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Multitone personality
The PSG multitone personality provides a full featured, flexible configuration menu for
multitone signals ranging from 2 to 64 tones, Figure 11. In-band or out-of band IMD test
signals can quickly be configured using the easy to navigate table editor, Figure 12.
Enable/disable tones and change relative tone spacing, power, and initial phase
conveniently from the instrument front panel or remotely over the GPIB or LAN interface.
A. Set carrier frequency
• 250 kHz to 20 GHz
• tones are placed symmetrically around carrier
B. Set the amplitude of the PSG signal
C. Set the number of tones
• 2 to 64
D. Set relative tone spacing
• 100 Hz to 80 MHz
• depends on number of active tones
E. Select fixed or random phase initialization
F. Set relative tone power distribution
• 0 dB to –40 dB
• total power is divided among the tones
G. Set and view initial tone phase
H. Quickly enable/disable individual tones
I. Store and Re-load custom multitone setups
J. Plot CCDF characteristics of the multitone signal
Figure 11. Multitone personality user interface.
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