What is the sweeping generator?
sweeping generator is an electronic test generator that creates a periodic saw designed to adjust the output of the second signal generator, which is usually a radio frequency generator (RF). The periodic course rises to the level of peak and then drops rapidly to low level and then repeats the process. The output of the sweeping generator can be used to control the frequency output of the signal generator to generate the output of the frequency sweeping. In general, the sweeping generator allows you to set the testing almost simultaneously to measure the response of the device within the frequencies or frequency range. Whenever RF circuits or electrical circuits have a specific frequency response, sweep generators can generate a test signal that will cover a specific frequency range. The basic sinus wave or sinus wave is a regularly changing voltage that smoothly cycling from zero to positively, then to zero, then negative peak and back to zero. The complete cycle will have two zero points and two peak points,that are positive and negative.
The frequency domain description is used when the tested device operates to a certain frequency range. The frequency range of the device can be evaluated using the sweeping generator and the spectrum analyzer corresponding to the test device. It has a two -dimensional screen showing both vertical performance levels and horizontal frequency reading. When monitoring the signal by using the spectrum analyzer, the vertical axis is still amplitude in Watts (W), but the horizontal axis is frequency, in Hertz (Hz) instead of time units.
In amplifier with transistor circuits, inductors and capacitors, there are expected profits or clean amplification in the frequency range. For RF power, the measurement of the amplifier is observed. If the output is 1 W while the input is 0.01 W, there is a profit 100. Since the center frequency is actually 150 megahertz (MHz) is the usual additional PArameter of the bandwidth concerned, which is the range of frequencies below and above the center, where the profit is half of the profit at the center frequency. This is also referred to as "–3 dB" points, where –3dB refers to half the profit.
If the –3dB point 148 MHz and the upper –3dB point is 152 MHz, the power amplifier is referred to as a frequency range of 148-152 MHz. The sweeping generator can then be set so that its lower frequency is 148 MHz. The upper level of the sweeping generator causes 152 MHz at the output of the signal generator. If the SawTooth generator is off inside the sweep generator, the signal generator output ceases to sweep the 148-152 MHz range. Without a sweeping generator, the output of the signal generator will be at a fixed frequency of about 150 MHz.