Now if you can get TV modulators that use channels other than 3 or 4, you could build yourself your own "cable head end". You'd need one ATSC reciever box per desired TV station, and a modulator to place its NTSC output onto a selected VHF or UHF TV channel. Then mix everything together by using a multiport cable splitter. You'll probably have to skip alternate channels as the lower sideband supression of TV modulators are likely non-existant. So you'd probably pick channels 2, 4, 6, 7, 9, 11 and 13 (6 and 7 are not adjacent in terms of RF carrier frequency).
Well, that can get expensive quickly.
|