Unknown 173

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Unknown 173
Unknown173 Waterfall.png
Frequencies 173.262 MHzMegaHertz (MHz) 10^6 Hz173,262,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
173,262 kHzKiloHertz (kHz) 10^3 Hz
Frequency Range 173262000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).173,262 kHzKiloHertz (kHz) 10^3 Hz
173.262 MHzMegaHertz (MHz) 10^6 Hz
173262000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).173,262 kHzKiloHertz (kHz) 10^3 Hz
173.262 MHzMegaHertz (MHz) 10^6 Hz
Mode NFMNarrowband Frequency Modulation
Modulation
Bandwidth 0 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).kHzKiloHertz (kHz) 10^3 Hz
MHzMegaHertz (MHz) 10^6 Hz
kHzKiloHertz (kHz) 10^3 Hz
MHzMegaHertz (MHz) 10^6 Hz
kHzKiloHertz (kHz) 10^3 Hz
MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description
I/Q Raw Recording
Audio Sample

Heard also in Elizabeth City, NC, USA. Sometimes the initial tone is followed by what sounds like a short burst of data. Occasionally there is a weak reply (or inquiry?) on 173.3125MHz