Features: HighIP, Low Noise RX Preamplifier - RX Antenna; High output power up to 26 dBm; Variable ATT gain 0—18dB; Power supply voltage: 11 - 14 V, 180 mA (actual use) Operating frequency: 0.1 MHz to 60 MHz; Specifications: Material:PCB Size:Approx.6x5cm/2.36x1.97in Frenquency:0.1 MHz to 60 MHz Adopt: NPN transistor Supply voltage: 11 - 14 V, 180 mA (actual use) Broadband: 0.1 MHz to 60 MHz (11 dB @ 150 MHz) Gain: Up to 18 dB Low noise figure 1,2 dB (20 mA 50 MHz) Low Noise Figure < 2 dB (60 mA 50 MHz) Low noise figure 2,3 dB (20 mA 150 MHz) IP3 34dBm High output power up to 26 dBm Variable ATT gain 0 to 18dB Operating frequency: 0.1 MHz to 60 MHz; Power supply: DC11-14V, 200MA Net weight: 36 g Connector: 2xSMA female for head (outer tooth inner hole), Package Includes: 1 x Preamplifier note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.