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EM Finder – detecting coordinates of EM sources

About Project

Solving security issues connected to detecting and estimating direction of an emitter of electromagnetic activity.


To develop a portable radio direction finder (EM Finder) on board a UAV for determining the coordinates of point sources of EM radiation.


The direction finder consists of one unit, the radio receiver of which consists of four antennas. By measuring the phase shift of the signal on each of the antennas, the device determines the direction of EM source. EM coordinates of the source are determined based on a series of angular measurements of the source from different points on the flight (or move) by solving the triangulation problem. Devices can be built on the basis of antenna systems on masts, mobile devices and radio stations of an operator. Interesting is the mobile version of the direction finder on board a car, and even more so on board UAV moving along route. and is used for operational detection of EM source coordinates.


  • Assistance to the Ukrainian military.
  • Assistance to critical infrastructure and country’s activity.

3 month / 150 000 euros.

UA side: Ukrecoconsult LLC, CEPA LLC, Kray Technologies LLC.

Contact persons:
UkrEcoConsult LLC, Olegh Bondarenko,
Dmytro Gulevets,

EU side: XY-Sensing.

Producing equipment and/or providing services to protect critical infrastructure and military objects in country's activity.

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