ≤95% |
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| Conformance Standard | Safety: EN 60950, EMC: ETSI 301 489-50, ETSI 301 489-1, Radio: ETSI 301 908-11, ETSI 301 908-15 |
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| 3GPP standards | TS 25.106, TS 36,106, TS 38.104 |
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