Cable Internet/ota Combined

chastulsa

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Original poster
Supporting Founder
Dec 4, 2003
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Anyone Know if you can combine CABLE INTERNET and OTA (DIGITAL) on one line and then uncombined? (like SAT DIPLEXED to OTA) I know better pic but its tough to run a cable to this area.
 
It is not recommended to use one cable to supply both of those signals. Your cable modem line contains all of the analog frequencies as well as those dedicated to downloading and uploading. You'll have an overlap of signal due to the fact that there are frequencies on both your antenna line and your cable line. As a result, you probably will have too much signal noise on your digital receiver. Best case scenario is to keep both your dedicated modem line and your antenna line separated completely. The same goes if you want to make splits on your cable internet line in order to feed some analog or digital to your televisions in your house. Any splitting of the cable will result in a loss of signal, a drop in overall download/upload speed, and the possibility of having times where your modem cannot communicate correctly on the cable line.
 
It's certainly best to avoid diplexing if you can. If you install a diplexer on the cable line the isolation is usually enough to suppress the unwanted cable TV signals before you add the OTA but it depends on signal strengths and the particular diplexer you use. If some of the cable TV signal leaks thru to the OTA you will either get a lot of noise or in the worst case lose your OTA signals completely.
You can try it and see what sort of results you get.
 

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