New cable hook up

bishgeo

Active Member
Anyone know, is the cable wiring and the antenna wiring to the living room tv the same connection. I know sat is different. My cable tv sucks even after dealer said they fixed it. Antenna tv is clear. I was going to put new outside cable hook up on side of rig near big tv and run new cable to tv but don’t want to loose my antenna connection. 🤔
 

danemayer

Well-known member
The cable coax merges with the antenna coax at the signal booster, which may be located in your bedroom closet. From there it eventually gets to the living room TV coax wall plate. If the TV at that location has good signal, you might have a problem at the cable coax in the UDC, or where the coax connects to the signal booster. Or maybe you just need to turn the signal booster OFF when using cable.
 

nfa1eab

Active Member
Anyone know, is the cable wiring and the antenna wiring to the living room tv the same connection. I know sat is different. My cable tv sucks even after dealer said they fixed it. Antenna tv is clear. I was going to put new outside cable hook up on side of rig near big tv and run new cable to tv but don’t want to loose my antenna connection. 🤔

I have the same issue with my main tv. All other tv's work great on cable, except main tv. Did you ever get this resolved. Would love to know the solution.
 

bishgeo

Active Member
No, I chased cable, replaced splitters no help. I decided to try hooking cable tv up to sat jack for living room and I get crystal clear tv. If we have decent cable I don’t get the satellite out and we don’t watch tv in bed so that works for us.
 

mlpeloquin

Well-known member
Sometimes the cable's outer conductor has not been trimmed properly and one of the fine shield wires bends over and touches the center conductor shorting it out. I use a 75 ohm adapter to check cables from one end to the other. First check with the ohm meter to see if there is a short, and then install the 75 ohm terminator and measure the resistance. If it is shorted, look for the short at ether end of the cable. Use a pick or needle to remove the short. Multi meters are cheep and even the lowest cost one from Harbor Freight will do the job.

75 Ohm Terminator
https://www.amazon.com/Terminator-1...uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

Multi Meter
https://www.harborfreight.com/search?q=multimeter
https://www.amazon.com/s?k=Multimeter&ref=nb_sb_noss_2
 

nfa1eab

Active Member
No, I chased cable, replaced splitters no help. I decided to try hooking cable tv up to sat jack for living room and I get crystal clear tv. If we have decent cable I don’t get the satellite out and we don’t watch tv in bed so that works for us.
Thanks for the quick answer. Where did you find the splitter for the cable connection? Only place I can think of is behind the surround sound dvd player at the entertainment center. It is the only opening into the wall that I know of.

- - - Updated - - -

Sometimes the cable's outer conductor has not been trimmed properly and one of the fine shield wires bends over and touches the center conductor shorting it out. I use a 75 ohm adapter to check cables from one end to the other. First check with the ohm meter to see if there is a short, and then install the 75 ohm terminator and measure the resistance. If it is shorted, look for the short at ether end of the cable. Use a pick or needle to remove the short. Multi meters are cheep and even the lowest cost one from Harbor Freight will do the job.

75 Ohm Terminator
https://www.amazon.com/Terminator-1...uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl

Multi Meter
https://www.harborfreight.com/search?q=multimeter
https://www.amazon.com/s?k=Multimeter&ref=nb_sb_noss_2

Understand what you are saying. But, if there was a short, would it not in fact, affect both the cable signal and the antenna signal, since they run through the same coax? My antenna feed is crystal clear. It is only the cable feed for the main tv thatmis snowy.
 

mlpeloquin

Well-known member
Understand what you are saying. But, if there was a short, would it not in fact, affect both the cable signal and the antenna signal, since they run through the same coax? My antenna feed is crystal clear. It is only the cable feed for the main tv thatmis snowy.

You have snow because the input signal is not strong enough to have the losses through all the splitters. Each splitter, if of high quality, will cause 3 to 3.5db loss. Each connector, if really good, is 1/2db loss. Every 3db is 1/2 power of signal loss. So add it up. My problem was the opposite. Bedroom bad and living room was good. I added a park cable amplifier in the UDC to take care of the problem. It did not over drive the living room TV and it cleaned up the park cable in the bedroom.

This is the one I installed in the UDC. https://www.amazon.com/PCT-BI-DIREC...jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
 

nfa1eab

Active Member
Thought I would give an update on solving my snowy cable connection to the main TV. The splitters for cable and satellite were both located behind the fabric panel above the entertainment center where the surround sound speakers are located. Each has a 4 way splitter, utilizing 1 input and 3 outputs. Each output runs to the main tv, garage tv, and tv hookup in basement storage. The coax going from the cable/antenna splitter to the main tv had a couple of strands of the shielding touching the center copper core wire. Cleaned these out with a sharp knife tip. This improved the connection, but still pixelated some. Replaced the coax from the wall plate to the main TV with coax cable that had a thicker center core wire. The cable I had used was a packaged coax cable from Home Depot. I replaced it with one I had that was made by cable company. It had a thicker core wire. Viola!! Perfect picture on cable and antenna. BTW, I had previously tightened every coax connection at the UDC, the antenna booster plate, both splitters at entertainment center, and all wall plates. None of them were tight. The antenna connection worked fine before this fix, I guess because it runs in a different frequency than the cable frequencies. My buddy and I worked through this when we got down to the Rolex 24 in Daytona, before the event began. Such a joy to have perfect cable signal at the main tv, and all other tv's. A dealership would have never spent the time to resolve this. If you want it done right, do it yourself!!
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