Agilent Technologies N1911A Programming Manual page 665

Example
Error Messages
• If a P- Series sensor is not connected, error –241, "Hardware missing"
• If a P- Series sensor is connected and Free Run trigger acquisition is
N1911A/1912A P-Series Power Meters Programming Guide
TRAC2:MEAS:REF? 100
occurs.
selected, error –221, "Settings conflict" occurs.
This command returns the high state
power for trace 2.
TRACe Subsystem 13
637