LoJack
 | |
|---|---|
| Frequencies | 173.075 MHz |
| Frequency Range | 173.075 MHz - 173.075 MHz |
| Mode | NFM |
| Modulation | FFSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 10 kHz |
| Location | Worldwide |
| Short Description | LoJack is a vehicle tracking system that allows vehicles to be tracked by police, with the aim of recovering them in case of theft via a small radio transceiver clandestinely installed in a vehicle. |
| I/Q Raw Recording | — |
| Audio Sample | |
LoJack is a vehicle tracking system that allows vehicles to be tracked by police, with the aim of recovering them in case of theft via a small radio transceiver clandestinely installed in a vehicle.
Bit rate: 1200 bits per second
Modulation rate: 1200 baudBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second.
Binary “0”/Space: 1.5 cycles of an 1800 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sine wave
Binary “1”/Mark: 1 cycle of a 1200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). sine wave
Samples
Example of an active vehicle beacon on 173.0750MHz with tower noise.
Can anyone identify the beacon low-hi noise in HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).?
https://www.sigidwiki.com/images/a/a8/LoJack_Summer_2017.wav
Decoding Software
Video Examples
Frequencies
- United States: 173.0750 MHzMegaHertz (MHz) 10^6 Hz
- France (under Traqueur S.A): 164.1750 MHzMegaHertz (MHz) 10^6 Hz, 167.0250 MHzMegaHertz (MHz) 10^6 Hz, 173.3750 MHzMegaHertz (MHz) 10^6 Hz
- Netherlands: 164.1750 MHzMegaHertz (MHz) 10^6 Hz (under ABS VHFVery High Frequency (30-300 MHz) Solutions B.V.)
- UK: 163.1625 MHzMegaHertz (MHz) 10^6 Hz, 164.1750 MHzMegaHertz (MHz) 10^6 Hz (Tracker Network (UK) Limited) - Retrieved from Ofcomm spectrum information Portal [1]
