MORAD Direction Finder VHF/UHF Radio Direction Finding System for Enemy Emitter Location

The MORAD Direction Finder is the portable radio direction finding system designed for signals intelligence (SIGINT) units, electronic warfare, and security forces that need to determine the geographic location of a radio emitter in the field — from an enemy communications network in an operations zone to an illegal radio station in a city — without revealing the search team's presence through their own transmissions.

The system operates across the full 20 to 3,000 MHz band covering low VHF (20-88 MHz), high VHF (88-174 MHz), UHF (225-512 MHz), and low microwave bands up to 3 GHz, with the digitally processed 8-element Adcock antenna providing azimuth accuracy of 2° RMS on continuous signals and 5° on short pulsed signals — sufficient for cross-azimuth location at operational distances of 5 to 30 kilometers depending on the target emitter's power.

Triangulation location requires three measurement stations operating simultaneously with GPS synchronization: each station reports its measured azimuth to the central fusion server through the tactical data network, and the fusion software calculates the probable emitter position from the intersection of direction-of-arrival (DOA) lines, presenting the result on a GIS map with location error ellipse updated in real time. The time from first transmission by the emitter to first appearance on the map is under 15 seconds under typical operational conditions.