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SDG7000A User Manual
36 / 133 WWW.SIGLENT.COM
Set harmonic number
Click the parameter value area in the "Order" parameter setting box, and type the harmonic
number to be set in the virtual keyboard that pops up later. If type = Odd, only odd value can be
entered; If type = Even, you can only enter even values; If type = All, you can type any integer in
the range of 2 ~ maximum harmonics.
Set harmonic amplitude
Step 1, click the harmonic amplitude unit area in the "amplitude" parameter setting box and select
the unit as "Vpp" or "dBc". The unit "Vpp" is applicable to set the absolute amplitude of harmonic,
and the unit "dBc" is applicable to set the relative amplitude of harmonics relative to the
fundamental frequency signal. Step 2, click the harmonic amplitude parameter value area and
then type the value to be set in the virtual keyboard that pops up.
Set harmonic phase
Click the value area in the "Harm Phase" parameter setting box, and type the value to be set in
the virtual keyboard that pops up later. The unit of phase is °
Turn on harmonic function
After all the harmonic parameters are set, the time domain waveform can be previewed in the
waveform preview region, and the harmonics and their approximate amplitude can be browsed
through the harmonic spectrum. After confirmation, return to the carrier parameter setting page
and click the switch area in the "Harmonic" parameter setting box to turn on the harmonic function.
Application example: set CH1 output sine wave and its harmonics, and the
parameters are as followes:
Fundamental frequency = 1 kHz
，
Fundamental amplitude = 0 dBm
Second harmonic amplitude = -30dBc
，
phase = 0°
Third harmonic amplitude = -40dBc
，
phase = 0°
1. Refer to the application example in the previous section to set the waveform, frequency,
and amplitude of the fundamental wave.
2. Set harmonics
Because harmonics contain both 2nd and 3rd, you need to set the type to “All”.
First set the amplitude and phase of the second harmonic: select "Order" as "2". Select the
unit of "Harm Ampl" as "dBc", and then set the value to "-30". Set "Harm Phase" to "0", and
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