A pub covered in several tv aerials or house for that matter just isn't necessary,one tv aerial can supply in theory an infinite no of points,an aerial per point is not needed plus it makes the roof into an eyesore
sometimes we have to put our stamp on peoples view,these people are of course customers.
The commonest misconception is the notion that you can receive terrestrial tv through a satellite dish,some people are either stupid or arrogant and there is no telling them.
terrestrial tv or through a roof mounted aerial is still the no1 way to receive TV,its no1 strength is it is free
no subscriptions or being tied in to a 12 month bindapart from the TV aerial license fee.
It can even be said that most subscription tv is slowy been phased out.
this is the coupling box of the two log periodic aerials that form the stealth array
this a combiner or balun unit,a fairly simple combiner of the two tv aerial signals.the two connecting cables from each aerial have to be a 15ft give or tale 2mm
tree covered hills have some very particular problems in store which need a lot of understanding,to avoid you going round in circles.
This needs a first class meter capable of measuring all relevant aspects that corrupt a digi
have annoying signal problems had somebody in who hadn't got a clue then call us in.
digital signals need a lot of experience and the correct equipment to asses a signal sn ratio a key parameter
All tv's have built in signal meters that are useful to give you an idea of the quality of your signal or if you are into a spot of diy.
But to ensure your signal inst about to fall of the digital cliff you must be able to measure the signals cn ratio.
If this parameter is poor you are hard pressed to correct it,poor cable is a common cause of this.In the digital world you either get it right or get t it wrong
we always check an aerials connection box for water ingress while we are working on a chimney or say fitting points.
Water ingress starts gradually and just gets worse eventually ending up causing you real problems
occasionally digital picture break up can come from the mains itself.
The mains can be very noisy in some areas,with fluctuating voltage and frequency and other gremlins.
it is always wise to fit an anti surge unit as well between your tv equipment and the mains.It isnt rare to find you mains supply howling up to 400 volts taking out almost everything in the house as well.
belkin make the best anti surge units on the market,not the cheapest,but you get what you pay for.
anti surge units come with filters built in but a purpose made filter is the best option to ensure a good clean supply of voltage for your audio visual equipment
So you now have dirty tv screen,finger marks maybe from you toddler or a sneeze badly aimed.
The glass tubes of the old crts could be cleaned with a duster and a can of pledge but not modern tvs.
A duster will scratch the soft screen of a typical crt,beyond repair and not reparable.
There a host of cleaning kits on the market that come with a purpose made cloth that will not scratch the screen,these don't cost an arm and a leg
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