46882/439 3-17
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 COMBINED RF OUTPUT, and irrespective of any
coupling that may have been set up.
Signal source selection
Select the required signal source by pressing the [A], [B] or [C] key. The selection is
acknowledged by the A, B or C panel at the bottom of the display being highlighted. Having
entered the parameters for that signal source you can then repeat the procedure for each additional
source. In Fig. 3-8 below the parameters for the A source are shown.
B3424
Fig. 3-8 Sig Gen 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 Sig Gen 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 [Ø],[×] 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 Δ]. 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 Sig Gen menu.
To Next Page
Loading...
General