3-14
Individual source operation
The following section describes the method of controlling the settings of the individual signal
sources. The method of control can be used irrespective of the routing of the signal source output,
whether to its own RF OUTPUT or to the CONNECTION TO RADIO connector, and irrespective
of any coupling that may have been set up.
Signal source selection
Select the required signal source by pressing the [A] or [B] key. The selection is acknowledged by
the A or B panel at the bottom of the display being highlighted. Having entered the parameters for
that signal source you can then repeat the procedure for the next source. In Fig. 3-8 below the
parameters for the A source are shown.
B3889
Fig. 3-8 Signal Generator menu with amplitude modulation selected for the A source
Carrier frequency selection
You can enter the carrier frequency in the range 10 kHz to 2.4 GHz to a resolution of 1 Hz.
(1) Press [SIG GEN] to show the Signal Generator menu with the current carrier frequency
displayed.
(2) Press
the
[Carrier Freq]
soft key to select carrier frequency as the current function.
(3) Enter the required value using the numerical key pad. Terminate using the [Hz], [kHz],
[MHz] or [GHz] key. If a value outside the specified range is requested, an error message is
displayed and the instrument is automatically set to the end of the range.
(4) You can then adjust the frequency either in steps using the [
ò
],[
ñ
] keys or by using the
control knob for continuous adjustment. The default increment/decrement is 1 kHz.
(5) You can check the current amount of offset from the reference carrier frequency by pressing
[TOTAL
∆
]. This causes the
Total Shift Menu
to be displayed.
(6) On
the
Total Shift Menu
pressing the
[Return Value]
key returns you to the reference carrier
frequency; pressing
[Transfer Value]
selects the currently displayed frequency as the
reference frequency.
(7) Pressing [SIG GEN] returns you to the Signal Generator menu.
