Modle : GSM ST-990

GSM ST-990 mobile phone signal amplifer/booster/repeater, make you keep in touch with others smoothly in everywhere

Products instruction

Cell phone signal amplifier is a products designed to solve the mobile phone  blind signal. As the mobile phone signal is transmitted by electromagnetic waves to establish a communications link, the building of the barrier, in some tall buildings inside, the basement of some places such as malls, restaurants, places of entertainment such as karaoke OK sauna and massage, underground civil air defense projects, subway stations and many other places where cell phone signals can not reach and can not use the phone. Cell phone signal amplifier can solve these problems in a particular place as long as the installation of a mobile phone signal amplifier system, the entire range of mobile phone signals can be well used, staff or customers will get great convenience .

Specifications of mobile phone signal amplifer GSM ST-990

Working system      GSM

Frequency range      Up link:890～915MHz   Downlink: 935～960MHz

Gain                uplink: 73dB           Downlink: 66 dB

Export power        uplink: 33­­­dBm; Downlink: 26dBm

Pass bank ripple      ≤1.8DB

I/O impedence         50Ω/N connector

Noise figure          ≤6dB

Transmission delay    ≤0.5μs

Ambient temperature   -15℃～55℃

Power supply         AC/220V±10%   45～55Hz

Size                 305mm×220mm×67mm

Reliability            To the GB6993-86 standard

EMC                To the ETS300 694-4 standard

Function              a)         Power supply LED denote  b)     Export power ELD denote

Coverage area        2500Sqm

 

 

Application place of mobile phone signal amplifier GSM ST-990

A Small regions signal blind or weak signal area, such as underground or semi-underground place of business ,basements ,underground parking ,etc.

B small-scale hot-spot signal Complaints areas ,such as conference rooms ,a small supermarket,small shopping malls ,the office and small public areas ,etc.

C Traffic and  large social influence areas ,such as bars ,cafes ,dance halls ,cafes ,fitness clubs ,leisure and entertainment,etc.

D Elevator ,lift wells in particular ,not in the lift cables laid

E,Home ,office ,luxury yachts ,private cars ,public security system and road safety management ,etc.

 

 

Features of mobile phone signal amplifer ST-990

A High-gain linear power amplifier

B ALC technology .

C Ultra-low noise receive amplifier

D There is no interference to the base station , after the opening the original system and the base station without the need to adjust parameters ,

E,Stable and reliable electromagnetic compatibility design .

F The base station dose not cause an increase in background noise ,but will not lead to a decline in the quality of the base station communications

G With full-duplex communication mode .

H dispel the heat effective reasonable ,the structure is esthetic ,the volume is suitable .

 

 

Company Name : Sai Tong Tian technology Company ltd .

Contact person :ycho

Tel :86(0)15879796987

ADD:buliding 105,Room 502,Liantang industry Luohu district ,Shenzhen city

Can be used for CDMA/GSM/DCS system;

◆Gain can be adjusted as required;

◆Ultra-low noise receive amplifier

◆There is no interference to the base station , after the opening the original system and the base station without the need to adjust parameters ,

◆Stable and reliable electromagnetic compatibility design .

◆The base station dose not cause an increase in background noise ,but will not lead to a decline in the quality of the base station communications

◆With full-duplex communication mode .

◆Dispel the heat effective reasonable ,the structure is esthetic ,the volume is suitable .