Power Interference on TV Signal

gaelicyoda · 23-10-2013 4:52pm #1

Hi All,

About 2 years ago when we had the electrician in to do some other work, we asked him to wire up our attic for power and light, but not to connect it to the main fuse board as we had to insulate and floor the attic in the meantime.

After quite a lot of procrastination, this year we finally finished, meaning that we made the final connection to the fuse board. Now we have power and light up there which is great, but it appears this has come at a cost.

Since connecting the power, our TV signals are completely gone. It appears that in his wisdom, the electrician didn't bother his arse segregating the power from the TV cables which has made a complete sham of our TV distribution throughout the house.

So what are my options at this point?

Simply separating them I suppose should really be my first stop, but there's not an awful lot of slack on the cables. Are there any techniques here that might be helpful to me?

Alternatively, I was hoping to find some shielded conduit to put either the power or coax cables into with a view to limiting interference, but I'd have to cut it (length-ways) to slide on over the cables, so I don't think that's a runner.

What I'm thinking now might be to get a pair of wireless HD signal sender/reciever units - plug the aerial into a sender in to the attic, and have a receiver at each TV. Does sound expensive though

Anyone hit a similar problem or have any suggestions?

32db · 23-10-2013 8:00pm

Do you have an amplifier in the attic to distribute your signals around the house.If so is it still powered up?

steveon · 23-10-2013 11:30pm

gaelicyoda wrote: »

Hi All,

About 2 years ago when we had the electrician in to do some other work, we asked him to wire up our attic for power and light, but not to connect it to the main fuse board as we had to insulate and floor the attic in the meantime.

After quite a lot of procrastination, this year we finally finished, meaning that we made the final connection to the fuse board. Now we have power and light up there which is great, but it appears this has come at a cost.

Since connecting the power, our TV signals are completely gone. It appears that in his wisdom, the electrician didn't bother his arse segregating the power from the TV cables which has made a complete sham of our TV distribution throughout the house.

where has the power in the attic came from did he take a feed from the cable going to the shower or something???
So what are my options at this point?

Simply separating them I suppose should really be my first stop, but there's not an awful lot of slack on the cables. Are there any techniques here that might be helpful to me?

Alternatively, I was hoping to find some shielded conduit to put either the power or coax cables into with a view to limiting interference, but I'd have to cut it (length-ways) to slide on over the cables, so I don't think that's a runner.

What I'm thinking now might be to get a pair of wireless HD signal sender/reciever units - plug the aerial into a sender in to the attic, and have a receiver at each TV. Does sound expensive though

Anyone hit a similar problem or have any suggestions?

where has the power in the attic came from did he take a feed from the cable going to the shower or something???

Peter Rhea · 23-10-2013 11:58pm

gaelicyoda wrote: »

Since connecting the power, our TV signals are completely gone. It appears that in his wisdom, the electrician didn't bother his arse segregating the power from the TV cables which has made a complete sham of our TV distribution throughout the house.

Can you post pics of the cables in question?

Machinehead · 24-10-2013 12:20am

I've had many installers to my house for various reasons over the past 25 years. Each time poor picture quality throughout the house was the main topic of conversation. The generic response each & every time was that the problem was due to a poor/bad earth somewhere in the household wiring. Only this past week the Sky signal distributed around the house on UHF Ch. 29 has deteriorated noticeably, can't explain why.

gaelicyoda · 24-10-2013 8:54am

32db wrote: »

Do you have an amplifier in the attic to distribute your signals around the house.If so is it still powered up?

Yes, the deterioration was present even when using the amplifier.

gaelicyoda · 24-10-2013 8:59am

steveon wrote: »

where has the power in the attic came from did he take a feed from the cable going to the shower or something???

Honestly I have no idea... I presume though that when it has it's own connection on the board that it's a separate, dedicated cable for the attic.

gaelicyoda · 24-10-2013 10:49am

Peter Rhea wrote: »

Can you post pics of the cables in question?

I'll take a look when I get home today.

Peter Rhea · 24-10-2013 10:53am

Pics would be useful just to see how close together the cables are & for what length they are run together.

I assume in all this, that the newly connected attic lights work properly with no flickering etc.?

gaelicyoda · 24-10-2013 10:57am

Peter Rhea wrote: »

Pics would be useful just to see how close together the cables are & for what length they are run together.

I assume in all this, that the newly connected attic lights work properly with no flickering etc.?

Sure, no worries.
Yeah, all working well - no electrical problems at least, they all seem to be on the coax side

32db · 24-10-2013 3:07pm

gaelicyoda wrote: »

Honestly I have no idea... I presume though that when it has it's own connection on the board that it's a separate, dedicated cable for the attic.

Electrician may be able to advise on this, if it has its own feed and separate circuit breaker why not trip this and see do your signals return before putting extra work on yourself.

32db · 24-10-2013 3:15pm

Oh just make sure your amp is still powered up, use extension lead if necessary

gaelicyoda · 24-10-2013 3:39pm

32db wrote: »

Electrician may be able to advise on this ...

Not likely, he's in Canada now

winston_1 · 24-10-2013 9:36pm

gaelicyoda wrote: »

What I'm thinking now might be to get a pair of wireless HD signal sender/reciever units - plug the aerial into a sender in to the attic, and have a receiver at each TV. Does sound expensive though

No such thing. Video senders distribute video not aerial signals.

gaelicyoda · 25-10-2013 9:55am

winston_1 wrote: »

No such thing.

****e

Peter Rhea · 25-10-2013 10:35am

And sending signals 'through the air', as opposed to shielded cables, is hardly a recognised way of reducing interference.

32db · 25-10-2013 3:27pm

You say you insulated your attic,if it is the foil back stuff and packed under the rafters and if your aerial is inside your signal is going to be reduced big time.

gaelicyoda · 25-10-2013 3:57pm

32db wrote: »

You say you insulated your attic,if it is the foil back stuff and packed under the rafters and if your aerial is inside your signal is going to be reduced big time.

That's right, but the insulation does not extend into the eaves (where the aerial is). On the ceiling, it only goes down as far as the knee wall.

32db · 25-10-2013 4:44pm

gaelicyoda wrote: »

That's right, but the insulation does not extend into the eaves (where the aerial is). On the ceiling, it only goes down as far as the knee wall.

Presume it is still aligned correctly ,it would be nice to see if a telly would work ok in the attic with a direct feed from your amplifier.

gaelicyoda · 25-10-2013 4:54pm

32db wrote: »

Presume it is still aligned correctly ,it would be nice to see if a telly would work ok in the attic with a direct feed from your amplifier.

It should be fine... the picture went from perfect to snow with just the flick of a switch

Peter Rhea · 25-10-2013 5:25pm

You don't get snow with dodgy digital reception.

If you are seeing 'snow' on the screen, then it's an analogue channel you are viewing & this can only be coming from an in-house modulator, such as fitted to a Sky box. For most other receiver types, it will be a separate add-on device.

Power Interference on TV Signal

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