... 80db to 90db, works on any of GSM, DCS, CDMA, PCS and WCDMA system; maintain safe and specific output signal levels ... strength of input signals.4) Cover about 10000-50000m2 without block or obstruct, high efficient fasion radiator, high-performance waterproof chassis ... .7) Available models: C33C-GSM, C33C-CDMA, C33C-DCS, C33C-PCS, C33C-WCDMA C37C-GSM, C33C-CDMA, C33C-DCS, C33C ...