HF radio receiver, nicknamed ‘Omega’, for AM (Amplitude Modulation) or CW (morse), in the frequency range of 1 to 15 MHz.
Used by the Soviet military, the Warsaw Pact countries, and the Arab countries from 1950s until 1970s, designated R-311.
Five bands: 1.0 to 1.88 MHz, 1.88 to 3.30 MHz, 3.30 to 5.58 MHz, 5.58 to 9.20 MHz, 9.20 to 15.0 MHz.
Power supplies for 24 Volts DC or 220 Volts AC.
Weight: 21 Kg.
Vacuum tubes technology, super-heterodyne with 465 kHz intermediate frequency.
