Low-frequency signal generator GZ-111.
Instruments for adjusting and controlling the PTA.The low-frequency signal generator "GZ-111" has been produced since 1985. An RC-type generator with a smooth frequency setting within each of the five sub-bands is designed for tuning and testing various radio equipment. The generator is the source of a sinusoidal, in aux mode and a square wave. The oscillator frequency can be synchronized with an external arbitrary waveform. The generator "G3-111" implements a stabilization system of the output voltage, which ensures a uniform frequency response of the generator and a constant level under the influence of destabilizing factors. Voltage regulation of the "G3-111" generator is smooth and discrete over a wide range. Generator characteristics: Frequency range 20 Hz - 2 MHz (5 sub-bands). Additional frequencies allow the generator to be used as an RF generator for tuning equipment with operating frequencies up to 2 MHz. The basic error of frequency setting is ± [1 + (50 / f)]%. Output voltage 5 V (600 ohms). Attenuation of the output voltage 0-60 dB with a discreteness of 20 dB (with an attenuator); -22 dB (infinitely variable). Change in output voltage with frequency tuning (relative to the voltage level at a frequency of 1 kHz) ± 1.5% (20 Hz-100 kHz), ± 5% (over 100 kHz). Harmonic coefficient,% 0.5 (20-200 Hz; 20-200 kHz); 0.3 (200Hz-20KHz); 1 (200 kHz-1 MHz); 2. (1-2 MHz). Parameters of a rectangular signal amplitude (peak-to-peak) 10 V (600 ohms). Power consumption 20 VA. The dimensions of the generator are 189x180x335 mm. Weight 5 kg.
