Digital tv reception problems

[Paul C]

Just some help, if we have any members with proper expertise in this field?

My signal is about half strength on my digital reciever

No probs (except passing motorbikes make pixelation on the screen)

However...

If you move any of the wires behind the TV (mains, co-ax, scart etc)

then it takes an hour of shifting them randomly around to get any reception.

I have seperated all the mains and scart cable so they don't touch, but even

then the scarts still need jiggling forever before i get a picture and tip-toe away

leaving it all in 'position'

Just now (being an electrician) i figured screening was an issue and i have laid

a sheet of baking foil over the whole lot, and guess what? it's fine now.

I figure fitting a new co-ax to the ariel direct to the TV position is a good idea

so i might get on to that soon (exsisting has about six joints as it passes round

the house), i figure trying to get a better signal in will help.

I have a good digital ariel with a 12v booster incorperated into it (the original

ariel picked up nothing). And i have quality well screened gold scarts too. have

also ruled out any dry joints in the D sockets on the various devices.

If anyone has any ideas or experience then please PM me.

Cheers.

[Guest teigan]

any unshielded wire will contribute as an antennae, making tuning nonintuitive. you need to buy better quality cabling. also, bundle them all into one vertical backbone . you don't need a baking sheet. any metal cage will provide 100% shielding, without looking like a pastry kitchen. the backbone can also double as a cage if you make it of fence wire.

[Toua]

High quality wires is a must plus try not to bend them and flex them through walls and other equipments

[Ray]

Paul

Glad the foil has helped with the picture, but I hope you have left some for the turkey

Ray

[WayneB]

Easy with the foil big guy

Are you sure Clarky Cat hasnt been pi55ing behind the T.V. on the wires?

True story from the Barratt household

A couple of weeks ago, my oldest daughter woke me up at 5.30 in the morning to tell me the computer was on fire.

Ran downstairs to be engulfed in smoke and the smell of burning wiring

One of those bloody cats had took a pi55 on the powerbar/surge protector and shorted it out

Luckily the P.C. survived unscathed

[Paul C]

Thanks for the replies and PM's everyone

Have run a new co-ax from the ariel to the TV position,

And i bought some nice gold screened interconnecting

co-ax cables too.

However, when i plugged the TV back in... 'BANG!'

Something in the TV did not like me spending the day dragging

it about out of my way, the 2.5A internal fuse has gone for some

reason. It's the only scart telly we have, so i cannot say if my days

labours have been fruitful or not. Will pick up another telly tomorrow

and see how i've done...

Cheers all

[molemot]

Problem almost certainly on the RF input (aerial lead to box). All the other connections may slightly degrade the picture but not lead to pixellation. Some dull people buy gold speaker leads! And they'll swear they can hear the difference!!(and if I'd spent that sort of money, I'd swear I could hear a difference too!!)

[Guest teigan]

i forgot to add, if you twist all your cables spiraled together, you get additional shielding from the resulting magnetic field.

[esprit350]

Problem almost certainly on the RF input (aerial lead to box). All the other connections may slightly degrade the picture but not lead to pixellation. Some dull people buy gold speaker leads! And they'll swear they can hear the difference!!(and if I'd spent that sort of money, I'd swear I could hear a difference too!!)

<{POST_SNAPBACK}>

I agree the problem is probably on the RF leads and with joints in the co ax you get signal loss.

We also get pixilation on out set when trucks go past our house I have a 16 element aerial in the loft with a distribution amplifier.

Howard

[scoule]

We're in a "non-freeview" area offically, but I got one of these ...

http://www.satcure.co.uk/tech/dat45.htm

the DAT75, with MRD (amp built into pickup), stuck it on a 10ft pole and wired directly to back of TV with double screened cable (satelite stuff).

It works a treat - but it is bloody big and heavy!

[Paul C]

Old TV now gone to a better place...

New TV in and i have good picture.

Forgot to mention my ariel is in the loft. Have read over the last few days

that a loft position can cause around 30% signal loss (i'm at about 70% on

the strongest and 45% on the weakest). Also it states that the interferance

from switching domestic appliances (washing machine, spotlights etc) is in

the main caused by having a loft rather than an external ariel.

So maybe at some point i'll move it outside.

But not in the near future. Yesterdays exploits meant i did not use

the car this weekend, and telly ain't that important surely...