900Mhz GSM full band signal amplifier cell phone booster

This 900Mhz GSM full band signal amplifier to increase GSM frequency up to 2000 square meters,support uplink 850~915MHz and downlink 935~960MHz. Specifications of 900Mhz GSM full band signal amplifier cell phone booster:
Frequency range:
Uplink: 890—915MHZ
Downlink: 935-960MHz
Gain ( dB)
Uplink: Gp≥45
Downlink: Gp≥50
Export power (Po): ≥10dBm
Pass band ripple: ≤3dB
Guard band rejection:（BW-60dB）≤42MHz ,（BW-70dB）≤45MHz
I/O impedance: 50Ω/N connector
I/O return loss: ≤-3dB
Noise figure: ≤4dB
Intermodulation
Attenuation(Po=10dBm): ≤-40dBm
Transmission Delay: ≤0.5μs
Ambient temperature: -10℃～60℃
Power supply: AC110～220V 45～55Hz
Size: 220 x 140 x 40 mm
Reliability: To the GB6993-86 standard
Electromagnetic
compatibility: To the ETS300 694-4 standard
Function
a) Power supply LED denote
b) Export power LED denote
coverage area: 300 m2, 600m2, 1000m2, 2000m2 for selections