
SCPI Command Reference
Optical Spectrum Analyzer 477
Product-Specific Commands—Description
:CALCulate[1..n]:WDM:CHANnel?
Description This query returns the information pertaining to a
channel.
A trace must be present in memory for the
command to be accepted.
*RST has no effect on the WDM measurement.
Syntax :CALCulate[1..n]:WDM:CHANnel?
Parameter(s) ChannelIndex:
The program data syntax for <ChannelIndex> is
defined as a <DECIMAL NUMERIC PROGRAM
DATA> element.
Selects the Index of channel.
The maximum value for the index varies with
thenumber of channels on the results list.
Response Syntax <ChannelResults>
Response(s) ChannelResults:
The response data syntax for <ChannelResults>
is defined as a <DEFINITE LENGTH ARBITRARY
BLOCK RESPONSE DATA> element.
Channel results in A,B,C,D,E,F,G,H,I,J,K,L format
where:
A = Channel name <STRING PROGRAM DATA>
B = Spectral position (always in m) <NR3
NUMERIC RESPONSE DATA>
C = Channel power (always dBm) <NR3
NUMERIC RESPONSE DATA>
D = Power type <STRING PROGRAM DATA>
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