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First-time use
First-time users can quickly become familiar with the principles of control and display by carrying out the following
exercise, which demonstrates how to set up a typical basic signal, having the following parameters, on one of the
signal sources:
Carrier frequency: 100 MHz,
Output level: 10 dBm,
Frequency modulation: 100 kHz deviation at 500 Hz mod.
Switching on
Before switching the instrument on, check that the power supply is connected and ensure that no
external signal sources are connected.
Switch on by means of the SUPPLY switch and check that the display is similar to that shown in
Fig. 3
-3 below. This shows the Sig Gen menu as it appears during normal operation.
If the default display shown in Fig. 3
-3 is not obtained, a previous user may have set the
instrument to switch on with one of the user memories recalled, rather than using the default
factory settings.
To reset to the factory settings press the [UTIL] hard key followed by the soft key sequence
[Power Up Options] [Factory Power Up] [EXIT]. Then switch off and switch back on again.
Observe that the Sig Gen menu appears on the display showing the default parameters for FM, and
that the panel for the A signal source is highlighted at the bottom left of the screen. This indicates
that these parameters apply only to the A source.
B3420
Fig. 3-3 2026 Sig Gen menu in normal operation showing default display
Display
Before entering any parameters it will be found useful to look at the effect that pressing various
keys has on the display for the Sig Gen menu. This is the main display and it is divided into a
number of fields as shown in Fig. 3
-4 below.
Signal source field
This field, at the bottom of the display, is divided into four panels, one for each of the three signal
sources and one for the combiner. When a source panel is highlighted, all the parameters shown
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General