Technical data

254 Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz
14 Measure (Spectrum Analysis Mode)
:FETCh:HARMonics:AMPLitude:ALL?
:MEASure:HARMonics:AMPLitude:ALL?
:READ:HARMonics:AMPLitude:ALL?
N/A Returns the amplitude values of the first ten
harmonics. The first value (for the fundamental) is
measured in dBm. The remaining harmonics are
measured in dBm from the fundamental. If fewer than
ten harmonics are measured, zero is returned for any
harmonic not measured.
:FETCh:HARMonics:AMPLitude[n]?
:MEASure:HARMonics:AMPLitude[n]?
:READ:HARMonics:AMPLitude[n]?
n=1 to 10 (n=1
for n not
specified)
Returns the amplitude of the specified harmonic
number n, where n=1 returns the amplitude of the
fundamental in units of dBm.
For example, n = 9 returns the amplitude of the ninth
harmonic measured in dBm from the fundamental.
:FETCh:HARMonics[:DISTortion]?
:MEASure:HARMonics[:DISTortion]?
:READ:HARMonics[:DISTortion]?
N/A Returns the computed total harmonic distortion as a
percentage.
:FETCh:HARMonics:FREQuency:ALL?
:MEASure:HARMonics:FREQuency:ALL?
:READ:HARMonics:FREQuency:ALL?
N/A Returns the frequency values of the first ten
harmonics, in Hz. The first harmonic is the
fundamental. If fewer than ten harmonics are
measured, zero is returned for any harmonic not
measured.
:FETCh:HARMonics:FREQuency[n]?
:MEASure:HARMonics:FREQuency[n]?
:READ:HARMonics:FREQuency[n]?
n=2 to 10 (n=1
for n not
specified)
Returns the frequency of the specified harmonic
number N (in Hz).
:FETCh:HARMonics:FUNDamental?
:MEASure:HARMonics:FUNDamental?
:READ:HARMonics:FUNDamental?
N/A Returns the frequency of the fundamental, measured
in Hz.
:FETCh:HARMonics[n]?
:MEASure:HARMonics[n]?
:READ:HARMonics[n]?
n=1 to 2
(n=1 for n not
specified)
These commands return the power of the spurious
emissions at the selected harmonic frequencies of the
current channel frequency using the selected
resolution bandwidth filter. You can set the number of
harmonics to be measured. For each harmonic, the
reference level is set 40 dB above the largest
amplitude limit with input attenuation held constant.
The attenuation is set to limit the carrier (fundamental)
power at the spectrum analyzer input mixer to the
value determined by Max Mixer Lvl.
not specified or n=1
Returns one value that corresponds to the total
harmonic distortion (RMS voltage %).
n=2
Returns one value that corresponds to the total
harmonic distortion (dB).
Measurement Results Available
Command n Results Returned