Sorry, this page is not translated yet. Automatic translation used.
The radio for the Navy "R-677" (Whirlwind) was produced in 1959 by the Peter and Paul pb box P6641. Designed for pezpoiskovogo entry into the link and receive telephone, telegraph and single-band signals. The frequency range of reception: 100 ... 1500 KHz, divided into 4 sub-bands. An ADD converter block was produced to the receiver, which allows receiving frequencies from 3 to 110 KHz with a breakdown into 6 subbands and an IV-M block (its purpose has not been established). The sensitivity of the receiver when receiving telephone signals 10 µV, telegraph 2 µV. Superheterodyne with one transformation. Receiver weight (5 blocks) 100 kg. The main photo shows a complete set of radio "R-677" with 2 additional units.