User`s manual

Selecting the Output Loads
The OUTPLOAD program sets the AFG’s output impedance to the output
load value of 75 Ω. The commands are:
1. Setup the AFG
*RST
Use the *RST command to setup the AFG. You can also use the
commands listed in the previous sections of this chapter (“Generating
Sine Waves” on page 58) to setup the AFG.
2. Set the Amplitude
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] <amplitude>
This command specifies the amplitude. Refer to the section called
“Selecting the Amplitude Levels and Output Units” on page 72 for
more information.
3. Select the Auto Load On, Off, or Once
OUTPut[1]:LOAD:AUTO <mode>
With this command, the assumed load applied to the AFG’s "Output
50/75 Ω" terminals tracks the AFG output impedance. The modes
are:
ON – load value tracks output impedance
OFF – load value does not track output impedance
ONCE – load value tracks output impedance once and then
goes to OFF
4. Select the Output Impedance
OUTPut[1]:IMPedance <impedance>
This command selects the AFG output impedance. The AFG output
impedance can be either 50 Ω or 75 Ω.
Chapter 2 Generating Standard Waveforms 69