The Rockwell Collins DF-430F direction finder system is designed for Tactical Direction Finder (DF) missions in the 30-400 MHz frequency range regardlessof the type of signal (AM, FM, PM, etc.); and Search and Rescue (SAR)
missions on 121.5 MHz, 243MHz, Cospas/Sarsat (406.025 MHz) beacon. It is also capable of receiving Argos beacon as well as maritime channels in the 156-174 MHz range.

Alongside its outstanding civilian SAR capabilities, the DF-430F can also fulfil a number of key military roles including tactical DF missions, anti-submarine and maritime patrol missions. The DF-430F is a stand-alone system and its
integration into aircraft has minimum disturbance to existing on-board systems. The key components installed by this modification are one ANT-430F DF antenna, one RPU-430F receiver processor unit and one BC-125F control unit. In addition, the DF-430F also has universal interface ability which allows it to integrate with existing aircraft platforms by MIL-STD-1553B or Arinc429 buses.

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