- Outdoor Cellular GSM Repeater - CDMA, GSM, DCS, UMTS, 3G - 0.5W ... with its product as: indoor/outdoor repeater, BTS Extended Coverage System, Jammer, communication power system/charger, antenna, passive part, Connector, RF Jumper ... Pico repeater (Power=20/20/23dBm, Gain=55/60/65dB) outdoor Cellular GSM Repeater 900 / 1800