3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
Copy from Limit
Copies an existing limit into the specified limit, including all secondary parameters
(Description, Associated Trace, Type, Margin, Interpolation, and Relative to CF/RL).
The destination limit is specified as a subopcoded LLINe parameter and the source
limit is specified as a numeric parameter.
Remote
Command
:CALCulate:LLINe[1]|2|…|6:COPY 1 | … | 6
Example Copy the data from line 1 into line 2:
:CALC:LLINE2:COPY 1
Notes The form is :CALCulate:<destination>:COPY <source>
Copy
Copies a Limit from the Limit specified in Copy From Limit
Build from Trace
Builds a limit using an existing trace. This command overwrites all data in the limit.
Since a straight copy would typically have hundreds or thousands of segments, the
data is approximated to better represent a limit line; small excursions whose width is
less than 10 trace buckets are sometimes not captured. Secondary parameters that
are not associated with traces (Description, Associated Trace, Type, Margin,
Interpolation, Relative to CF/RL) are unchanged.
When taking a trace to build a limit, it often works well to take the trace with a
resolution bandwidth wider than the expected measurement, a video bandwidth
lower than the expected measurement, and with the detector set to Max Hold or Min
Hold.
Note that an upper limit is built above the trace, while a lower limit is built below the
trace. If the trace is constant, the limit should pass after being built.
Remote
Command
:CALCulate:LLINe[1]|2|…|6:BUILd TRACE1 | … | TRACE6
Example Builds Limit Line 2 based on the data in trace 1. This overwrites the data in the table editor:
:CALC:LLIN2:BUIL TRACE1
Build
Builds a Limit from the Trace specified in "Build from Trace" on page 400.
400 Spectrum Analyzer Mode User's &Programmer's Reference
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