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In page Loran-C:

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Critics, who have called for the elimination of the system, state that the LORAN system has too few users, lacks cost-effectiveness, and that Global Navigation Satellite System (GNSS) signals are superior to LORAN.[citation needed] Supporters of continued and improved LORAN operation note that LORAN uses a strong signal, which is difficult to jam, and that LORAN is an independent, dissimilar, and complementary system to other forms of electronic navigation, which helps ensure availability of navigation signals.[1][2]