LCD Display GSM990 900Mhz gain 75DB Cell Phone Signal Booster Kit
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GSM-990 Mobile Phone Signal Repeater
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A mobile phone signal repeater provides the ultimate solution in any area where
Cellular communications can not work well due to leak of signals,the repeater
Device features easy installation & operation ,build-in indoor antenna and no
Interferance,it could also improve indoor electromagnetism environments.
Protract cellular battery life and reduce radiation of cellphones.
A mobile phone repeater is ideal for house ,home,office use.
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| Introduction to mobile phone signal repeater |
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Enhance mobile phone signal strength.
Improve communication quality.
Reduce cellphone radiation.
Protract cellular battery life.
Economic building life.
Easy installation.
Build-in power supply.
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| Display device (for reference) |
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The external power supply detecting normal display OK.
Internal power supply detecting normal display OK.
MMIC circuit detects normal display OK.
-50dbm signal input and detection to achieve full displayed.
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| Features: |
High gain ,easy installation and operation.
Full-duplex,singal-port design,build-in power supply.
Use ALC technology ,adjust extent automatically.
LED light working &signal condition indicators.
Big linear power,control intermodulation & scatteration stably.
Dependability stand by GB6993-86 standard.
Compatibility of electromagnetism according with ETS300 609-4. |
| Technique Specifications: |
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| Item |
Specification |
| Up Link |
Donw Link |
| Frequency Range |
890MHz--915MHz |
935MHz--960MHz |
| Output Power |
33DBM ±3dBm |
| Gain |
75Db ±10db |
70Db ±10db |
| Impedance |
50Ω |
| Power Supply |
AC 110/220V (used AC/DC Adapter 12V dc) |
| Seclusion |
>65dB |
| Compact Design |
Indoor Use |
| Item Diemension |
240MM*182MM*22MM |
| Connect Mode |
N connector |
| Ambient temperature |
-10°C~60°C |
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Signal coverage area :
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1.Support Maximum coverage area is 500 square meters. (By adding extra indoor antennas)
( Depend on the area condition)
2.One indoor antenna only use for about 50 square meters.
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Package Contents:
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1 x GSM-990 LCD display signal repeater.
1 x Outdoor Antennal
1 x Indoor Omn i Directional Antenna
1 x Power adapter
1 x Manual
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How Booster/Repeater Works?
Repeaters are designed to fulfill the idea of one and main principle: to fill the areas with
the weak or bad signal and to amplify these low signals in order to provide you with the
communication suitable for you.
The repeater makes the signal stronger in places with poor signal coverage such as:
1) Underground areas: basements, parking lots, tunnels;
2) Other places where cellular signal is shielded by metal or concrete walls:
offices, supermarkets, cinemas, hotels;
3) Places distant from the BTS like private houses.
Steps that describe the work of Repeater.
1) The outside antenna receives the signal from the nearest mobile base station.
2) The outside antenna sends the received signal through the coax cable to
the installed Repeater.
3) The Repeater accepts the low signal and improves it.
4) The improved signal goes to the inside antenna through the connection coax cable.
5) The inside antenna send the improved good signal to your mobile phone.
Installation Approaches:
1) Fix up outdoor antenna reception on housetop
or outside the window and point it to the signal tower.
2) Connect outdoor antenna to “BTS” port in repeater machine through cable.
3) Connect indoor antenna(s) to “MOBILE’ port in repeater machine through cable also.
4) Plug power adapter into AC power socket and finish installation.
