GSM型助推器的流动信号转发的电话的迹象

GSM full band signal repeater Specification GSM950Frequency range Uplink890—915MHZ Downlink935-960MHz 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) ≤-40dBc Transmission Delay ≤0.5μs Ambient temperature -10°C～60°C 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 area200 m2