What influences digital tv reception or alternatively, why does my tv go on the blink?

on Sep8 2010

For example, if my friend uses her hair dryer upstairs, is the TV on the blink.Auch, I swear, if a certain type of vehicle past our house or go outside parks with the engine running, the TV reception breaks up in the so and so goes los.Was is this then? Is it real, and if so, why (scientifically) does this happen? Alternatively, I am Verrue Something?


Comments

4 Comments so far


  1. 1 Fifi on September 8, 2010 2:07 am

    You may just need a better aerial.

  2. 2 student @ northumbria on September 8, 2010 2:45 am

    If you are using an internal ariel, things like that can affect the signal, like mobiles and hairdryers etc… it’ll probably cost around £70 but get a digital ready external ariel on to the roof.

    Crystal clear signal after that.

    Electrical appliences seem to give off radio waves which combine with the signal waves and distort them

  3. 3 cabbiinc on September 8, 2010 3:29 am

    You might have a ground problem. That would explain the hair dryer. You should have something on your system that looks like the first link bellow. It will ground your outer shielding of the cable from your antenna.
    As for the car going by thats from reflections. Grounding your system properly may reduce this, and thats where I would start, but you may need to get a more directional antenna. The grounding will cost less.

  4. 4 Dave B on September 8, 2010 4:17 am

    The TV on the blink sounds like you need a qualified electrician to take a look at your wiring, if its more than just interference on the screen.
    If it is just interference it sounds as if the hairdryer needs replacing, little or no RF suppression on the motor.
    As far as digital reception goes, if your in the UK, currently all digital transmissions are on reduced power until the analogue switchoff so almost a pin dropping could affect the digital signal.
    But as previously suggested the best place to start is with a Wide Band Roof mounted aerial.

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