2500A Menus
2500A Series Operation Manual, 34172 Revision C, March 2008
Figure 2-3: CW Menu with Interactive Softkeys
The following explains each item in the CW menu:
Frequency. This menu item displays and allows you to modify the instrument’s CW frequency. The
range of the CW frequency parameter is dependent on the model number of the instrument.
Power. This menu item displays and allows you to modify the instrument’s output power level. The
range of the output power level depends on the following configuration and settings of the instrument:
Power Offset. This menu item displays and allows you to modify the instrument’s power offset. The
power offset feature increases the instrument’s output power by the amount of the power offset setting,
without changing the power level as shown in the Display. This allows you to compensate for the inser-
tion or conversion loss of components that are attached to the instrument’s RF output. An example
appears in Figure 2-4.
Figure 2-4: Power Offset Example
The Power Offset indicator (OFS) appears in the upper right-hand corner of the display when any power
offset value greater than 0.00 dB is entered.
Power Slope. This menu item displays and allows you to modify the instrument’s power slope. The
power slope feature increases the instrument’s output power linearly as a function of the output fre-
quency. The power slope function allows you to automatically compensate for insertion/conversion
losses of components attached to the instrument’s RF output that exhibit a linear loss characteristic with
CW MENU
6.00 GHz
3.21 dBm
0.00 dB
0.00 dB/GHz
Frequency
Power
Power Slope
Power Offset
Step Size: 0.1 Hz
0 Degrees
Cable Cal
Menu
Phase
2400L Microwave Synthesizer
×
RF Mixer
Conversion Loss = 2.23 dB
Power Level Setting = +10 dBm
Power Offset Setting = 2.23 dB
+10 dBm is present
at the output of
the RF mixer
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