cell phone signal repeater CDMA 850

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Mobile phone signal amplifer Modle : CDMA ST-850 CDMA ST-850mobile 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 ， 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, and all the staff or customers will get great convenience . Specifications of mobile phone signal amplifer CDMA ST-850 Working system CDMA Frequency range uplink: 824-849MHz Downlink: 869-894MHz Gain uplink: Gp≥61dB; Downlink: Gp≥65dB Output up uplink: 25¬¬¬dBm; Downlink: 25dBm Port VSWR ≤1.8DB I/O impedence 50Ω/N connector Noise figure ≤8dB Transmission delay ≤0.5μs Ambient temperature -15～55 Power supply AC/220V±10% 45～55Hz Size 198mm×148mm×39mm 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 1000Sqm Application place of mobile phone signal amplifier ST-450 Small regions signal blind or weak signal area, such as underground or semi-underground place of business ,basements ,underground parking ,etc. small-scale hot-spot signal Complaints areas ,such as conference rooms ,a small supermarket,small shopping malls ,the office and small public areas ,etc. Traffic and large social influence areas ,such as bars ,cafes ,dance halls ,cafes ,fitness clubs ,leisure and entertainment,etc. Elevator ,lift wells in particular ,not in the lift cables laid Home ,office ,luxury yachts ,private cars ,public security system and road safety management ,etc. Features of mobile phone signal amplifer ST-850 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 without the need to adjust the original system and the base station 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)13714313370 Email:szstt002@hotmail.com ADD:buliding 105,Room 505,Liantang industry Louhu distraction ,Shenzhen city

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Shenzhen Sai Tong Tian Electronic Technology Compa

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