I am trying to modulate 6 cameras onto 6 channels of digital cable. I was planning to use a channel vision modulator and a channel vision splitter. I talked to Ch vision tech support and they said that it will be very difficult to get 6 channels modulated into the digital cable system without swiching the input on the tv to veiw the cameras. They said that because of the frequency used by digital cable it is very limeted what can be modulated in. Just wondering what you guys have ran into with modulating digital cable.