Unknown 218.800

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Unknown 218.800
218mhz.JPG
Frequencies 218.800 MHzMegaHertz (MHz) 10^6 Hz218,800,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
218,800 kHzKiloHertz (kHz) 10^3 Hz
Frequency Range 218800000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).218,800 kHzKiloHertz (kHz) 10^3 Hz
218.8 MHzMegaHertz (MHz) 10^6 Hz
218800000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).218,800 kHzKiloHertz (kHz) 10^3 Hz
218.8 MHzMegaHertz (MHz) 10^6 Hz
Mode NFMNarrowband Frequency Modulation
Modulation
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 Central Florida
Short Description This is coming from a wastewater management RTU manufactured by Data Flow Systems. Their systems can use communication protocols such as "Modbus ASCII, Modbus RTU, Modbus TCP/IP, Allen Bradley DF1 Serial, Seiscore, Uniface, Motorola Intrac, TAC II Serial, and TAC II TCP/IP." Unknown type of modulation.
I/Q Raw Recording
Audio Sample

from looking at in signals analyzer, it looks like its using frequency shift keying, seems to be 4FSK4-Level Frequency Shift Keying. Can't tell for certain but baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. rate might be ~580-600 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.. So possible ~1200 bpsBits per second (bps) throughput. --Cartoonman (talk) 11:46, 11 January 2016 (NZDT)