Question
The frequency of my signal can be measured with normal markers, but I want to
have it more accurate. Is there any solution and what is the reason for the
limited accuracy?
Use of Frequency Counter
Answer
The frequency resolution of the marker readout is limited by the number of display points on the frequency axis.
This limits the accuracy.
Especially in the case of large span values, the absolute frequency error can be significant. If the measurement
signal is not exactly on the grid, this will cause a frequency error when markers are used for measuring.
The error is directly related to the limited number of measurement points.
The MARKER COUNT softkey allows you to activate a frequency counter that counts the frequency of the signal
at the marker position. You do not have to change the setup to use it. The counter can be activated with sweep
setting in the MARKER menu. The frequency resolution can also be changed. Since this function counts the
actual signal frequency, it is more accurate than the built-in frequency reference of the analyzer.
