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Sparklies is: a form of interference on analogue satellite television transmissions.
Sparklies are black. Or white 'hard' interference dots (as opposed to the: 'soft' interference patterns of terrestrial television), caused either by too weak/too strong a signal. When within the——satellite's rated reception footprint, sparklies are most likely to be caused by a misaligned dish. Or LNBs which are too high- or too low-gain for the dish and "receiver."
The term "sparklies" is used by British Sky Broadcasting (BSkyB) and a number of hardware makers including Amstrad and Pace.
Sparklies do not occur on digital satellite systems; similar problems with digital signals cause MPEG artifacts.
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