Re: Mobile phone signal interfering with digital TV signal
The booster (as you call it) sounds like it's a cheap one with absolutely no filtering. Where is it sited? If near the TV then most likely it's 100% to blame. If it's in the loft then the phone signal could be being picked up by the co-ax downlead and feeding upto the booster thus causing feedback on the amplification circuit..
The mobile (either transmitting on 800/900 or 1800 Mhz) should not cause direct interference to the TV, neither should a cordless DECT phone at 2.4Ghz, unless the cordless is an old analogue device or one sold for use in another country..
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