Either mechanical or electronic variations can be brought to the frequency of the output signal of the signal generator.
The difference frequency between the two readings is the sweep width.
A fairly high level into the diode detector is desirable to ensure that the zero reference error is minimal.Related Article, signal generators, a sweep frequency generator is a type of signal generator that is used next discount code october 2015 to generate a sinusoidal output.When AC coupling is used, the position of zero reference must vary with the amplitude and shape of the plotted curve.(If you do not require this functionality, you can simply leave these boxes at their default setting, which will produce an equal volume sweep.).To set up for a given output frequency, it is only necessary to set the external signal generator to a frequency 1MHz removed from the required frequency.To measure bandwidth, a simple procedure has been adopted.Link to this page: a Generator /a).(Blips on the trace normally show up to mark where the sweep starts and finishes).(Most oscilloscopes have a switch for this purpose).The X-axis of an oscilloscope or X-Y recorder can be easily driven synchronously with a voltage that varies linearly or logarithmically. .If in doubt, a check can be made of the RF waveform across R6, using the CRO.If there is a problem of stability, it will show up particularly at the high frequencies.