Build a cell phone jammer circuit - GSM 900 Cellular Phone Signal Repeater Booster + Antenna (70dB)

GSM 900 Cellular Phone Signal Repeater Booster + Antenna (70dB)
GSM 900 Cellular Phone Signal Repeater Booster + Antenna (70dB)
* Application place of mobile phone signal amplifier: 1) Small regions signal blind or weak signal area, such as underground or semi-underground place of business, basements, underground parking, etc. 2) Small-scale hot-spot signal Complaints areas, such as conference rooms, a small supermarket, small shopping malls, the office and small public areas, etc. 3) Traffic and large social influence areas, such as bars, cafes, dance halls, cafes, fitness clubs,leisure and entertainment, etc. 4) Home, office, luxury yachts, private cars, public security system and road safety management, etc. * Specifications: 1) Up-link frequency: 890-915MHz  2) Down-link frequency: 935-960MHz  3) Up-link Gain: 70 dB  4) Down-link Gain: 75 dB  5) Gain adjustable range: MGC≥30dB 6) Output power(dBm): ≥20 7) Pass band ripple: GSM 4dB 8) Guard band rejection: GSM (BW-60dB)≤42 MHz   (BW-70dB)≤45 MHz 9) I/O impedance: 50/N Connector 10) I/O return loss: ≤-10dB 11) Noise figure: ≤-8dB 12) Intermodulation attenuation (Po=13 dBm): ≥40dBc 13) Transmission delay: ≤0.5us 14) Ambient temperature: -10 Degree C ~50 Degree C 15) Power supply: AC110~220V±10%  45~55Hz 16) Size: 200mm*140mm*40mm 17) Product weight: 1.06kg 18) Coverage: approx. 50 square meters indoors. 19) Antenna: 50x8x2.2cm * Characteristic: 1) Fully integrated 900 MHz antenna system 2) Powerful amplifier enables up to + 85 dB of signal gain including cable loss 3) Intelligent signal processing and real time adaptive operation 4) Automatically adjusts power levels as needed to ensure a consistent coverage footprint 5) Reprogrammable (in the field) enabling spectrum or carrier reconfigurations as needed 6) Auto-Trac LED diagnostics displays aid install and operation 7) Patented algorithms and adaptive processing ensure our products will not interfere with other wireless frequencies or radio devices * The package contains: 1) 70dB GSM Cellular Phone Signal Amplifier 2) 13 dB outdoor antenna 3) 3 dB indoor antenna 4) 10m cable 5) Mounting accessories: AC power supply, user manual Specification:  Package Weight One Package Weight 2.05kgs / 4.51lb Qty per Carton 4 Carton Weight 10.00kgs / 22.05lb Carton Size 48cm * 32cm * 32cm / 18.9inch * 12.6inch * 12.6inch

build a cell phone jammer circuit

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