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Chapter 5, FRONT PANEL OPERATION
5.6 Menu Descriptions - Dual Harmonic Mode
5.6.01 Dual Harmonic Setup Menu
5.6.02 Dual Harmonic Main Display
5-78
EQUATION #2
+10000
0
-10000
USER DAC1, USER DAC1, USER DAC1, and USER DAC4
When set to the USER DAC setting the corresponding DAC connector on the
rear panel of the instrument outputs the voltage set by the corresponding
AUX DAC control, in the range 10.000 V.
Pressing the Previous Menu key returns control to Main Menu 2.
This completes the description of the dual reference mode menus.
The dual harmonic mode allows the model 7270 to simultaneously measure signals
applied to the signal input at two different harmonics of the reference frequency. The
reference may be either externally supplied or derived from the internal oscillator.
During dual harmonic mode operation, some of the control and display menus differ
from those used for single reference mode, so these are described in the following
sections. The remaining menus operate in the same way as in single reference mode,
as already described in section 5.3.
When the Configuration menu is displayed, pressing the Dual Harmonic key
activates the dual harmonic mode. While the instrument switches to this mode, the
Dual Harmonic Setup menu is displayed, as shown in figure 5-59.
Figure 5-59, Dual Harmonic Setup Menu
Once dual harmonic has been activated, the Main Display - Dual Harmonic Mode is
displayed, as shown in figure 5-60.
DAC Voltage
10.0 V
0.0 V
-10.0 V
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