... GSM850, GSM900, DCS, PCS; CDMA450,CDMA800, CDMA1900, CDMA2000, WCDMA2100 and AWS5.The repeater gets quite comprehensive functions:1) Intermediate SAW ... proper coverage duringinstallation or maintenance3)To maintain safe and specific output signal levels and give alarms on self-oscillation, the repeater ... or indoor wide band panel antenna 7dBi gain. Signal Link Brand, GSM repeater, 20dBm power, S20A-DB