Shortwave Radio

Direction Finding

Radio Direction Finding Service

The Intruder Monitoring of the DARC e.V. has its own direction finding service.

A team of eleven qualified staff work in this service and take care of radio direction finding tasks in the shortwave spectrum.

They use a network of SDRs that are networked and can be operated remotely.

The physical basis of direction finding is the "Time Difference of Arrival, TDoA", i.e. the differences in the propagation time of a signal to different locations of reception.

A mathematical algorithm calculates coordinates from this, which give conclusions about the location of the transmission.

The Intruder Monitoring of the DARC owns its own remote receivers, which are exclusively available to us.