Keysight N1911A Programming Manual page 529

Example
SYST:PRES DEF
Error messages
– If a non-E-Series power sensor or N8480 Series power sensor with Option CFT
– If BLUetooth or CDMAone is selected and an E9322/6A (1.5 MHz bandwidth)
– If WCDMA or CDMA2000 is selected and an E9323/7A (5 MHz bandwidth)
– If two E9320 power sensors are connected to a dual channel power meter and
N1911A/1912A P-Series Power Meters Programming Guide
is connected, the command can be used to set the power meter to Default
settings. When non of the connected sensor is E9320 sensor, attempts to set
the power meter to any of the other settings result in error –241 "Hardware
missing: E9320 Series sensor required" occurring.
or E9323/7A (5 MHz bandwidth) power sensor is not connected, error –241
"Hardware missing: Higher bandwidth E9320 sensor required on Channel X.
Measurements on Channel X may be inaccurate" occurs.
power sensor is not connected, error –241 "Hardware missing: Higher
bandwidth E9320 sensor required on Channel X. Measurements on Channel X
may be inaccurate" occurs.
only one is of sufficient bandwidth to support the selected format, error –241
"Hardware missing: Higher bandwidth E9320 sensor required on Channel X.
Measurements on Channel X may be inaccurate" occurs.
This command presets the power meter with
default values. The same default values are
set when the parameter is omitted.
SYSTem Subsystem 12
529