Specifications

13
Creating a multipath
AM configuration
Use these steps to configure a multi-
path AM configuration. AM Path 1
and AM Path 2 are summed inter-
nally for composite modulation.
Either path can be switched to any
one of the modulation sources
(internal 1 or 2, external 1 or 2),
though any given source can only be
routed to one modulation type.
Note that the AM Source for AM
Path 1 is set to Internal 1 as a
default setting. Therefore, the AM
Source for AM Path 2 must be set to
another source, as explained in the
following procedure.
Instruction Note
1. Press {AM Path 1 2} to toggle to AM Path 2. This opens a menu of softkeys where you can
define a second unique amplitude modulation
configuration.
2. Press {AM Depth} > [40] > {%}. The AM Path 2 AM depth is set to 40.0 percent , as
displayed below the {AM Depth} softkey.
3. Press {AM Rate} > [5] > {kHz}. 5.0000 kHz is displayed below the {AM Rate}
softkey.
4. Press {More (1 of 2)} > {AM Waveform} The AM Path 2 AM waveform is set to Triangle,
> {Triangle}. as displayed below the {AM Waveform} softkey.
5. Press {More (2 of 2} > {AM Source} > {Internal 2} The AM Path 2 AM source is set to Internal 2, as
displayed below the {AM Waveform} softkey.
Instruction Note
1. Press {AM Off On}. This activates the modulation on AM Path 2. The
AM annunciator is activated, indicating that you
have enabled amplitude modulation on AM Path 2.
2. Press {AM Path 1 2} > {Amp Off On}. This toggles back to AM Path 1 and activates the
modulation on AM Path 1.
3. Press [RF On/Off]. The RF ON annuciator is activated, indicating that
the multipath AM signal is now available at the
RF OUTPUT connector.
Activating a multipath
AM configuration
The signal generator is now config-
ured to output a 0 dBm, multipath
amplitude-modulated carrier at
4 GHz. AM Path 1 is set to an AM
depth of 90 percent, an AM rate of
10 kHz, and a sinewave as the
default AM waveform. AM Path 2 is
set to an AM depth of 40 percent
with a triangle
AM waveform at the rate of 5 kHz.
Follow these remaining steps to out-
put the amplitude-modulated signal.