EXFO FTB -5240S/5240BP Optical Spectrum Analyzer - Manual (Page 603)

SCPI Command Reference
OSA 597
Product-Specific Commands—Description
:UNIT[1..n]:SPECtrum?
Description This query returns the selected default unit for
commands which program spectrum.
At *RST, default spectrum unit is set to M (meter).
Syntax :UNIT[1..n]:SPECtrum?
Parameter(s) None
Response Syntax
Response(s) Unit:
The response data syntax for is defined
as a element.
The response corresponds to the selected
default spectrum unit.
M: meter unit is selected.
HZ: hertz unit is selected.
Example(s) UNIT:SPEC HZ
UNIT:SPEC? Returns HZ
See Also :UNIT[1..n]:POWer
:UNIT[1..n]:RATio
:UNIT[1..n]:SPECtrum