20 dB Sloped Inline Amplifier features Low Noise, DC Pass, Reliable Gain and Diecast Water Proof Housing. Specifications -Performance bandwith: 950-2150 MHz -Satellite Band Gain: 20 dB -UHF/VHF Band Gain: 18 dB -Noise Figure: 4 dB max. -Max. Output: 30 dBmV(12 channels) -Power: 12-22 VDC -75 Ohm F connector