ordered, paid, and the goods were delivered, perfect, thank you! the part has about 3 dB attenuation ... and approximately 24 db signal distance ... so enough to VHF and UHF 300-800 MHz perfectly in 2 TV feed ... is clear ... that this part of an active antenna wanting to have as a prerequisite ... then it works perfectly ... a passive antenna feed here is measured and will not work ... perfect for my purposes ...