Specifications

16 Chapter 2
Measuring Multiple Signals
Comparing Signals not on the Same Screen Using Marker Delta
Measuring Multiple Signals
Step 3. Set the center frequency, span and reference level to view only the
10 MHz signal:
Press
FREQUENCY Channel, Center Freq, 10, MHz.
Press
SPAN X Scale, Span, 5, MHz.
Press
AMPLITUDE Y Scale, Ref Level, 10, dBm.
Step 4. Place a marker on the 10 MHz peak and then set the center frequency
step size equal to the marker frequency (10 MHz):
Press
Peak Search.
Press
Marker →, Mkr → CF Step.
Step 5. Activate the marker delta function:
Press
Marker, Delta.
Step 6. Increase the center frequency by 10 MHz:
Press
FREQUENCY Channel, Center Freq, ↑.
The first marker moves to the left edge of the screen, at the amplitude
of the first signal peak.
Figure 2-5 shows the reference annotation for the delta marker (1R) at
the left side of the display, indicating that the 10 MHz reference signal
is at a lower frequency than the frequency range currently displayed.
The delta marker appears on the peak of the 20 MHz component. The
delta marker annotation displays the amplitude and frequency
difference between the 10 and 20 MHz signal peaks.
Figure 2-5 Delta Marker with Reference Signal Off-Screen (ESA)
Step 7. Turn the markers off:
Press
Marker, Off.