Cell Phone Indoor 3G Booster 20dBmLike

FOB Price Get Latest Price ModelKT-3G50 CapableCE,ROHS Min.Order1 Brief DescriptionCell Phone Indoor 3G Booster 20dBm:1,Frequency:WCDMA2100MHz ;2,Coverage :300sqm;3,CE ROHS certified;

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No.of Staffs51 - 100 People Sales VolumeUS$5 Million - US$10 Million Monthly Capacity2000 OEM/ODM AvailabilityBOTH Payment Terms L/C  T/T  Western Union  Paypal  Others Related Product Category Mobile Signal Booster [33]
Product Range Main products

Two Way Radio | Handheld Walkie Talkie | CB Radio | Wireless Repeater | GSM Repeater | Mobile Signal Booster | Telecommunication Antenna

Target Market(s)

North America; Oceania; Southeast Asia; Eastern Europe; Africa(except Middle East); Hong Kong/ Macao/ Taiwan; Latin America; Japan & Korea; Mainland China; Western & Southern Europe; Northern Europe; Central & Southern Asia; Middle East

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Basic Specification

frequency WCMDA2100MHz
output power 20dBm
gain 50dB
coverage 300sqm
Colour Silver
Type Wireless Repeater

Detail Description

3G booster , Cell Phone 3G Booster , Indoor  3G booster

Main features:

1. The consumer repeater is an ideal solution for providing a cost effective improvement in cellular in-building coverage of a home, office, restaurant or building, in the quickest time possible.

2. Manual gain control (MGC) available for both uplink and downlink to adjust the gain value for proper coverage during installation or maintenance.

3. To maintain safe and specific output signal levels and give alarms on self-oscillation, the repeater has built-in AGC and ALC circuits, which can automatically control the gain of the repeater depending upon the strength of input signals.

4. Auto shut off function available for both uplink and downlink to avoid deep self-oscillations from jamming the towers, saving your trouble from operators.

5. Wide band feature enables all devices operating within the wide frequency range of the repeater to see an improvement in performance.

6. Multiple phones and other handheld devices throughout a building can benefit from a wireless repeater.

7. Supports up to (160) users / calls simultaneously.

8. Extended phone battery life. (Your phone does not need to put out as much power due to improved reception.)


Technical Specification:

Electrical specification  



Frequency Range


824 ~ 849 MHz

869 ~ 894 MHz


1850 ~ 1910 MHz

1930 ~ 1990 MHz


824 ~ 849 MHz

869 ~ 894 MHz


880 ~ 915 MHz

925 ~ 960 MHz


1710 ~ 1785 MHz

1805 ~ 1880 MHz


1850 ~ 1910 MHz

1930 ~ 1990 MHz


1920 ~ 1980 MHz

2110 ~ 2170 MHz


1710 ~ 1755 MHz

2110 ~ 2155 MHz

Max .Gain

≥ 65dB

≥ 70dB

Max .Output Power

≥ 15dBm

≥ 20dBm

Band width (-3dB)

Wide Band

MGC (Step Attenuation )

≥ 31dB / 1dB step

Automatic Level Control                            

≥ 15dB, auto shut off after 15dB

Gain Flatness


Tpy ≤ 6dB(P-P); DCS,PCS ≤8 dB(P-P)


≤ 2dB/ 3.84MHz,Full Band ≤ 5dB(P-P)

Noise Figure

≤ 6dB


≤ 2.0

Group Delay

≤ 1.5μs

Frequency stability

≤ 0.01ppm

Spurious Emission &
Output inter-modulation

GSM Meet  ETSI TS 151 026 V 6.1.0

WCDMA Meet 3GPP TS 25.143 ( V 6.2.0 )

CDMA Meet  IS95 & CDMA2000

WCDMA System

Spurious Emission Mask

Meet 3GPP TS 25.143 ( V 6.2.0 )

Modulation Accuracy

≤ 12.5%

Peak Code Domain Error

≤ -35dB@Spreading Factor 256

CDMA System


ρ > 0.980


Meet IS95 & CDMA2000

LED  Alarm


Power LED

Power Indicator

ALC LED 1 --Low frequency Band

Orange @ ALC 1~5dB, Red @ ALC 15dB~20dB,

LED off after 5 seconds red color

ALC LED 2 --High frequency Band

Orange @ ALC 1~5dB, Red @ ALC 15dB~20dB,

LED off after 5 seconds red color

Mechanical  Specifications


I /O Port



50 ohm

Operating Temperature


Environment Conditions





≤ 3Kg

Power Supply

Input AC90~264V,output DC12V / 3A



Installation Approaches:
Fix up outdoor antenna reception on house tip and point to signal tower.
Connect outdoor antenna to " outdoor " port in repeater machine through cable.
Connect indoor antenna to " indoor : port in repeater machine through cable also.
Plug power adapter into AC power socket and finish installation.

Technique supporting:
If still no signal receipt after activated repeater, please check if outdoor antenna point to signal tower or elsewhere have strong signal and check if strength achieve - 70 DBM.
If can not call out, please adjust the direction of outdoor antenna.
If strength is not steady, please check if outdoor & indoor antennas are too close.
Please ensure the outdoor and indoor antenna have distance of 20 meters at least, with a between and not in a same horizontal line.


Step 1 Start by taking your phone up to the roof or other location outside to find where the signal is strongest.

Step 2  Temporarily mount the Outdoor (outside) antenna in that location. You may need to adjust and move the antenna later. More notes on Donor antennas here.

Step 3  Run coaxial cable into the building to a convenient loaction (attic, etc.) where you can also get standard power for the Signal Repeater.

Step 4  Place the Signal Repeater in that location and connect the coaxial cable to the Outdoor Side of the Signal Repeater and the Outdoor antenna.

Step 5  Mount your Indoor (inside) antenna in a productive location. You may need to adjust or move the antenna later. More notes on Indoor antennas and patterns here.

Step 6  Connect coaxial cable between the Indoor antenna and the Signal Repeater output port.

Step 7   Power up the system and check for signal inside the building. If needed, tune system by moving and or pointing the Outdoor and Indoor antennas until they get the most signal possible.

Step 8  Secure all antennas and cables, securely mount the Signal repeater and clean up the installation.

Of course there are still a few more things to consider but in general, this is the basic procedure. For more information, please contact us.

Booster Application.1.JPG

Additional Information

Payment Terms L/C, T/T, Western Union, Paypal
Minimum Order 1
Lead Time Delivery Time 10 days
Sample Available Yes Ask For Sample
Delivery Details 10~15days after received advanced payment;
FOB Port Shenzhen
Loading Info We offer as many shipping options as possible, including DHL, UPS, TNT, Fedex and EMS
Packing Info Strong cartons lined with safety foam;
Target Market(s) Africa(except Middle East),  Central & Southern Asia,  Eastern Europe,  Hong Kong/ Macao/ Taiwan,  Japan & Korea,  Latin America,  Mainland China,  Middle East,  North America,  Northern Europe,  Oceania,  Southeast Asia,  Western & Southern Europe

About Us

Quanzhou Kingtone Optics & Electronics Technology Co., Ltd.

Established in 2006, Kingtone is a high-tech enterprise specialized in developing, producing and selling wireless communication equipments and microwave functional module, such as Repeater for cell phone network, Mobile phone Jammer ,Handheld Transceivers, Vehicle Radio,Marine Radios etc.. Located in Quanzhou City of Fujian Province, we enjoy comfortable environment and convenient transportation. Covering an area of 1710 square meters, our factory is equiped with cutting-edge spectral analyzer, network analyzer, noise figure meter and signal generator, and operating under strict QC guidelines to guarantee high-quality products at competitive prices. We also deal in high-quality alarm system. Our products conform to international standards, such as CE, GS, CE, EMC, UL and CSA. Meanwhile, OEM and ODM orders are welcome. We are sure that our high quality products and excellent services will be appreciated by the growing list of satisfied customers. Contacting us is the first step to build long and successful business relationships with us.

General Information

Year of Establishment 2006
Capital US$501 Thousand - US$1 Million
Sales Volume US$5 Million - US$10 Million
Brand Name Jimtom

Export Information

Export Year 2010
Export Percentage 11% - 20%
Delivery Time 15 days
Minimum Order Quantity 2
Payment Terms L/C  T/T  Western Union  Paypal  Others

Productivity Information

Production Lines 8 lines
Factory Size 1710 square meters square meters
Monthly Capacity 2000
Investment on Manufacturing Equipments US$501 Thousand - US$1 Million
No. of Staffs 51 - 100 People
No. of R/D Staffs 5 - 10 People
No. of Engineers 21 - 30 People
No. of QC Staffs 5 - 10 People