Filter Command; Utility Commands; Bndw(?) {I; Ocal - Stanford Research Systems SR446 Operation And Service Manual

2.3 Commands

2.3.7 Filter Command

BNDW(?) {i}

Example:

2.3.8 Utility Commands

OCAL(?)

Example:

FRST

Example:
SR446 400 MHz Programmable Gain Preamplifier
The filter command provides remote program control corresponding to
the front‑panel OUTPUT FILTER section (§1.2.3).
Output Filter
Sets (or queries) the output filter bandwidth.
0 1
i =
(full BW), (200 MHz),
»BNDW?
1
indicates the SR446 is set to 200 MHz
The utility commands provide remote program control corresponding
to the front‑panel special operations described in §1.3.
Offset Calibration
Initiates the offset calibration, or queries the offset status.
The calibration sequence requires about 18 s to complete.
0
queries will return i =
3
panel), (calibration in progress),
completed).
Note that while OCAL is in progress, the SR446 will only respond to
remote OCAL? queries–all other commands and queries will be ignored.
»OCAL?
3
indicates calibration in progress
Factory Reset
Initiates a factory reset.
The FRST command restores the SR446 to its factory configuration. This
will erase any results from OCAL calibrations performed by the user,
restore the factory offset calibration, and then restore the instrument
configuration to *RST .
»FRST
2 3
(100 MHz), or
1
(idle), (started by OCAL ),
4
(calibration failed), or
19
(20 MHz).
OCAL?
2
(started from front
5
(calibration