To Activate Fm; Configuring Pulse Modulation; To Set The Rf Output Frequency; To Set The Rf Output Amplitude - Agilent Technologies E8663B User Manual

Analog Modulation

Configuring Pulse Modulation

The signal generator is now configured to output a 0 dBm, phase- modulated carrier at 3 GHz with a
0.25 p radian deviation and 10 kHz rate. The shape of the waveform is a sine wave. (Notice that sine
is the default for the
To Activate ΦM
ΦM Off On
1. Press .
2. Press .
RF On/Off
The ΦM and RF ON annunciators are now displayed. This indicates that you have enabled phase
modulation and the signal is now being transmitted from the RF OUTPUT connector.

Configuring Pulse Modulation

In this example, you will learn how to create a gated, pulse- modulated RF carrier with an external
trigger.

To Set the RF Output Frequency

1. Press .
Preset
2. Press >
Frequency 2

To Set the RF Output Amplitude

Press > >
Amplitude 0 dBm

To Set the Pulse Period, Width, and Triggering

1. Press >
Pulse Pulse Period
2. Press >
Pulse Pulse Width
3. Press >
Pulse Pulse Source > Int Gated
4. Connect a TTL signal to the Trigger In connector on the rear panel of the signal generator. To
configure the trigger signal polarity, Press Utility > Instrument Adjustments > Signal Polarity
Setup > Trigger In Polarity.
The signal generator is now configured to output a 0 dBm, pulse- modulated carrier at 2 GHz with a
100- microsecond pulse period and 24- microsecond pulse width. The pulse source is set to internal
gated. (Notice that Internal Free Run is the default for the

To Activate Pulse Modulation

Follow these remaining steps to output the pulse- modulated signal.
1. Press to On.
Pulse Off On
2. Press .
RF On/Off
The Pulse and RF ON annunciators are now displayed. This indicates that you have enabled pulse
modulation and the signal is now being transmitted from the RF OUTPUT connector. The TTL trigger
signal state will control pulse modulation output.
62
ΦM Waveform
softkey. Press
> .
GHz
.
> > .
100 usec
> > .
24 usec
.
to see the softkey.)
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Pulse Source
Agilent E8663B Analog Signal Generator User's Guide
softkey.)