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9.28 DPS [Dip Search]
■ Function
Detects a spectrum dip and moves the trace marker there.
When the processing is complete, bit 0 (measurement end bit) of the extended
event status register (ESR2) is set to 1.
To move the dip, specify DIP, NEXT, LAST, LEFT, or RIGHT.
To read the dip wavelength and level, use a TMK? command.
Header Program Query Response
PTS PTS s PTS ? PTS m
■ Value of s
s = DIP: Detects the main dip whose level is highest, and move the trace
marker there.
= NEXT: Detects the dip whose level is the second highest compared with the
current dip, and moves the trace marker there.
= LAST: Detects the dip whose level is the second lowest compared with the
current dip, and moves the trace marker there.
= LEFT: Detects the dip whose wavelength is the second shortest compared
with the current dip, and moves the trace marker there.
= RIGHT: Detects the dip whose wavelength is the second longest compared
with the current dip, and moves the trace marker there.
■ Value of m
m = DIP, NEXT, LAST, LEFT, RIGHT
= ERR (state other than dip search)
■ Initial setting value
s = DIP
9.28 DPS [Dip Search]
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