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 MHzMegaHertz (MHz) 10^6 Hz156,804,900 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
156,804.9 kHzKiloHertz (kHz) 10^3 Hz
Frequency Range 156804900 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).156,804.9 kHzKiloHertz (kHz) 10^3 Hz
156.805 MHzMegaHertz (MHz) 10^6 Hz
156804900 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).156,804.9 kHzKiloHertz (kHz) 10^3 Hz
156.805 MHzMegaHertz (MHz) 10^6 Hz
Mode
Modulation
Bandwidth 200 kHzKiloHertz (kHz) 10^3 Hz200,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.2 MHzMegaHertz (MHz) 10^6 Hz
200 kHzKiloHertz (kHz) 10^3 Hz
0.2 MHzMegaHertz (MHz) 10^6 Hz
200 kHzKiloHertz (kHz) 10^3 Hz
0.2 MHzMegaHertz (MHz) 10^6 Hz
Location Port-Gentil Gabon
Short Description 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.
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?