R-311 Radio receiver


HF radio receiver R-311 "Omega"- USSR Soviet shortwave radio for military AM, CW.

HF radio receiver R-311 “Omega”- Soviet shortwave radio for military use with self-powered.

The receiver was developed in the design bureau of the Aleksandrovsky radio plant since 1949 on the basis of the R-253 “Alpha” receiver. Serial production began in 1954, entered service in 1956. Production continued until at least 1975. Produced at least 60,000 pieces.

HF radio receiver R-311 "Omega"- USSR Soviet shortwave radio for military AM, CW.

One of the most common tube connected receivers in the Armed Forces of the USSR. Intended for range 1 to 15 MHz in five scales. Receives AM, CW. The receiver is assembled according to a superheterodyne circuit with one frequency conversion on eight 2Zh27L pentodes.

HF radio receiver R-311 "Omega"- USSR Soviet shortwave radio for military AM, CW.

The frequency range of the receiver is divided into five sub-bands:
(I) 1.0 – 1.88 MHz
(II) 1.88 – 3.30 MHz
(III) 3.30 – 5.58 MHz
(IV) 5.58 – 9.20 MHz
(V) 9.20 – 15.0 MHz

The receiver is a superheterodyne design with one frequency conversion.

HF radio receiver R-311 "Omega"- USSR Soviet shortwave radio for military AM, CW.

Power options:
2KN-24 battery and VP-3M2 vibration sensor (continuous operation time not less than 12 hours)
Battery 2KN-24 and anode battery BAS-80 (time of continuous operation not less than 24 hours)
AC 127 or 220 V through a VS-3 rectifier

HF radio receiver R-311 "Omega"- USSR Soviet shortwave radio for military AM, CW.
HF radio receiver R-311 "Omega"- USSR Soviet shortwave radio for military AM, CW.
HF radio receiver R-311 "Omega"- USSR Soviet shortwave radio for military AM, CW.