3MHz3,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 3,000 kHzKiloHertz (kHz) 10^3 Hz,30MHz30,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 30,000 kHzKiloHertz (kHz) 10^3 Hz3,000 kHzKiloHertz (kHz) 10^3 Hz 3 MHzMegaHertz (MHz) 10^6 Hz30,000 kHzKiloHertz (kHz) 10^3 Hz 30 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range
3 MHzMegaHertz (MHz) 10^6 Hz3,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 3,000 kHzKiloHertz (kHz) 10^3 Hz - 30 MHzMegaHertz (MHz) 10^6 Hz30,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). 30,000 kHzKiloHertz (kHz) 10^3 Hz
Mode
USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables)
Modulation
FSKFrequency-Shift Keying,PSKPhase-Shift Keying
ACFAutoCorrelation Function
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Bandwidth
3100 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).3.1 kHzKiloHertz (kHz) 10^3 Hz 0.0031 MHzMegaHertz (MHz) 10^6 Hz3.1 kHzKiloHertz (kHz) 10^3 Hz 0.0031 MHzMegaHertz (MHz) 10^6 Hz3.1 kHzKiloHertz (kHz) 10^3 Hz 0.0031 MHzMegaHertz (MHz) 10^6 Hz
Location
Israel
Short Description
Israeli based VFTVoice Frequency Telegraphy transmission, most likely used by Israeli government or military.
I/Q Raw Recording
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Audio Sample
Israeli VFTVoice Frequency Telegraphy transmission, most likely used by Israeli government or military.
Has been seen with a number of modes. Seen with 4xPSK-75, 1xFSK-150, and both 4xPSK-75 and 1xFSK-150 together.
The 4xPSK-75 data stream takes about 1.25kHz and the 1xFSK-150 1.8kHz, largely due to the shift. Putting both together in one VFTVoice Frequency Telegraphy has a total of 1.8kHz bandwidth, with the 4xPSK-75 fitting in right below the 1xFSK-150, taking up the free space.