Agilent Technologies E8247C PSG CW - Manual (Page 60)

50 Chapter 2
Basic Operation
Modulating a Signal
Modulating a Signal
This section describes how to turn on a modulation format, and how to apply it to the RF output.
Turning On a Modulation Format
A modulation format can be turned on prior to or after setting the signal parameters.
1. Access the first menu within the modulation format.
This menu displays a softkey that associates the format’s name with off and on. For example,
AM >
AM Off On
. For some formats, the off/on key may appear in additional menus other than the first one.
2. Press the modulation format off/on key until On highlights.
Figure 2-11 shows the portion of the AM modulation format’s first menu that displays the state of the
modulation format, as well as the active modulation format annunciator.
The modulation format generates, but the carrier signal is not modulated until you apply it to the RF
output (see
page 51 ).
Depending on the modulation format, the signal generator may require a few seconds to build the signal.
Within the digital formats (E8267C PSG with Option 002/602 only), you may see a
BaseBand
Reconfiguring status bar appear on the display. Once the signal is generated, an annunciator showing the
name of the format appears on the display, indicating that the modulation format is active. For digital
formats (E8267C PSG with Option 002/602 only), the
I/Q annunciator appears in addition to the name of
the modulation format.
Figure 2-11 Example of AM Modulation Format Off and On
First AM Menu
Modulation format is off
Modulation format is on
Active Modulation Format Annunciator