Making Basic Measurements Using Spectrum Analyzer Mode
Measuring
Example: The
Using the video bandwidth function, measure the amplitude of a
1.As in the first example, connect an antenna to the spectrum analyzer input. Set the spectrum analyzer to view a
2.Narrow the video bandwidth by pressing m, VID BW AUTO MAN , and the
A “#” mark appears next to the VBW annotation at the bottom of the screen, indicating that the video bandwidth is not coupled to the resolution bandwidth.
Instrument preset conditions couple the video bandwidth to the resolution bandwidth so that the video bandwidth is equal to or narrower than
the resolution bandwidth. If the bandwidths are uncoupled when video bandwidth is the active function, pressing VID BW AUTO MAN (so that AUTO is underlined) recouples the bandwidths. See Figure