When a vehicle goes dark, find out what happened
Vehicles can now depend on GPS/GNSS, cellular data, Bluetooth, remote locking, telematics and other radio systems. A failure in one of those systems may be caused by a jammer — but it may also be a coverage issue, installation fault, damaged antenna, receiver problem or unrelated RF interference.
Our car jamming detector and vehicle jamming investigation service uses professional RF measurement equipment to examine what is happening around the vehicle rather than relying only on tracker logs or dashboard symptoms.
GPS / GNSS
Investigate loss of position, repeated satellite dropouts and gaps in asset or fleet tracking.
Cellular links
Check whether GSM, 4G or 5G interference coincides with missing data or tracker communication.
Remote systems
Measure interference around remote locking and other wireless systems where symptoms are repeatable.
What does a car jammer detector look for?
A useful detector does more than show that RF energy exists. In an investigation we are interested in the frequency, power, occupied bandwidth, duration and timing of the signal. That helps distinguish relevant interference from normal transmissions around the vehicle.
- GPS/GNSS interference around L-band navigation frequencies
- Cellular activity affecting tracker communications
- Broadband or swept RF interference
- Short-duration events that coincide with loss of tracking
- Location-specific interference around yards, depots or routes
Fleet, plant and asset-tracking investigations
For fleet operators, hire companies and plant owners, the most valuable question is often not simply “was there a jammer?” but “why did the tracking system stop reporting at this point?” We can compare RF conditions with operational evidence and, where practical, reproduce or monitor the failure.
Useful evidence includes: tracker timestamps, locations where dropouts occur, vehicle type, tracker model, network used and whether multiple assets fail in the same area.
Remote jamming detector vs professional investigation
A fixed or portable detector can warn when unusual RF energy appears, which is useful for ongoing monitoring. A professional investigation goes further by characterising the signal, assessing alternative causes and attempting to identify its source. The two approaches can complement each other.
How the vehicle investigation works
Review the symptoms
We examine tracking gaps, locations, times and the wireless services affected.
Survey the vehicle and RF environment
Relevant bands are measured with suitable antennas and spectrum-analysis equipment.
Compare RF activity with failures
Suspect signals are correlated with tracker, telemetry or vehicle-system behaviour.
Source location if practical
If the interfering transmitter can be captured reliably, direction finding may help narrow down its location.
Common non-jamming causes
Not every tracker dropout is malicious. Poor antenna placement, screened vehicle bodies, damaged coax, faulty trackers, weak mobile coverage, power interruptions and local RF congestion can all cause similar failures. The investigation remains evidence-led so these causes are not overlooked.