WHY DOES MY PICTURE KEEP STOPPING AND BREAKING UP?
 A digital signal is made up of bits of information. Even with a good signal and quality installation, there will always be errors in the signal. If an installation has 2 errors in 10,000 bits of information, the system is defined as error free!!

The best way to explain this is if someone sent you a message with one or two letters missing, you would still be able to read it as below:
Be at th restaurant at six pm to nigt.
If more letters were missing, you would still be able to read the message, but you would pause and faulter, just the same as your freeview box does when it breaks up into little squares and freezes.
Be at h retaurnt at sx pm t nght.
If more information was missing, you just simply wouldn’t be able to understand the message in the same way as your freeview box would not be able to.
Be a h reauant a sx m to ngt.

IF I BUY A DIGIBOX, WILL IT WORK?
 As the digital signal can be affected by many different forms of interference and weather conditions, an installer testing the signal for you can only say the signal is ok at the time of testing. To save you the cost of a site survey, the best solution for the customer is to firstly follow these simple steps:-

1. Set up the freeview box which will automatically scan for all available TV programs.
Channel 5 is one of the more difficult signals to receive. If your freeview box has not detected channel 5 at all, this means that your box has missed a whole group of programs and you do have a problem with your reception.

2. If your freeview box has detected channel 5, watch it for a few minutes to see whether the picture stops or freezes into small blocks. If this happens, you do have a problem with your reception.

3. If your are receiving channel 5 perfectly, the next time the weather is wet or windy, check channel 5 to see if you are still maintaining a good picture. If not, this indicates that you have a problem with water ingress on the cable or aerial.

4. During a period of viewing, if the TV picture freezes and blocks into small squares for a few seconds, this also could be an indication that unscreened cable and amplifiers etc.. could be picking up interference from passing vehicles or other sources.

If you do incur any of the above problems, then a site survey may be required.
View Confederation of Aerial Industries site
CAI (CONFEDERATION OF AERIALS INDUSTRIES LTD)
 The CAI is a recognised body for the aerial and satellite industry. They are working with the DTG (Digital TV Group) to ensure that all TV aerial installers are using benchmarked quality equipment. All CAI member applicants have to pass a thorough inspection prior to membership and can also be inspected at anytime during their membership. This ensures that members are reputable installers whose equipment and installation techniques are of the highest quality and standards that the CAI require us to adhere to.

Photo ID card check

The goverment's campaign is in place for analogue TV reception to be switched off by 2012.They are concerned that some people may see this as an opportunity to make some quick money (a bit like the knock on the door with someone saying “Do you want your drive tarmac?, or trees trimmed?).
The Government is going to strongly advise that you only use companies accredited to a recognised organisation such as the CAI.
TST is a full member of the CAI and our membership number is C1246. You can view our details on the CAI website www.cai.org.uk in the section "Find an Installer". The CAI website also gives you advice on the high quality that you, the customer can expect from TST as a CAI member.


Taped cable joint

CABLE JOINTS
 On many occasions, cable joints like this are found in lofts tucked under the loft insulation and even under the roof tiles. Sometimes many cable are joined together in this way. This is a joint that will cause you problems with digital reception. It was never an ideal way of joining cables although it would usually work with normal analogue TV reception.

Screwed cable joints

The cable joint seen right uses a method that screws together, providing a good tight joint and eliminates the possibility of the cables pulling apart. This is the high standard that digital installation now requires, to give you long term reliability.

Damaged cableThis cable (left) was removed from a customer's roof and is the sort of problems that made the normal picture go a bit snowy when it rained. With digital, the picture went totally and the customer was confused as to why they only lost their digital picture when it rained. This is the sort of problem that affects long term reliability of your digital TV.

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