1L267 Moskva-1

The 1L267 Moskva-1 is a ground-based passive radar system that can see and track all airborne targets at a distance of up to 400 kilometers. As said the Moskva-1 does not emit radar signals only receives and analyses the outer ones remaining invisible to the enemy. The passive radar system is able to classify a target as a missile or an aircraft. Then it can transmit the target's coordinates to a nearby air defense system or to the command post. Besides, the Moskva-1 passive surveillance radar can guide air defense jets to the target while keeping their radar off staying invisible to the enemy. The truck-mounted 1L267 Moskva-1 produced by the KRET corporation is expected to enter service with the Russian Armed Forces before the end of 2015.

deagel.com: https://www.deagel.com/x/x/a003128