Unidentified signal captured overlapping ch 16 marine emergency freq.

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Unidentified signal captured overlapping ch 16 marine emergency freq.
LatestCH16.jpeg
Frequencies 156.8049 MHz
Frequency Range 156.8049 MHz - 156.8049 MHz
Mode
Modulation
ACF
Bandwidth 200 kHz
Location Port-Gentil Gabon
Short Description It looks like some kind of frequency hopping system, as the actual bandwidth is of about 50 kHz but the central frequency is rapidly changing during transmission to cover about a total of 200 kHz.
I/Q Raw Recording
Audio Sample

It looks like some kind of frequency hopping system, as the actual bandwidth is of about 50 kHzKiloHertz (kHz) 10^3 Hz but the central frequency is rapidly changing during transmission to cover about a total of 200 kHzKiloHertz (kHz) 10^3 Hz. Because it overlapses the channel 16 marine emergency channel (156.800 MHzMegaHertz (MHz) 10^6 Hz) it looks worrying. Can someone please help?