41
Measuring Multiple Signals
Easily Measure Varying Levels of Modulated Power Compared to a Reference
11 Enable the Delta Band 
Power Marker 
functionality.
• Press Marker, Select Marker, 
Marker 1, Delta.
This will change the reference 
Band Power Marker into a fixed 
power value (labeled X2) and 
initiate a second Band Power 
Marker (labeled 1 Δ 2) to 
measure any changes in power 
levels relative to the reference 
Band Power Marker X2. 
12Simulate a varying power 
level resulting from either 
adjustments, changes to 
the reference DUT, or a 
different DUT by 
lowering the signal source 
power. 
• Set the source amplitude to  
–20 dBm.
Note the Delta Band Power 
Marker value displayed in the 
Marker Result Block showing 
the 10 dB difference between 
the modulated power of the 
reference and the changed 
power level.
See Figure 2-15
Figure 2-15  Delta Band Power Markers Displaying Lower Modulated Power Level Compared to a 
Reference
Step Action Notes