The R676 receiver was designed for use on submarines, shore stations and also in radio intelligence. It served as a replacement for the R672 Tuman which could not be used in automatic reception mode. It provided reception in the VDV (very long wave) band used for communication with submerged submarines.
Range 12 to 64 kHz in three subranges
Operations A1, F1
Sensitivity to open antenna 10 microV, to frame antenna 0.003 microV
Scale calibration first two subranges 100 Hz, third 200 Hz
Receiver dimensions 491 x 408 x 455 mm
Weight 75 kg
Source: Krasnye uši
Range 12 to 64 kHz in three subranges
Operations A1, F1
Sensitivity to open antenna 10 microV, to frame antenna 0.003 microV
Scale calibration first two subranges 100 Hz, third 200 Hz
Receiver dimensions 491 x 408 x 455 mm
Weight 75 kg
Source: Krasnye uši