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CALCulate Subsystem
TVS600 & TVS600A Command Reference
2–29
The source may be from any channel, reference or a SENSe function, it is not
tied to the CALC block number. For example, the FEED2 for CALC2 could be
“XTIM:VOLT 1” or “XTIM:VOLT 3.” Additionally, more than one CALC block
can operate on the same source.
Trace names and function strings may be used interchangeably for the source
parameter <sense_func>. The query form always returns the function strings.
When you perform a calculation with the command CALC:PATH:EXPRession,
the value of :FEED2 can be referenced as “%2” within the expression.
When defining SCPI model calculations that measure parameters based on two
waveforms (such as Gain and Delay), :FEED1 specifies the reference waveform
and :FEED2 specifies the target waveform. Also, the functions you set using
CALC:PATH only apply to the data source selected with FEED1. The source
selected by FEED2 is unaffected by the functions you select.
CALCulate<n>:FEED2 <sense_func>
CALCulate<n>:FEED2?
<n>
1
Query response
1
2
3
4
Not applicable
1
The calculate block number <n> selects one of four calculate blocks. If you omit <n>,
the default is calculate block 1.
<sense_func> (CALC block source) Query response
<string>
“XTIMe:VOLTage[:DC] 1” or CHAN1
“XTIMe:VOLTage[:DC] 2” or CHAN2
“XTIMe:VOLTage[:DC] 3” or CHAN3
“XTIMe:VOLTage[:DC] 4” or CHAN4
“REFerence1” or REF1
“REFerence2” or REF2
....
“REFerence10” or REF10
“ ” or NONE
1
<string>
“XTIM:VOLT 1”
“XTIM:VOLT 2”
“XTIM:VOLT 3”
“XTIM:VOLT 4”
“REF1”
“REF2”
...
“REF10”
“” (empty string returned)
1
Specifying NONE causes :FEED2 to default to the same source as :FEED1. If you
specify NONE, the same waveform will be used for taking the gain, phase, or delay
measurement.
Syntax
Parameters