Using: NPN transistor; Voltage: 11 - 14 V, 180 mA (actual use); Bandwidth: 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 less than 2 dB (60 mA, 50 MHz); Low noise figure 2.3 dB (20 mA, 150 MHz) IP3: 34 dBm; High output power up to 26 dBm; Variable ATT gain 0 - 18 dB Purpose: High IP, low noise RX preamplifier - RX antenna Buffer amplifier Driver amplifier Operating frequency: 0.1 MHz - 60 MHz Power supply: DC 11-14V, 200 mA DC socket: DC-022B, inner core 2.0 mm, round pin Connector: 2 x SMA female (outer thread, inner hole) Material: Aluminum alloy Color: Blue Package Contents: 1 x HF amplifier Only the above package content, other products are not included Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3 cm.