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Specialize in Signal Repeater & Jammer R&D and manufacturing since 2006

Factors Determining Coverage Performance of Installed Mobile Repeaters

1. Donor Signal Quality

Input Signal Strength: Optimal range (-50dBm to -80dBm). Weak signals cause low SNR, while strong signals may trigger oscillation.

Base Station Distance: <5km recommended for stable uplink/downlink balance.

Factors Determining Coverage Performance of Installed Mobile Repeaters 1

2. Antenna System Configuration

Isolation: Must exceed repeater gain by ≥15dB to prevent feedback loops.

Antenna Patterns: Directional donor antennas reduce interference; omni/sector antennas affect coverage shape.

Factors Determining Coverage Performance of Installed Mobile Repeaters 2

3. Propagation Environment

Building Materials: Concrete walls attenuate signals by 15-25dB versus glass.

Terrain: Urban canyons require 3-5dB higher gain than open areas.

4. Repeater Specifications

Gain Settings: Over-amplification causes intermodulation distortion.

Noise Figure: <6dB NF critical for rural deployments.

5. Installation Compliance

Cable Loss: 30m of 1/2 coaxial cable loses ~3dB at 2GHz.

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