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[edit]
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[edit]
Video Examples[edit]
Frequencies[edit]
- 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]
