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Galileo, the future European GNSS, is planning to transmit navigation signals in four sub-bands (E5a, E5b, E6 and E1) within the L band. There are also other applications which use the L band worldwide, sharing the spectrum with GNSS or utilizing neighboring bands. Reports of measurement campaigns have shown that unaided GNSS receivers could experience loss-of-lock near FM and TV broadcast transmitters...
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