Join Date: Feb 2005
Location: Hamilton: Garth and Rymal
The problem is that the OP isn't optimized for a FTA setup to begin with, he has a Bell system. Their LNB is wrong for FTA, and their dish size is usually too small. Not to mention, his dish, being Bell, is mounted to point in one direction. If he truly wanted to take advantage of FTA, then he would have to get multiple dishes (or multi-point LNB) or buy a motor to rotate the existing dish setup. The fact that the OP is here, asking the questions he is asking, most likely isn't even interested in FTA at the moment.
The big problem with those multiswitches, if they have the additional input for Antenna/cable, when it comes to OTA, is the Antenna/cable input usually suffers from a large insertion loss. I have a multiswitch, which I considered using, but at 15dB insertion loss, gains from pre-amps to compensate for line loss, are essentially lost going through the multiswitch.
The OP doesn't indicate if his TV's even have ATSC tuners built in or not. That is something he also has to consider. He may need OTA STB's for his TV's, or the purchase of new TV's. Something he may not have thought of.
He also doesn't indicate the approximate distance from antenna to TV's.
Depending on where the existing dish is mounted in relation to the antenna, he may be able to swap the cabling over from the dish to the antenna and use that to go into the house. Depending on the length of cable, the antenna's 13dB amplifier gain can hopefully compensate the line length (~1dB loss for 18' of cable if I recall). Depending on how much loss has incurred along the down run, the OP can then decide to swap out the existing switch for a simple splitter, or distribution amp to feed the three TV's. Just remember to cap off any unused ports with a 75ohm terminator.
Hope that helps, and have fun.
Mayhem Creations-"The Art Of Emotional Creation"
sites.google.com/site/maycreates/Home -for viewing all my DIY projects