Three types of this 900MHZ GSM Signal Booster/repeater/amplifier:  

CTS-900A Uplink Gp≥55 Downlink Gp≥60

CTS-900B Uplink Gp≥55 Downlink Gp≥60

CTS-900C Uplink Gp≥45 Downlink Gp≥50

Detailed description of this indoor cell phone/mobile phone booster/repeater:

*Frequency range(Mhz): Uplink 890-915Downlink 935-960

*Pass band ripple:≤5dB

*Guard band rejection

 BW-60dB≤104MHzBW-70dB≤107MHz

*Export Power(dBm)(Po) ≥20

*I/O impedance 50Ω/N connector

*Ambient temperature -10⁰C~50⁰C

*Power supply AC110220V±10%   4555Hz