Tamara passive sensor

Tamara was the third generation Czechoslovak electronic support measures (ESM) system that used measurements of time difference of arrival (TDOA) of pulses at three or four sites to accurately detect and track airborne emitters by multilateration.

The designation was derived from the Czech phrase "Komplet Radiotechnického Průzkumu" meaning "Radiotechnical Reconnaissance Set".

Unlike its predecessors, Tamara was a mobile system deployed on eight large Tatra T815 trucks and mounted upon a powerful 25 m hydraulic mast.

Setup was completely automated and claimed to be to be put into operation in twenty minutes from the arrival at a site.

The nominal range of the system is 450 km, and it is generally limited by the radio horizon.