Phase Modulation (PM)
l Arbitrary waveform
l You can use noise as the modulating waveshape, but you cannot use noise or DC as the carrier waveform.
l Front-Panel:
l SCPI: PM:INTernal:FUNCtion {SIN|SQU|RAMP|NRAMp| TRI|NOIS|PRBS|ARB}
Modulating Waveform Frequency
The instrument accepts an internal or external modulation source. The external modulation input has a -3dB band-
width of 100 kHz.
l Modulating frequency (internal): 1 µHz to 30 MHz, default 10 Hz.
l Front Panel:
Then set the modulating waveform frequency:
l SCPI: [SOURce[1|2]:]PM:INT:FREQ {<freq>|MIN|MAX}
Phase Deviation
The phase deviation setting represents the peak variation in phase of the modulated waveform from the carrier wave-
form. The phase deviation can be set from 0 to 360 degrees (default 180).
l Front Panel:
Then set the phase deviation:
Agilent 33500 Series Operating and Service Guide 79
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