Locator non-directional radio beacon DF 2000

monitoringfor airport

The automatic direction finder (ADF) DF 2000 is intended for the bearing of aircraft (during the operation of on-board radiostation transmitter) via 2—16 frequency channels (depends on a delivered conguration). SYSTEM CONFIGURATION & FUNCTIONS The ADF provides bearing of AM-modulated VHF signals using a phase method. The ADF utilizes electric switching of array vibrators (adcock antenna), which causes the rotation of one vibrator. The ADF consists of: processing rack, antenna system, antenna with a test generator, remote control and monitoring equipment, and a shelter with a life-support system. FEATURES Frequency range 118–137 MHz Frequency spacing 25 kHz; 8.33 kHz Modulation type of the direction finding signal AM Modulation depth, at most ≤ 80 % Number of channels operating simultaneously 2—16 depending upon configuration Direction finding sensitivity by each channel, at most ≤ 3 мкВ/м Root-mean-square error of direction finding, at most ≤1° DIRECTION FINDING DISTANCE AT HEIGHT, AT LEAST: (150 ± 50) m ≥45 km (300 ± 50) m ≥65 km (1000 ± 50) m ≥120 km (3000 ± 50) m ≥200 km (10 000 ± 50) m ≥360 km