R&S 1129.7246.03, Operating Manual

Page: 68 / 855

Operating Manual 1302.6163.12 - 03 4.37
R&S ESU Instrument Functions
Receiver Mode
MARGIN The MARGIN softkey activates the entry field of the margin, i.e. of an additional
acceptance threshold for the determination of the peak list. The limit line currently
used is shifted by this amount for defining the maxima. The range of values is -200
dB to 200 dB.
Remote command:
:CALC:PEAK:MARG –200dB...200dB
FINAL
MEAS TIME
The FINAL MEAS TIME softkey activates the entry field of the time of final measure-
ment.
Remote command:
FME:TIME <num_value>
AUTOMATIC
FINAL
The AUTOMATIC FINAL softkey activates the automatic mode for the final mea-
surement, i.e. a final measurement will be performed automatically and immediately
each time a value out of limit is detected.
Remote command:
:FME:AUTO ON
INTER
ACTIVE
The INTERACTIVE softkey selects the following sequence for the final measure-
ment:
• The prescan is interrupted – HOLD SCAN state.
• The bar graph measurement is started in the free running mode.
• The signal can be exactly analyzed by modifying the receiver settings.
• The actual final measurement is started, the receiver settings being restored
except the frequency.
• The current frequency replaces the original one in the frequency list (drifting
interference sources).
• The prescan is continued at the frequency at which it was interrupted.
Remote command:
:FME:AUTO OFF
RUN
SCAN
The RUN SCAN softkey starts the prescan. The HOLD SCAN submenu is called.
For information about RUN SCAN refer to “Running a Scan” on page 4.62
Out-of-limit value for AUTOMATIC FINAL
If an out-of-limit value is detected, the R&S ESU automatically goes to the HOLD
SCAN state and starts the final measurement. The
HOLD FINAL MEAS Sequence
for AUTOMATIC FINAL submenu comes up . On completion of the final measure-
ment, the R&S ESU continues the prescan, and the HOLD SCAN submenu is dis-
played again.
With the AUTOMATIC FINAL softkey in the CONTINUE FINAL MEAS submenu a
switchover can be made to the automatic mode before the measurement is
started anew.