2 General Power Meter Functions
62 N1911A/1912A P-Series Power Meters User’s Guide
Setting up the Channel Trace
Procedure
1 Press  ,   to display the Trace Setup menu. 
Figure 2-45 Trace setup display
2 Use the   and   keys to highlight the X Start field.
This feature is only available when a P-Series or an E-Series E9320 power sensor is 
connected.
The Trace Setup is the only location where you can change the Y-axis units from dBm to 
Watts.
This procedure uses the Trace Setup under the Channel Setup menu. Alternatively, you can 
use a more visual method, when in the Graphical Trace Mode (Trace Control Menu), to set 
the channel’s Trace Control. (See “Setting the Trace Display” on page 118).