Channel Plus DA-520A 20 dB Bidirectional Cable Amplifier 1 Cat-5 Or Broadcast Antenna Input Outputs To Tv Locations 1 Output Bandwidth: Full Catv Spectrum 40mhz-1ghz Plus Return Path Of 5mhz-42mhz 20 Db Forward Gain Plus 0 Db Of Return Path Gain Bidirectional amplifier for all RF bands, including VHS, low and high FM, and 4 cable TV bands Reverse directionality specifically designed for interactive cable systems and cable modems Amplifies original video signal for noise-free picture; 20 dB of gain in CATV or antenna system 54 MHz to 1 GHz forward bandwidth; 5 MHz to 40 MHz reverse bandwidth; +/- 1.5 dB gain flatness Measures 3.5 x 1.2 x 2.5 inches (W x H x D); 1-year warranty