Thread: CATV Issues
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Old 09-13-2018, 02:35 PM   #17
Snoking
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Quote:
Originally Posted by wiredgeorge View Post
The OTA and CATV cables are RG-59 and won't convey satellite TV signals. You need RG-6 for that. Also, if you go into an autoparts store, you can buy a small inspection mirror which is a small round mirror that sits on a telescoping stalk and these are good for looking up into the ceiling void. Just stick a small flashlight in there and you can see what there is to see pretty decently. They are cheaper than cameras.
Both RG-59 and RG-6 are the same impedance of 75 ohms. RG-6 has a more robust shielding. HD TV signals use to call for quad shielded RG-6.

However: "There are "quad shielded" cables that have an extra layer of foil and braid shielding and can offer better protection. However, newer coaxial cables can use a 95% braid to perform better without the extra bulk and weight of quad shielded cables."

"The first obvious difference between RG59 and RG6 is the diameter of the cables themselves. Standard RG59 coax has a 20 AWG copper center conductor and RG6 coax has an larger 18 AWG copper center conductor, offering higher bandwidth and longer distance capability."

"RG6 cable is heavier gauge and has insulation and shielding tuned for high-bandwidth, high-frequency applications such as Internet, Cable TV, and Satellite TV signals. If you aren’t sure which cable to get, then RG6 cable is your best bet."

"RG59 cable is thinner and is recommended in low bandwidth and lower frequency applications such as analog video and CCTV installations"

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