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Last Updated: Tuesday, 7 March 2006, 18:05 GMT
Digital broadcasting: Industry answers
Some of the leading figures in the broadcasting industry have answered your questions about TV and radio in the digital age.

The BBC News website asked for your queries about the way new technology is being used - and the eight sharpest and most pertinent questions were put to the virtual panel.

Click on each question to read the answers. The opinions given are those of the experts concerned, and are not endorsed by the BBC.


Most people have about three television sets. The second and third sets are mainly portable TVs picking up signals via a portable aerial. These sets will become useless unless people invest in a set-top box for each TV. My concern is that portable aerials are not able to pick up the digital signal. How do you propose to overcome this problem? Keith Cotton, Stoke-on-Trent

  • Ford Ennals, chief executive of Digital UK:

    A recent Ofcom study reported that only about one quarter of secondary sets use set-top aerials. Most secondary sets are connected to a rooftop aerial or to a cable or satellite box which are the best ways to get a good signal.

    For those using set-top aerials, there is no question of their sets becoming useless. Many set-top aerials can pick up a digital signal. Ricability, an independent consumer research organisation, is currently testing over 40 models of set-top aerial. The results of the study will be published in the next few months. Manufacturers are also developing new set-top boxes with "antenna diversity", which enables more robust reception. These should greatly improve the DTT reception performance of set-top aerials.

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