If you have poor picture quality one of the quickest things you can do is to see whether your dish or aerial have moved out of its original position.
In case if you notice that there is something wrong and it is beyond your range to rectify yourself. It is advisable to contact aerial fitter in Peterborough who can use their expertise to fix the issues with perfection.
If everything looks perfect from outside then you can move back inside and check if the cables are properly jacked. A fitter with his ohmmeter can check if the resistance are OK. All three are quite cheap and can be purchased online or from a shop that supply aerials or satellite equipment, after you have read and implemented all the instructions that come with your meter, disconnect the aerial from the back of the TV and connect the cable to your meter in accordance with the instructions that came with the ohmmeter. Before doing the check on your ohmmeter make sure that the battery of the meter are in good condition.
If you get a very strong signal but still get a poor picture you may need to have your TV checked if the cable came directly from the back of the TV. But if you cannot get a strong signal at the meter then take your meter and go to the connection nearest to where the cables enter the property, probably a wall socket. When you purchased your meter you should have also got a short cable with a male aerial plug on both sides, you will need this now.
Connect one side to your meter and one side to the aerial or dish wall socket and test for a signal as above and as described in the meter instructions, if you still get no signal here then the problem is probably outside and I would advise you to call an engineer capable of working at height, but if you do get a strong signal here all you need do is keep on checking individual pieces of wire with your meter and ohmmeter until you find where the signal stops and change or repair as needed.
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