Generator G3-7A (G 3-7A; G-3-7A; g 3-7a; g-3-7а).
Generator G3-7A - The instrument used to test and adjust the various broadband video frequency, check and adjust the video amplifiers of various electronic equipment.
Key Features G3-7A
- Frequency range 20Hz - 10MHz;
- The frequency of error of ± 2% ± 2 Hz;
- The output voltage at the load 75 ohm: 0 - 2B;
- Output voltage at 1000 ohm load: 1 - 30V;
- The main error of the voltage levels of 5 - 10%;
- Harmonic Distortion: 3%;
- Power supply voltage: 220V, 50Hz;
- Power consumption of 350W.
Unit Dimensions - 540h370h370 mm, weight - not more than 30 kg. Generator G3-7A can be used to remove the frequency characteristics of amplifiers, line filters.
Technical characteristics of the generator G3-7A
The range of frequencies generated by the following sub-bands:
3rd 2kHz to 20kHz;
6th 500kHz-1,4 MHz;
7th-4 MHz 1.4 MHz;
At each sub-band device G3-7A, except at the 1st sub-band, the stock of Mr. overlap at the edges of at least 5% of the frequency sub-bands at the digitized point. The basic error of the frequency does not exceed ± 2% ± 2 Hz hectare in all frequency ranges.
Generators G3-7A have the following error of the output voltage at the socket 0-30V:
- In the frequency range from 30Hz to 5MHz not exceed ± 5% of the nominal value of the relevant range of the instrument;
- In the range of 20 Hz to 100 Hz and from 5MHz to 10MHz does not exceed ± 10% 'of the nominal value corresponding to the scale of the instrument
Spurious amplitude modulation of the output signal G3-7A frequencies 1st - 4th sub-bands is not more than 5%. Additional error of the output voltage at the end of the cable attaches to on Mr. ruzochnym resistance does not exceed 15% in the frequency range from 20Hz to 10MHz
Frequency response unit G3-7A within each subband not exceed:
- 2D6 in the frequency range from 20Hz to 200kHz;
- 3dB over the frequency range from 200 kHz to 500 kHz;
- 3.5 dB in the frequency range from 500 kHz to 1.4 MHz;
- 4.5 dB in the frequency range from 1.4 MHz to 4 MHz;
- 7.5 dB in the frequency range from 4MHz to 10MHz.
Total harmonic distortion at the output voltage up to 30V and load 1000Om not exceed:
- 3% for frequencies from 20Hz to 20kHz;
- 5% at frequencies from 20Hz to b0Gts.
Generators G3-7A allow continuous operation for eight hours, including time samoprogreva. The pre samoprogreva device is no more than an hour. MTBF - 800 minutes.
Operating conditions G3-7A
For optimum performance the ambient temperature should be 5 ° ± 2 ° C, relative humidity 65 ± 15%. Atmospheric pressure 750 ± 30 min Hg. Art.
Operating conditions generator G3-7A
- Ambient temperature of +10 to +35 ° C;
- Relative humidity up to 80% at a temperature of 20 ° C.