Hand on the TV

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paternis Posted messages 30 Status Member -  
Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   -
Hello,

Here is my issue, I live in a shared apartment and I have a wall socket (correctly connected at this level). I get very poor TV reception with it; well, when I say very poor, that's not true, if I touch the antenna cable behind the TV (the metallic part to make contact and not a movement of the socket, the TV is new) the reception improves by 100%.

I can't understand the phenomenon, maybe you could help me and explain what to do so that I don't have to watch my TV with my hand sticking to the antenna :p

Thank you

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10 answers

Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   12 199
 
I don't quite understand your concern. Do you mean that you unplug the collective antenna and that by touching the antenna input plug of your TV, you have a good reception?
If so, it means that your collective distribution is poor, that you live very close to a transmitter and that an indoor antenna could work well.
And how is it going at your neighbors'?

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paternis Posted messages 30 Status Member
 
All my neighbors use their boxes to get TV, so I can't know what it's like at their place just by using the antenna.

Actually, no, I leave the antenna cable connected between the TV and the wall socket, which gives me a very weak reception (but of very poor quality, don't count on seeing a picture in HD :s) but as soon as I touch the plug behind my screen, without unplugging it, just by touching the gold part of the connector, it makes contact. It's from that moment on that my reception is great :s

I'm not going to hire a TV slave just to touch the connector for me :p

At first glance, the issue seems simple since it's a matter of electricity (I think, since we're electrical :p)

I asked my landlord if the installation was adequate, and they confirmed that it was.
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Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   12 199
 
You can try to properly control your connections between the TV and the wall socket; otherwise, unplug the wall socket, dismantle it, and make a loop with a wire between the core and the braid of the cable. This will give you an idea of the reception field at home. If it works, buy yourself an indoor antenna.

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Anonymous user
 
suspects the use of a TV cable with a Ø9mm plug on a standard socket of Ø9.52 mm
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Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   12 199
 
Indeed, I hadn't thought about this issue, and the fact of making contact with his hand means he is using old green 9mm sheets instead of the blue 9.5 ones, right?
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Anonymous user
 
exactly
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Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   12 199
 
Has our friend understood that he needed to change his sockets?
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Anonymous user
 
Where is his cable if it has a molded plugs thing?
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paternis Posted messages 30 Status Member
 
Wow ^ thanks for the quick responses,

I installed the cable myself (correctly) it's 75 ohms (I don't know how to spell it and I can't type the symbol :p) which is 6.8mm in diameter. As for the connectors, I have to admit I don't know; I read that gold contacts would reduce losses and there was only one model at Boulanger, but I can't find the references (packaging thrown away and not listed on the connectors themselves)

But it seems that it would therefore come from the latter?
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Anonymous user
 
Well ................ a Ø of 6.8mm doesn't exist!!!
it's 9 or 9.5 mm in outer Ø for a male connector.
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Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   12 199
 
He is talking about the diameter of the cable ;)
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Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   12 199
 
Apparently, yes for the cable it's good, the 6.5 plugs are blue and the assembly must be correct, the braid must make good contact and there should be no short circuit (be careful of a little "hair" of braid that could touch the core.)

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paternis Posted messages 30 Status Member
 
The assembly, I am confident, very neat, done to the millimeter and well fixed. As for the plug, I have no color on the one I have, so I will go buy one on Monday; I will let you know if it makes any difference.
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Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   12 199
 
If your plug is a 6, connected to a 6.5, it should float in the TV socket; try to wedge it in with a beveled matchstick, for example, and on Monday, make sure to buy a 6.5.
By the way, is your TV new?

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paternis Posted messages 30 Status Member
 
Yes, she is a few days old, LED TV with built-in TNT decoder, so logically the problem shouldn't come from this equipment.

(the matchstick trick seems to work, so changing the plug :p
so blue ones ^
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Andy31200 Posted messages 26918 Registration date   Status Moderator Last intervention   12 199
 
Here, if your TV is recent, it’s definitely necessary to have 6.5.
Well, a quarter to seven is the time for the R**ard!!!

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