The Holland Electronics LA-520 is an in-Line 20dB Power Amplifier for Satellite TV.The LA-520 High-Output 20dB Line Powered Amplifier has been specifically designed for Satellite TV systems with a frequency range of 50 to 2150 MHz. It can be powered with existing line voltage or used with the optional PS-10 power inserter.Features:Line PoweredLow Noise with High OutputHermetically sealedOutdoor Rated CaseDIRECTV ApprovedSpecifications:Frequency Range: 50 - 2150 MHzGain: 20 dBMaximum Input: -38 dBm (16 transponders)Maximum Output: -18 dBm (16 transponders)Noise Figure: 5 dBPower Requirements: 12 - 18 VDC at 50 mADimensions: 2.25" x 1" x.75"Weight.15 lbs.