Viavi CX100 ComXpert Operation Manual page 124

Controls/Settings
Coupling
Settings Soft-key
AF Gen "x"
Soft-key
5.2.6.2 Configuring the AF Function Generator
To Configure the CX100 AF Function Generator:
1. Open the AF Function Generator panel.
2. Set Coupling to desired setting.
3. Set Frequency for AF Generator 1 and or 2.
4. Select Level Type for AF Generator 1 and or 2.
5. Set Level for AF Generator 1 and/or 2.
6. Select Sine for AF Generator 1 and or 2 Waveform.
7.
Enable to AF Generator(s) being used.
8. AF signal is now being generated at the Audio Out connector.
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August 2023
Table 5-5 AF Generator Controls and Settings (Continued)
Description
Coupling is accessed from the Settings soft-key.
Coupling selects how unwanted AC/DC signal components
are filtered from the received signal.
AC Coupling
AC coupling filters the DC signal component out of a signal
that contains both AC and DC components. The DC
component of a signal acts as a voltage offset so removing
the component may increase the resolution of signal
measurements.
DC Couping
DC coupling does not filter components from the signal;
both AC and DC signal components are therefore present
in the signal. DC coupling is typically used when any offset
voltage present is <±100 mV or if the DC content of the
signal is important.
The Settings soft-key opens a menu that accesses the
following controls and settings (described above):
•
Encode Type
• Coupling
The AF Gen 1 and AF Gen 2 soft-keys turn the corresponding
AF Generator on and off.
CX100 ComXpert Operation Manual
Chapter 5 RF Instrument Function Descriptions
RF Test
Rev 002
5 - 15