Sounds like a pager

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Sounds like a pager
Mysterymodempic.png
Frequencies 75.580 MHzMegaHertz (MHz) 10^6 Hz75,580,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
75,580 kHzKiloHertz (kHz) 10^3 Hz
Frequency Range 75580000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).75,580 kHzKiloHertz (kHz) 10^3 Hz
75.58 MHzMegaHertz (MHz) 10^6 Hz
75580000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).75,580 kHzKiloHertz (kHz) 10^3 Hz
75.58 MHzMegaHertz (MHz) 10^6 Hz
Mode NFMNarrowband Frequency Modulation
Modulation Unknown
Bandwidth 12.5 kHzKiloHertz (kHz) 10^3 Hz12,500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.0125 MHzMegaHertz (MHz) 10^6 Hz
12.5 kHzKiloHertz (kHz) 10^3 Hz
0.0125 MHzMegaHertz (MHz) 10^6 Hz
12.5 kHzKiloHertz (kHz) 10^3 Hz
0.0125 MHzMegaHertz (MHz) 10^6 Hz
Location Barnwell County, South Carolina
Short Description This sounds like a pager but PDW couldn't detect anything, so it might be some other digital communication.
I/Q Raw Recording Download file
Audio Sample

Check out http://www.sigidwiki.com/wiki/AFSK_Paging_Link. I have a good feeling this is what it is, or at least similar. --Cartoonman (talk) 06:09, 3 January 2016 (NZDT)


This is AFSKAudio Frequency-Shift Keying paging link, I can tell by the preambles and the data type (hence the almost Packet Radio type sound at 1200 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.), and the modulation of the idle. The idle sounds rather strange for an AFSKAudio Frequency-Shift Keying paging link, though. Ywsia1