What sensors on the BackTrack Mini don't require a GPS signal

1. Digital Compass: This sensor provides directional information, allowing users to navigate based on magnetic bearings rather than relying on GPS coordinates.

2. Altimeter: The altimeter measures altitude, which can be useful for tracking elevation changes during outdoor activities.

3. Barometer: This sensor can provide atmospheric pressure readings, which can be used to infer weather changes and assist in navigation.

These sensors allow the BackTrack Mini to function effectively in situations where GPS signals may be obstructed or unavailable, such as indoors or in dense urban environments[5][8].

Citations:
[1] https://forum.arduino.cc/t/undetectable-arduino-gps-tracker/482979
[2] https://www.amazon.com/goTele-Required-Portable-Off-grid-Tracking/dp/B07DJTN1LS
[3] https://discuss.ardupilot.org/t/autopilot-rc-rover-track-field-pacer/60590
[4] https://spycentre.com/blogs/news/gps-detectors
[5] https://www.bushnell.com/speakers-and-gps/backtrack-mini-gps/BU-GPSBTM.html
[6] https://www.sciencedirect.com/topics/computer-science/compass-sensor
[7] https://www.linkedin.com/pulse/what-material-block-gps-signal-tracking-system-direct
[8] https://www.bushnell.com/on/demandware.static/-/Library-Sites-HuntShootAccessoriesSharedLibrary/default/dw8db14c1e/productPdfFiles/BackTrackGPSMini_1L_Manual_0422.pdf

Can the BackTrack Mini use Wi-Fi or cellular signals for tracking

The BackTrack Mini GPS device does not utilize Wi-Fi or cellular signals for tracking. It primarily relies on GPS technology for location tracking, which means it requires a clear line of sight to satellites to function effectively. While there are other tracking systems that can use Wi-Fi or cellular signals, the BackTrack Mini is designed specifically as a GPS-only device, focusing on simplicity and outdoor navigation without the need for additional connectivity methods[5].