How can you get clearer pictures in the rooms without a converter box when you are paying for cable TV?

Answer 1

Sounds like you're trying to run several TV's from one cable box's RF output.

All you need to do is get an RF amplifier to raise the signal output from the box enough to overcome the losses in the splitters and cable you're using.

If you're using just basic cable, the same RF amplifier should work to boost the signal, and it should be placed where the cable is split off for the different feeds to the other TV's. You'd probably be better off putting the amplifier just at the first signal splitter.

To determine how much amplification you'd need, just add up the signal loss for each split (usually 3 to 6 db and also 3 db per hundred feet of RG-6 cable). Once you have the total, you need an amplifier just large enough to cancel out the losses. And yes, you can go a little larger with the signal gain, but not too much as you can also over drive the inputs of the TV. In this case, more isn't always necessarily better.