mandbsheldon
|
| posted on 27/12/06 at 10:09 AM |
|
|
TV signal HELP NEEDED!
Can any one shed any light on this for me?
I have a problem with a couple of channels having interfearance. I'll try and discribe my set up.
I have a didgital arial and off it I'm running the TV in the living room, connected to which is a Freeview box, a Video and a DVD-RW. All of
these appliances are connected via co-axle arial cable and also a scart lead. The same arial suplies a signal for a TV in the kitchen, just via a
splitter on the main cable. If I remove all of the bits and just have the main TV running I get a great picture, but when I start adding bits it goes
rubbish again. In the past I've tried Boosters etc, but they have proved to be crap.
Has anyone got any idears
Thanks,
Leigh
|
|
|
|
|
tks
|
| posted on 27/12/06 at 10:12 AM |
|
|
mhhh
problem can be quality cable, conectors..
also make sure the shielding doesn´t touch the innter core cable..
its a very common fault.
every device consumes power and thats what happens you lose signal.
good boosters should help you.
Tks
The above comments are always meant to be from the above persons perspective.
|
|
|
mandbsheldon
|
| posted on 27/12/06 at 10:57 AM |
|
|
thanks tks.
leigh
|
|
|
mistergrumpy
|
| posted on 27/12/06 at 12:43 PM |
|
|
Going off experience of one me and me uncle did it was the splitter in the line causing the problem.
|
|
|
wilkingj
|
| posted on 27/12/06 at 02:56 PM |
|
|
Are you distributing the signals using the aerial sockets. ie from the Video and freeview, etc. You may have the RF signals from these boxes
interfering (and mixing in the cables).
Check what RF channel these boxes are transmitting on, and put them on separate channels (10 channels or more apart if poss).
Manufacturers usually set them all to the same channel.
Depending where your Analogue TV channels are, (mine are 21, 23, 31 etc at the bottom of the list), I would use Higer channels for the Video output
and DVD outputs. However Keep them well apart from each other. The actual channel numbers dont matter, its keeping them apart that does.
ie my analogue channels are 21,23 etc, so I would puy the video on channel 40, and the DVD output on 50, so they dont interfere.
Of course, you dont need to worry about connections using scart, as they are not using RF signals.
I would do it like this.
Aerial> RF cable>Freeview box> RF cable>Tape/Video> RF cable>DVD> RF cable> Splitter>TV and Kitchen TV
Or as above, but feed the TV with the Scart outputs where possible. I assume the Freeview / video etc are by the Main TV.
I think you have the RF outputs of the Video and DVD mixing / interfering with each other.
If you dont use the RF outputs turn them off in the menu's if you can, but you probably need them to boost through to the kitchen.
Right... boosters,
Its a waste of time putting the booster on the TV end of the cable, you only end up amplifying the noisy signal, which is pointless.
Boosters need to be wired in at the aerial end, where you have max signal and less noise to amplify.
DO NOT, wire an booster amp in less than 4ft (1.2m) from the back of the aerial. As you will probably get feedback from the amp back into the aerial!.
ie Aerial then 1.2m of cable before wiring in the booster.
Also if you are feeding several tv's with in the house, a low powered booster could be used after the last device (Vid / DVD) with multiple
outputs to feed the TV's.
Or just a plain splitter. Remember that every splitter takes HALF the signal away ie -3Db loss in a splitter!. If you have enough signal, its not a
problem, if not a low powered booters will help.
U2U me (with phone no.) if you want to chat about it
1. The point of a journey is not to arrive.
2. Never take life seriously. Nobody gets out alive anyway.
Best Regards
Geoff
http://www.v8viento.co.uk
|
|
|
