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Radio "R-254M" (Link) was produced since 1972. Wearable search VHF radio receiver radio networks VDV, designed for radio reception in the range 39 ... 52 MHz. Produced 20 series of 8 fixed frequencies separated by 100 kHz. Double frequency conversion. The first IF variable is 5.9; 6.0; 6.1 and 6.2 MHz; the second IF is constant 465 kHz. Sensitivity 20 µV / m. The receiver operates in search and receive modes. In the search mode, the receiver can be used to search for objects having marker transmitters (dropped cargo), and in the receive mode to receive one-way communication commands.