How to Find a Lost Drone When GPS Is Jammed
Notes from a Ukrainian GPS tracker maker on what a tracker can do after a crash under electronic warfare, and where its limits are.
We have been making GPS trackers in Poltava, Ukraine, since 2010. For most of that time our customers were car owners worried about theft. Over the last two years a different kind of request has become common. Drone operators and volunteers ask a simple question. If the drone goes down, will we find it?
The honest answer is that a tracker raises the odds a lot, but it is not magic. Here is what actually works, based on what we hear in support calls every week.
Why is ordinary GPS not enough?
Near the front line a drone faces two problems. Jamming drowns out satellite signals, so the receiver sees nothing. Spoofing is worse. The receiver gets fake signals and reports a position that can be kilometres away from the real one, and on the map it looks perfectly normal.
A tracker that relies on GPS alone fails in both cases. A useful tracker needs several independent ways to say where it is.
Layer one. More satellites, more systems
A modern receiver listens to GPS, GLONASS, Galileo, BeiDou and QZSS at the same time, up to 30 satellites. Without interference this gives a position within 2–5 metres. It also helps when part of the sky is blocked by terrain, buildings or the drone’s own body after a crash.
Layer two. A connection that will still exist next year
Coordinates are useless if the tracker cannot send them. We use 4G LTE with 2G as a fallback. 4G is fast and widely available, and 2G still covers places where 4G is weak.
The network generation matters more than people think. In September 2026 Kyivstar finished switching off 3G across Ukraine, and every 3G-only device lost its connection. 2G is being switched off across Europe right now, so a 2G-only tracker bought today has a known expiry date.
There is also a fallback inside the fallback. If mobile data is gone but the tracker still sees satellites and has even 1–3% of signal, our team can get the coordinates by SMS.
Layer three. Wi-Fi when satellites are gone
When GPS is jammed, the tracker can scan the Wi-Fi networks around it, from routers in houses, shops and farm buildings. Each network has a unique address, and a location database turns a list of nearby networks into a point on the map. No passwords are needed. The tracker never connects to these networks, it only sees that they exist.
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This works well near villages and roads. In an open field with no buildings around it has nothing to work with, which is why there is a fourth layer.
Layer four. Finding the SIM card itself
If there are no satellites and no Wi-Fi, the tracker still has its SIM card. The operator on our hotline can estimate the zone where it is by direction finding the SIM card, taking into account the signal strength to every nearby cell tower. It needs as little as 1% of GSM signal, and typical accuracy is 50–300 metres. The result comes as a zone on Google Maps.
That is not a pin, but in practice it is often enough to send a second drone over the zone and finish the search visually.
SIM Location result: the tracker is inside the red zone, about 120–284 m from the zone centre
What about spoofing?
Spoofing is the hardest case, and we prefer to be careful here. A filter in the firmware rejects physically impossible jumps in coordinates with high probability. If a tracker has clearly been spoofed, we can reset it remotely, which often helps it return to real coordinates faster. How well this works depends on the strength of the electronic warfare, the terrain and the state of the drone.
How big should the battery be?
Under jamming, a tracker that sleeps between reports may simply miss its chance. We recommend full online mode without power saving, so the device keeps trying. That costs battery. A 6000 mAh unit like our Middle PRO (125 g) gives roughly 70 hours of full online work, which covers most recovery situations. For small drones where every gram counts, a compact 2000 mAh beacon of around 60 g is the compromise.
Does the tracker reveal where you launched from?
It can, if the server keeps a full movement history. For drone units we run the main server without recording movement history, so the route and the launch point are not stored anywhere. A second server with track recording is available for those who need it.
The honest limits
A tracker greatly improves the chances of finding a lost drone, but it does not guarantee it. The result depends on what happened to the drone in the crash, whether there is any mobile signal in the area, how strong the electronic warfare is and what the terrain looks like. Anyone who promises 100% is not telling the truth.
If you want to see the models we make for drones, they are on our drone tracker page. Questions are welcome in the comments.
Vitalii, founder of Ibag
