37
Functions and Measurements
Measuring Multiple Signals
Comparing Signals not on the Same Screen
Using Marker Delta
The analyzer will compare the frequency and amplitude
differences between two signals which are not displayed on
the screen at the same time. (This technique is useful for
harmonic distortion tests.)
In this example, the analyzer’s 10 MHz signal is used to
measure frequency and amplitude differences between a
signal on screen, and another signal off screen. Delta marker
is used to demonstrate this comparison.
1 Preset the analyzer:
Press Preset (With Preset Type set to Factory)
2 Connect the rear panel REF OUT to the front panel RF IN.
3 Set the center frequency, span and reference level to view
only the 50 MHz signal:
Press Frequency > 50 > MHz
Press Span > 25 > MHz
Press Amplitude > 10 > dBm
4 Place a marker on the 50 MHz peak and then set the center
frequency step size equal to the marker frequency (10 MHz):
Press Peak Search
Press Marker > Marker To > Mkr -> CF Step
5 Activate the marker delta function:
Press Marker > Mode > Delta
6 Increase the center frequency by 10 MHz:
Press Frequency,
The first marker moves to the left edge of the screen, at the
amplitude of the first signal peak.
F
To Next Page
Loading...
