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The heterodyne resonance indicator "GIR" since 1976 produced the Kursk plant Mayak. "GIR" is designed to configure various radio equipment, such as radio receivers, radio transmitters, televisions, antennas and other RF devices). "GIR" provides the frequency generation range up to 80 MHz, overlapped by interchangeable coils and the following fixed frequencies: 161; 249; 386; 465; 562; 912; 1,480 kHz provided by seven interchangeable coils. Smooth tuning to the resonant frequency of the tuned circuit is made by rotating the knob with the scale and according to the readings of the dial indicator. Error setting frequency -3%. The output voltage is not less than 0.1 V. Power supply from the network through the power supply. Power consumption 10 watts. Dimensions of the device 145kh67kh70mm. Dimensions of the power supply 145x45x48 mm.