Specifications: TX frequency: 851 / 869 ~ 894 MHz TX frequency : 925 / 935 ? 960 MHz TX frequency: 1805 ? 1930 / 1990 MHz TX frequency: 2100 ~ 2170 MHz Cover interface standards: Digital : IDEN, TDMA, CDMA, GSM, UMTS Analog: AMPS, NMT, N-AMPS, TACS Total output power: Hi 4W (800: 1W, 900: 1W, 1805-1990: 1W, 2100-2200: 1W) Total output power： Low 2W (800: 0.5W, 900: 0.5W, 1805-1990: 0.5W, 2100-2200: 0.5W ) Signal Source PLL synthesized Antennas External Omnidirectional Every band frequency can select output power Hi & Low by Dip SW All the TX frequency covered down link only. Automatic power switching power supply: 50 / 60Hz / AC 100 ~ 240V transmitting to DC 12V. Jamming range: Radius 20 ~ 25 M【the signal must ＜-80dBm in the location】The jamming radius still depends on the strength signal in given area Safety regulation: AC Adapter UL ( E190582 ), CSA ( LR112971 Level 3 ) Dimension: 197(L) ? 186(W) ? 53(H) mm Weight: 1.2Kg ORDERING INFORMATION Model Total Output Power Jamming Range( Radius ) PCB-1000 900mW 8~10 Meters CPB-1000 Hi 4.0W, Low 2.0W 20~25 Meters CPB-2000 Hi 12W, Low 6.0W 40~50 Meters CPB-3000 Hi 32W, Low 16W 50~100 Meters