Digiwave 1 In 8 Out Indoor Amplifier helps enhance the performance of all passive indoor antennas. It was engineered specifically for digital signals but it also supports analog signals. If your antenna is in a quirky or challenging area, the ANT0104 will easily transmit a signal that’s crisp and clear. It optimizes signal for the best possible reception through improved gain and also preserves signal purity with Extremely Low-Noise (ELN) circuitry.