Keysight U8903B, Руководство пользователя

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Audio Generator Functions 3
Keysight U8903B User’s Guide 109
Figure 3-15 Bluetooth Generator > Waveform Config menu page (SMPTE 1:1 waveform)
Table 3-7 Analog/Digital/ Bluetooth Generator > Waveform Config menu description (SMPTE IMD waveforms)
Menu Description
Amplitude
Amplitude can be expressed as Vrms, Vpeak, Vpp, dBV, dBu, and dBm for the analog generator.
Amplitude can be expressed as FFS, dBFS, or %FS for the digital and
Bluetooth generator.
For a perfect sine waveform without any DC offset, Vpp is twice Vpeak and Vrms is equivalent to Vpeak/ √ 2.
Lower Freq
Lower Freq refers to the lower frequency of the waveform. The lower and upper frequencies are differentiated by the
amplitude ratio between the frequencies.
Upper Freq
Upper Freq refers to the upper frequency of the waveform. The lower and upper frequencies are differentiated by the
amplitude ratio between the frequencies.
DC Offset DC Offset refers to the DC component of the waveform.
Summation
Summation refers to the method to sum up two levels.
– RSS
The amplitude displayed is the Root Sum Square (RSS) summation result of the two levels. The analyzer will read the
same amplitude set at the generator regardless of tone ratio.
– Linear
The amplitude showed is the linear summation result of the two levels. The level of each tone can be easily calculated
back from the tone ratio.