Operation and Service Guide Agilent Technologies 8648A/B/C/D ...

Operation Examples
Setting a User Selectable Modulated Frequency and Waveform (Option 1E2 or 1EP Only)
Setting a User Selectable Modulated Frequency and
Waveform (Option lE2 or lEP Only)
NOTE
This modulation example can only be performed if Option lE2 or lEP is
present.
In this example, you will select the modulation level and the modulated frequency and
waveform of the RF signal output.
Setting the Modulation Level
1. Select FM modulation with a deviation of 25 kHz.
Either AM or M modulation may be used instead of FM. The modulation type (FM, AM,
or M) and the modulation level (deviation or depth) is displayed on the top line of the
front panel display as shown.
FM
I 2 J I~] [ >::J)
oneaed
Setting the Modulated Waveform
2. Press the INT 1kHz (FREQUENCY/WAVEFORM) key until SQU is selected.
Repetitively pressing the INT 1kHz (FREQUENCY/WAVEFORM) key selects one of five
states:
• a fixed 1 kHz sinewave internal source
• a variable-frequency sinewave source (indicated by SIN preceded by the frequency
value)
• a variable-frequency triangle source (TRI)
• a variable-frequency squarewave source (SQu)
• a variable-frequency sawtooth (or ramp) source (SAW)
1a-21