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Technical specifications: DC voltage , Measuring range, 10 mv-1000V Measurement error, ± 0.01% AC voltage , Measuring range, 1 mV - 700 V Measurement error, ± 0.4% Frequency range, 20 Hz- 1 MHz Direct current , Measuring range, 0.2 µA - 10 A Measurement error, ± 0.15%

It is intended for use in higher and secondary educational institutions during laboratory workshops on training specialists in engineering and technical specialties and natural science disciplines. Technical specifications: Upost.- 0.1 mV - 500 V; Uperem.- 1 mV-300 V (40 Hz-20 kHz) Ippost. - 0.1 mkA- 2 A; Iperem. - 1.0 mkA - 2 A (40 Hz-1 kHz) Rpost. - 0.1 Ohm – 20 mOhm Generation of triangles, pilobr., "meander", sinusoid. signal in the frequency range 0.1 Hz – 1 MHz Frequency measurement in the range of 0.1 Hz – 1 MHz The form of the measured signals is sine, pulse Constant voltage: at a current of 1 A - + 5 V at a current of 0.5 A for each channel - ± 12 V Adjustable Uppost. at a current of up to 1 A - 0 – 30 V Dimensions - 170x340x380 mm Power supply – 230 V, 50 Hz, 200 VA - max. Weight – 8.0 kg

Technical specifications: Wide frequency range 25 Hz–1 MHz Capacity (10-15-1) F Inductance (10-11-104) Gn Resistance (10-5-109) Ohms Conductivity (10-11-10) Cm Modulus of complex resistance (10-5-109) ohms Reactance (10-5-109) Om Phase shift angle -90° – +90° Q factor, loss factor 10-4-104 Leakage current (10-8-10-2) A The error is ±0.1% Offset voltage 0 – 40 V (external up to 120 V) Measuring signal level (0.04 – 1) V RS-232C interface Mathematical processing of measurements Dimensions, weight: 127x298x300 mm, 4 kg Power supply ~220 V, 20 VA

Created on the basis of the G4-230 generator. Remote frequency converters extend the frequency ranges up to 53.57 GHz (G4-235) and up to 78.33 GHz (G4-236). The generators are capable of operating both independently and as part of automated measuring systems with USB and IEEE-488 (CPC) interfaces. Technical specifications The frequency range at the output of the base unit is from 5 to 20 GHz Frequency range at the output of the frequency converter (G4-235) from 37.5 to 53.57 GHz The frequency range at the output of the frequency converter (G4-236) is from 53.57 to 78.33 GHz Frequency tuning discreteness 0.001 Hz The main error of the frequency setting is ± 3x10-7 Hz The range of setting the signal power level at the output of the base unit is from minus 110 to 13 dBm The range of setting the signal power level at the output of the frequency converter (G4-235) is from 0 to 13 dBm The range of setting the signal power level at the output of the frequency converter (G4-236) from 0 to 10 dBm The basic error of setting the reference power level is ± (1.0 – 2.5) dB Metrological characteristics of the generator in FM operation mode: - frequency range of the modulating signal from 1 Hz to 20 kHz - frequency deviation setting range (taking into account the carrier frequency value) from 1 Hz to 200 kHz - the main error of the frequency deviation setting is ± (5 – 18)% Metrological characteristics of the generator in AM operation mode: - frequency range of the modulating signal from 0.05 to 5.0 kHz - the range of setting the amplitude modulation coefficient from 1 to 50 % - the basic error of setting the amplitude modulation coefficient ± (0.15 M + 0.2)% Metrological characteristics of the generator in the IM operation mode: - the duration range of modulating pulses from 100 ns to 20 s - the range of the modulating pulse repetition period from 140 ns to 30 s - the difference in the duration of the output RF pulses from the duration of the modulating pulses ± 100 ns Operating temperature range from 5°C to 40 °C AC power supply 220 V, 50 Hz Power consumption, no more than 150 VA Overall dimensions, mm 498x136x487 Weight, not more than 20 kg

It is intended for the study of periodic electrical signals by visual observation and measurement of their amplitude and time parameters on the scale of the CRT screen in the frequency band 0-50 MHz, as well as for monitoring the parameters of two- and three-pole devices using a component tester. Technical specifications: Number of channels 2 Bandwidth 0 - 50 MHz Deviation coefficients of 2 mV/div - 20 V/div (step1-2-5) Installation error ± 3%, ± 4% with a 1:10 divider Rise time of PH <= 7 nsec Input impedance is 1 mOhm/25 pF, with a divider of 1:10 - 10 mOhm/23 pF Harsh operating conditions (-10°C to +40°C) Bandwidth 0 - 50 MHz Two channels Indication of deviation and sweep coefficients on LED matrices Tenfold stretching of the sweep Calibrator 0.6 V, 1 kHz (± 1%) X-Y mode Built-in Component Tester Screen 80x100 mm Weight 6,8 kg

System meter of small currents. The device allows to make measurements in almost the entire range of currents. The picoammeter is characterized by high performance, which is important for its use as part of automated measuring systems. Technical specifications: Current measuring range 1x10-14 - 1x10-2 A Error for the range 10-11, 10-10 ±[0.5+0.025(lk/lx-1)]% for the range 10-9, 10-8 ±[0.25+0.01(lk/lx-1)]% for the range 10-7, 10-6,10-5, 10-4,10-3, 10-2 ±[0,1+0,01( lk/lx-1)]% The time of setting the readings is 2x10-2 - 2x10-5 s Supply voltage 230 (±20) V, frequency 50 (± 0.5) Hz Power consumption 10 VA Overall dimensions (HxWxD) 105x284x366 mm Weight 3.5 kg Operating temperature 5 - 40 °C Humidity 80% at 25 °C

Technical specifications: Extended frequency range 25 Hz–10 MHz The basic error is ±0.1 % The level of the measuring signal is 5 mV – 1 V S.K.z. Offset voltage (0 – 40) V The discreteness of the operating frequency setting is 1 Hz Graphical analysis of measured values in a given frequency range USB 2.0 interface

Technical specifications: Frequency range (300-1000) MHz SWR < 2 The limit of permissible error of the antenna coefficient, not more than ± 2.0 dB Orthogonal polarization signal level -20 dB Ambient air temperature from - 50 to + 60 Relative humidity of 95 % at + 35 ° C Overall dimensions (HxWxD) 400x145x150 mm Weight 1 kg

The generator is capable of operating both independently and as part of automated measuring systems with USB and IEEE-488 (CPC) interfaces. Technical specifications Frequency range (RF output) from 9 kHz to 6 GHz Frequency range (LF outputs) from 0.001 Hz to 30 MHz Frequency tuning discreteness (RF output) 1 Hz Frequency tuning discreteness (LF outputs) 0.001 Hz The main error of the frequency setting is ± 3x10-7 Hz The range of setting the output signal power level at the main RF output is from minus 120 to 13 dBm The range of setting the signal amplitude at a load of 50 ohms (LF outputs) from 0.01 to 5 V The basic error of setting the reference power level (RF output) ± (0.5 – 1.0) dB The basic error of setting the amplitude of sinusoidal signals (LF outputs) ± (3 – 15)% Instability of the signal power level for any 15-minute time interval (RF output) no more than 0.1 dB Metrological characteristics of the generator in the FM operation mode: - frequency range of the modulating signal from 1 to 100 kHz - frequency deviation setting range (taking into account the carrier frequency value) from 12.5 to 4000 kHz - the basic error of setting the frequency deviation ± (10 – 20)% Metrological characteristics of the generator in AM operation mode: - frequency range of the modulating signal from 0.05 to 5.0 kHz - the range of setting the amplitude modulation coefficient from 1 to 100 % - the basic error of setting the amplitude modulation coefficient (when operating from an internal signal source) ± (0.15 M + 0.2)% Metrological characteristics of the generator in the IM operation mode: - the duration range of modulating pulses from 100 ns to 20 s - the range of the modulating pulse repetition period from 140 ns to 30 s - the difference in the duration of the output RF pulses from the duration of the modulating pulses ± 100 ns Operating temperature range from minus 10 to 40 °C AC power supply 220 V, 50 Hz Power consumption, not more than 100 VA Overall dimensions, mm 498x136x487 Weight, not more than 15 kg

Technical specifications Material: S-TIH53 (Ohara) Length, mm: 12 Height, mm: 1.0±0.02 Thickness, mm: 0.36±0.01 Refractive index, mm: 1.823 Effective focal length, mm: 0.29 Rear focal length, mm: 0.09 Transmission, %: >99.5 Power within the angle ± 2.3 mrad, %: >85 Antireflection coating, nm at one of the wavelengths from the range: 400-1500 Numerical aperture: 0.5 Surface quality λ = 633, nm: λ/4

Technical specifications Material: S-TIH53 (Ohara) Length, mm: 12 Height, mm: 1.0±0.01 Thickness, mm: 1.9±0.1 Refractive index, mm: 1.823 Optical aperture, mm2: 10.5*0.45 Back focal length, mm: 0.09 Transmission, %: >99.5 Pitch, mm: 0.4 Antireflection coating, nm at one of the wavelengths from the range: 400-1500 Numerical aperture: FA: 0.6, SA:0.09 Surface quality at λ = 633 nm: λ/4 Residual deviation at full angle FW1/e2 mrad: <7, <10, <13

XFP (10-Gigabit Small Form Factor Pluggable) is a protocol—independent hot-swappable optical transceiver, usually operating at 850nm, 1310nm or 1550nm wavelengths or wavelengths from the CWDM band at a speed of 10 gigabits per second in SONET/SDH, Fiber Channel, Gigabit Ethernet, 10 Gigabit Ethernet and other applications, including WDM channels.