LoJack

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LoJack
Lojack.jpg
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]

Additional Links[edit]

Additional Images[edit]