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5GNR TDD-3.8GHz Band Selective RF Repeater

5GNR TDD-3.8GHz Band Selective RF Repeater

Model: AT50A37B1

Frequency Range3700 ~ 3800MHz


Output Power37±2dBm

Maximum Gain85±3dB

Product Description

The RF Repeater is designed to provide a more cost-effective solution than adding a new Base Transceiver Station (BTS) to improve signal coverage and communication quality in Radio system. And its easy installation and maintenance can help carrier get fast return.

The repeater is working as a relay between the BTS and mobiles. It receives the low-power signal from BTS via the Donor Antenna, linearly amplifies the signal and then retransmits it via the Coverage Antenna to the weak/blind coverage area. And the mobile signal is also amplified and retransmitted to the BTS via the opposite direction.


1. Aluminum-alloy casing with IP65 protection has high resistance to dust, water and corrosion.
2. Low interference to BTS by adopting linear amplifier with high gain and low noise.
3. Built-in 5G Dynamic TDD Sync Detection Module, automatic completion of 5G wireless network cell search and wireless signaling processing.
4. RJ45 port provides a link to a notebook for local supervision or IP Based NMS (Network Management System) that can remotely supervise Repeater’s working status and download operational parameters to the Repeater Via Ethernet or LAN.



To expand signal coverage or fill signal blind area where signal is weak or unavailable.

1. Outdoor: Airports, tourism regions, golf courses, tunnels, factories, mining districts, villages, …

2. Indoor: Hotels, exhibition centers, basements, shopping malls, offices, parking lots, …

Technical Specification

Frequency RangeUplink3700~3800MHz
Working Bandwidth100MHz
Maximum Output PowerUplink30±2dBm
Maximum Gain85±3dB
Gain Adjustable Range0~30dB/1dB Step
In Band Ripple≤±2.5dB
Spurious Emission9kHz~1GHz: ≤ -36dBm
1GHz~12.75GHz: ≤ -30dBm
EVM≤ 4.5%
Noise Figure ≤ 5dB
Maximum Input Power(Non-Destructive)0dBm
Group Delay≤ 5μs
I/O Impedance50Ω
RF ConnectorN Female(One BTS Port, One MS Port)
Operation Temperature Range-25°C ~ + 55°C
Relative Humidity Range≤ 95% (Non Condensing)
Power SupplyAC 220V, 50/60Hz 
ApplicationIndoor or Outdoor(IP65)

Local Control

Via RJ-45 Interface or WiFi Hotspot 
Remote Mode(Optional)Wirelss Modem(3G/4G), IP Connectivity 
NMS Function(Optional) 

Real-time Alarm for Door Status, Temperature, Power Supply,VSWR, etc;

Remote Control such as Turn On/Off, Increasing/Decreasing Output Power, etc;

Real-time Status for UL/DL Gain, Input/Output Power, All Status of Repeater etc;

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