... -Band signal repeater/amplifier ItemLM-G/D/W-20AFrequency Range (Mhz)Uplink: 890-915MHz, 1710-1785MHz, 1920-1980MHz Downlink: 935-960MHz ... Conection 3 in One! three frequency bands 900/1800/2100 MHz mobile signal booster,umts gsm dcs receiver,indoor/ outdoor booster ...