Rohde & Schwarz R&S FSP Series, Руководство по эксплуатации

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R&S FSP Remote Control – Description of Commands
CALCulate Subsystem
6.66 Operating Manual 1164.4556.12 - 06
6.5.6.3 CALCulate:MARKer:FUNCtion:HARMonics Subsystem
The CALCulate:MARKer:FUNCtion:HARMonics subsystem contains the commands for Harmonic Dis-
tortion measurement
CALCulate<1|2>:MARKer<1...4>:FUNCtion:HARMonics:BANDwidth:AUTO ON | OFF
This command specifies whether the resolution bandwidth of the 2 nd to the n th harmonic should be
identical to the bandwidth of the first harmonic (OFF) or to the next largest bandwidth (corresponding
to the harmonic) of the multiple of the bandwidth of the first harmonic (ON).
Example:
"CALC:MARK:FUNC:HARM:BAND:AUTO OFF"
'Switches automatic bandwidth expansion off.
Characteristics: *RST value: ON
SCPI: device-specific
Mode: A-F, A-T
CALCulate<1|2>:MARKer<1...4>:FUNCtion:HARMonics:BANDwidth[:LIST]?
This command returns the resolution bandwidth values used by the harmonic measurment. A separate
value for every harmonic frequency is automatically calculated. It is possible to query the calculated
values with this command.
The function is independent of the marker selection, i.e. the suffix <1|2> or <1...4> of CALCulate or
MARKer is irrelevant.
Example:
"CALC:MARK:FUNC:HARM:BAND?"
' Returns the used bandwidth values of the harmonics measurement.
Characteristics: *RST value:-
SCPI: device-specific
This command is a query and therefore has no *RST value.
CALCulate<1|2>:MARKer<1...4>:FUNCtion:HARMonics:DISTortion? TOTal
This command queries the results of the total harmonic distortion (THD).
A complete sweep with synchronization to sweep end should be performed between switching on the
function and querying the measured value to obtain a valid query result. This is only possible in the
single-sweep mode.
The function is independent of the marker selection, i.e. the suffix
<1|2>
or
<1...4>
of
CALCulate
or
MARKer
is irrelevant.
Example:
"INIT:CONT OFF"
’Switches to single-sweep mode.
"CALC:MARK:FUNC:HARM:NHARM 3"
'Sets the number of harmonics to 3.
"CALC:MARK:FUNC:HARM ON"
’Switches on the measurement of harmonics.
"INIT;*WAI"
’Starts a sweep and waits for the end.
"CALC:MARK:FUNC:HARM:DIST? TOT"
’Outputs the total harmonic distortion in % and dB.
Characteristics: *RST value: --
SCPI: device-specific
Mode: A-F, A-T