Getting Started 1
Keysight U3401A User’s and Service Guide 27
DCAC AC + DC
COMP Compare operation
dBm Decibel unit relative to 1 mW
CAL Calibration mode
EXT External. Not applicable for the U3401A.
TRIG Trigger mode
REMOTE Remote interface control. For calibration use only.
LOCAL Local mode
STO Store instrument state. Not applicable for the U3401A.
RCL Recall stored instrument state. Not applicable for the U3401A.
Table 1-1 Display annunciators (continued)
Annunciator Description