User`s manual

4. Select the Reference Oscillator
[SOURce:]ROSCillator:SOURce INTernal[1]
This command selects the 42.9 MHz (Internal1) reference oscillator
source to be used with the DDS frequency generator (see “Reference
Oscillator Sources” on page 115). (Although
*RST selects the 42.9 MHz
reference oscillator, it is selected here for good programming practice.)
If you wish to use the Divide-by-N frequency generator, use:
[SOURce:]ROSCillator:SOURce INTernal2
5. Select the Sample Source
TRIGger:STARt:SOURce INTernal[1]
This command selects the sample source for the DDS generator (that
is, trigger start source
INTernal[1]). (Although *RST selects this
trigger start source, it is selected here for good programming
practice.) The
USER (that is, arbitrary waveform) function can use
any of the trigger start sources (see “Sample Sources” on page 115).
If you wish to use the Divide-by-N generator, use:
TRIGger:STARt:SOURce INTernal2
6. Set the Sample Frequency Range
[SOURce:]FREQuency[1]:RANGe <range>
This command specifies the upper sample frequency limit (see
“Frequency1 Generator Range” on page 116) for the DDS generator.
Do not send this command if using the Divide-by-N generator.
7. Set the Segment Sample Rate
[SOURce:]FREQuency[1][:CW | :FIXed] <frequency>
This command sets the rate at which the points in a waveform
segment are output by the AFG. The frequency is:
(sample frequency) / (number of points)
Refer to Table B-3 in Appendix B for the frequency limits.
8. Select the Arbitrary Waveform Function
[SOURce:]FUNCtion[:SHAPe] USER
This command selects the arbitrary waveform function. Couple the
command to the previous frequency command.
9. Set the Maximum Output Amplitude
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] <amplitude>
This command specifies the maximum output amplitude. The
amplitude must be equal or greater than the maximum voltage value
of the waveform segment. Refer to Table B-4 in Appendix B for the
amplitude limits.
100 Generating Arbitrary Waveforms Chapter 3