FAQ Archive
GPSController FAQs - Page 198
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FAQ
What is a 'ghost track' and why does it occur during satellite signal switching?
A 'ghost track' occurs when a GPS device displays the last known position while trying to acquire new satellite signals. During the 2-4 minute handoff period, the vehicle continues moving but the tracking system shows it...
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When should logistics operations consider abandoning satellite-only tracking systems?
When signal loss delays exceed operational tolerance—typically when it starts affecting convoy routing or safety protocols. The practical solution integrates inertial and cellular-based positioning to bridge satellite ga...
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What compliance risks are created by delayed tracking data during satellite signal handoff?
Significant compliance risks exist. Contracts for war zone logistics often mandate real-time tracking with no gaps exceeding 60 seconds for audit trails. Signal handoff delays create unverifiable logs, which breaches con...
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Is Galileo satellite navigation more secure against jamming than GPS in conflict zones?
No, Galileo is not inherently more secure than GPS. Modern electronic warfare systems target all civilian satellite navigation frequencies, making Galileo equally vulnerable to broad-spectrum jamming. The entire fallback...
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How long does it take for GPS devices to switch to Galileo satellites as a fallback in war zones?
Under ideal conditions, switching from GPS to Galileo takes 15-45 seconds. However, in active jamming environments in 2026 conflict zones, you should expect 2-4 minutes of complete positional blackout where vehicle locat...
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What are the practical impacts of dead reckoning errors on fleet management?
Dead reckoning errors can cause geofence alerts to fire incorrectly for assets that never actually moved, create positional ghosts where vehicles appear to drive through buildings or fields, and make compliance logs for...
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When should fleet managers consider alternatives to dead reckoning for GPS-denied zones?
Fleet managers should seek different solutions when making operational or safety decisions based on the data, such as dispatching assets to drifted locations or requiring precise proof-of-location for customer billing. I...
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What vehicle data does the GPS Controller use for dead reckoning backup?
The system primarily uses wheel speed sensors from the CAN bus to calculate distance traveled, along with gyroscope and accelerometer data (IMU) to sense turns and direction changes. It does not use cameras or map data,...
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Can dead reckoning maintain ELD compliance in GPS dead zones?
No, dead reckoning cannot maintain Electronic Logging Device compliance in GPS-denied zones. ELD rules require reliable location recording, and dead reckoning provides only estimates, not verified positions. If GPS gaps...
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How accurate is dead reckoning when GPS fails for fleet vehicles?
Dead reckoning accuracy degrades over time without GPS signals, with error building at roughly 1-3% of the distance traveled. For example, a 5-minute drive through a tunnel at 60 km/h could result in position errors of 1...
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When should we implement alternative tracking approaches instead of trying to fix AIS issues internally?
You should change your approach when the lack of AIS data prevents you from meeting mandatory reporting requirements for the zone you're in. If you can't generate compliant position logs for authorities, internal softwar...
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Why is AIS signal loss particularly problematic for maritime operations in 2026?
In 2026, evolving regional conflicts and advanced electronic warfare tactics have made AIS jamming and spoofing more common. Additionally, compliance regimes for maritime safety and sanctioned zones increasingly demand u...
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