Unknown 468p003

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Unknown 468p003
468.003MHz-Moving.png
Frequencies 468.000MHz468,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
468,000 kHzKiloHertz (kHz) 10^3 Hz
,468.005MHz468,005,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
468,005 kHzKiloHertz (kHz) 10^3 Hz
Frequency Range 468000000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).468,000 kHzKiloHertz (kHz) 10^3 Hz
468 MHzMegaHertz (MHz) 10^6 Hz
468005000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).468,005 kHzKiloHertz (kHz) 10^3 Hz
468.005 MHzMegaHertz (MHz) 10^6 Hz
Mode USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables)
Modulation N/A
Bandwidth 5000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).kHzKiloHertz (kHz) 10^3 Hz
0.005 MHzMegaHertz (MHz) 10^6 Hz
kHzKiloHertz (kHz) 10^3 Hz
0.005 MHzMegaHertz (MHz) 10^6 Hz
kHzKiloHertz (kHz) 10^3 Hz
0.005 MHzMegaHertz (MHz) 10^6 Hz
Location Chicago, IL, USA
Short Description

Message coded on 3 to 8 tones. Frequencies changing randomly.

Transmitting continuousely
I/Q Raw Recording
Audio Sample

FSKFrequency-Shift Keying signal, seems to be 3 or 8 tones. The baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. rate is very slow. The frequency shift is either intentional or this is doppler shifted, like a satellite? Due to the strength of the signal, I think this would be more local.

Samples[edit]

Decoding Software[edit]

Found using SDR# and RTL-SDR dongle, 6 inch telescopic antenna by the side of the window, this signal is very strong.

SDR#