Diplexer with cable modem

[PIMP_2]

weird,

I decided to run a dedicated line off my OTA feed in the attic and I get some loss off a 5-2300mhz -3.5db DC splitter. On the 622 my signal is 79% and on my HDTV wonder its 60-65% perhaps its due to a 100ft run?

I guess I need a preamp!

Yup, I would throw in a four way amp made by SVI, it has four outputs all gain +7dB, this would allow later dedicated home runs from amp to other TV's/Receivers