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Chapter 3 Features and Functions
Amplitude Modulation (AM)
3
Modulating Waveform Shape
The waveform generator will accept an internal or external modulation
source for AM.
• Modulating waveform shape (internal source): Sine (default), Square,
UpRamp,
DnRamp, Triangle, Noise, PRBS, or Arb waveform.
• Square has 50% duty cycle
• UpRamp has 100% symmetry
• Triangle has 50% symmetry
• DnRamp has 0% symmetry
• Noise - white gaussian noise
• PRBS - Pseudo Random Bit Sequence (polynomial PN7)
• Arb - Arbitrary waveform
• Front-Panel Operation: After enabling AM, press the Shape softkey.
• Remote Interface Operation:
AM:INTernal:FUNCtion
{SINusoid|SQUare|PULSe|RAMP|NRAMp|TRIangle|
NOISe|PRBS|ARB}
Modulating Waveform Frequency
The waveform generator will accept an internal or external modulation
source for AM.
• Modulating frequency (internal source): varies by signal type, from
1
Hz to 30 MHz.
The default is 100 Hz
.
• Modulating frequency (external source): 0 to 100 kHz
•
Front-Panel Operation
: After enabling AM modulation, press
More
and then the
AM Freq
softkey.
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