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Terrestrial Broadcasting
Terrestrial Television, Digital and Analogue
ghosting
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<blockquote data-quote="rolfw" data-source="post: 148580" data-attributes="member: 175057"><p>Ghosting is to do with terrain, not other transmitters, as they transmit on different frequencies. In weak reception areas, low lying areas or areas surrounded by tall buildings, it is the reflected signal reaching the TV a fraction after the main signal which causes the ghosting, over amplification can also add to the problem. In very strong signal areas and in tall buildings, ghosting can also appear on the left of the picture, this is due to secondary signal entering the up or down cable, therefor reaching the TV before the primary (intended) signal.</p><p></p><p>Had one down in Tilbury docks which received a strong signal from Crystal Palace which ever way the aerial was pointed, the analogue signal was unwatchable, but the digital signal came in with accepable snr and bit error rate.</p></blockquote><p></p>
[QUOTE="rolfw, post: 148580, member: 175057"] Ghosting is to do with terrain, not other transmitters, as they transmit on different frequencies. In weak reception areas, low lying areas or areas surrounded by tall buildings, it is the reflected signal reaching the TV a fraction after the main signal which causes the ghosting, over amplification can also add to the problem. In very strong signal areas and in tall buildings, ghosting can also appear on the left of the picture, this is due to secondary signal entering the up or down cable, therefor reaching the TV before the primary (intended) signal. Had one down in Tilbury docks which received a strong signal from Crystal Palace which ever way the aerial was pointed, the analogue signal was unwatchable, but the digital signal came in with accepable snr and bit error rate. [/QUOTE]
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Terrestrial Broadcasting
Terrestrial Television, Digital and Analogue
ghosting
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