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Originally Posted by Dee V. Bee
There is no such thing as a NICAM flag....
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"C4 is the "Reserve sound switching flag". It is used to notify the receiver that if NICAM is lost then it can switch to the FM mono sound signal which is transmitted for users without NICAM. "
http://www.doc.ic.ac.uk/~nd/surprise...nal/vol2/aps2/
well thats your opinion, however my opinions are backed up with facts.
