Greetwin 4G 20dBm Signal Booster B8 B3 B1 B20 4 Band Mobile Phone Signal Repeater

Min.Order: 1
Product origin: Shenzhen, Guangdong, China
Infringement complaint: complaintComplaint
US$ 314.3 ~ 323.9

Description

Specification

Uplink

Downlink

Frequency

LTE800832-862MHz791-821MHz
GSM900890MHz-915MHz935MHz-960MHz

DCS1800

1710MHz-1785MHz

1805MHz-1880MHz

WCDMA2100

1920MHz-1980MHz

2110MHz-2170MHz

Operation BandwidthWide Band

Gain

≥65dB

≥70dB

Output Power

≥18dBm

≥20dBm

MGC (Manual Gain Control)

31dB Range/1dB step

Ripple in Band

8dB

Noise Figure

≤ 6dB

VSWR

≤2.0

Automatic Level Control

25dB

Intermodulation Products

≤ -40dBc

Spurious Emission

9KHz~1GHz

≤ -36dBm/30KHz

1GHz~12.75GHz

≤ -30dBm/30KHz

Frequency stability

≤ 0.01ppm

MTBF

> 50000 hours

Time Delay

≤1.5μs

Impedance

50Ω

Power Supply

Input: AC 110~240V; Output: DC 10V/6A

LED Alarm

Power LED

DC ON/OFF

Smart LED

Smart function ON/OFF

AGC Alarm

Alarm RED when ALC 5dB-10dB

ISO Alarm

Alarm RED when ALC 20dB-25dB,

Then Repeater will Auto Shut Down.

Auto restart after two minutes.

Mechanical Specification

RF Connector

N-Female

Power Consumption

25W

Operating Temperature

-10ºC~ +55ºC 

Environment Conditions

IP40(Indoor)

Installation Type

Wall Installation

Dimensions (D x W x H )

400*170*65mm

Weight

≤ 7 KG

 






 

 

    Q1. Why is there still no signal after installing the equipment?

            1. Check the power on the booster and power supply.

            2. Check the connector of the outdoor antenna is tight or not.

            3. Check the connectors of the RF cable are tight or not.

            4. Check the outdoor signal is strong enough or not.

            5. Check to make sure the antenna is installed correctly.

            6. Check the connector of the indoor antenna is tight or not.

            7. Check the cable type is suitable or not.

 

      Q2. Why the signal strength is too weak on the edge of the area?

            1. Check the outdoor signal and antenna direction.

            2. Check booster is full gain or not.

            3. Check all of the connectors are tight.

            4. Change the location of outdoor/indoor antenna.

            5. Check the cable type is suitable or not.

            6. Deploy more indoor antennas.

 

      Q3. After running booster, why the signals are not stable?

            1. Checking the distance between donor antenna and server antenna are too close to each other? Check LED of the booster to make sure alarms are green.

            2. Checking the signals from donor antenna whether to be stable or not?

            3. Connect the system again if it is incorrect connection.

 

      Q4. Why the booster power LED is not bright?

            1. Checking the input AC power range indicated on power adapter whether is corresponding to the local

power system.

            2. Checking the power adapter whether connect the equipment correctly and stably or not.

            3. Checking the power adapter whether damage or not. To test output voltage whether be corresponding to

that indicated on power adapter or not by multimeter

 




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