Chapter 5 5-67
Language Reference
READ Subsystem
Return Harmonic Amplitudes
:READ:HARMonics:AMPLitude[:ALL]?
Returns a comma-separated list of the amplitudes of the ten harmonics.
Range: –180 dBm to 70 dBm
Default Unit: dBm (from fundamental); dBc (all others)
Remarks: The first value (for the fundamental) is measured in
dBm; the remaining harmonics are measured in dBc. If
fewer than ten harmonics are measured, the value NaN
is returned for any harmonic not measured. The
harmonic amplitude precision for SCPI and the display
is two decimal places.
Front Panel
Access:
MEASURE, Harmonic Dist
Return Harmonic N Amplitude
:READ:HARMonics:AMPLitude[n]?
Returns the amplitude of harmonic number n, measured in dBc from
the fundamental, or in dBm if n=1.
Range: –180 dBm to 70 dBm
Default Unit: dBc (from fundamental); dBm (n=1)
Remarks: The harmonic amplitude precision for SCPI and the
display is two decimal places.
Front Panel
Access:
MEASURE, Harmonic Dist
Return Harmonic Frequency List
:READ:HARMonics:FREQuency[:ALL]?
Returns a comma-separated list of the frequencies of the ten harmonics,
measured in Hz.
Range: 0 Hz to the maximum frequency range of the analyzer
Default Unit: Hz
Remarks: If fewer than ten harmonics are measured, the value
NaN is returned for any harmonic not measured. The
harmonic frequency precision for SCPI and the display
is four significant digits.
Front Panel
Access: MEASURE, Harmonic Dist
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