Tektronix AFG3000 - Manual (Page 127)

Syntax and Commands
AFG3000 Series Arbitrary/Function Generators Reference Manual 3-53
[SOURce[1|2]]:FREQuency:SPAN
This command sets or queries the span of frequency sweep for the specified
channel. This command is always used with the
[SOURce[1|2]]:FREQuency:CENTer command. The setting range of frequency
span depends on the waveform selected for sweep.
Group Source
Related Commands [SOURce[1|2]]:FREQuency:CENTer
[SOURce[1|2]]:FREQuency:MODE
Syntax [SOURce[1|2]]:FREQuency:SPAN {<frequency>|MINimum|MAXimum}
[SOURce[1|2]]:FREQuency:SPAN? {MINimum|MAXimum}
Arguments <frequency>::=<NRf>[<units>]
where
<NRf> is the frequency span.
<units>::=[Hz | kHz | MHz]
Returns <frequency>
Examples SOURce1:FREQuency:SPAN 900 kHz
sets the CH 1 frequency span to 900 kHz.