User manual

Acquisition and Setup

R&S

RTO

31User Manual 1316.0827.02 ─ 06

Acquisition time

Shows the time of one acquisition, that is the time across the 10 divisions of the diagram:

Acquisition time = Time scale * 10 divisions

Changing the acquisition time changes the time scale too.

SCPI command:

TIMebase:RANGe on page 429

Resolution / Record length (Time scale dependency)

You can choose to keep constant either the resolution or the record length when you

adjust the time scale or acquisition time.

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With constant resolution, increasing the time scale also increases the record length,

and vice versa. You can limit the record length to a maximum value.

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With constant record length, increasing the time scale coarsens the resolution, that

is, the time between two waveform samples gets longer.

SCPI command:

ACQuire:POINts:AUTO on page 431

Auto adjustment (Time scale dependency)

Prevents undersampling and ensures a sufficient resolution to acquire the correct wave-

form if the time scale is changed. The setting takes effect if the changed parameter -

resolution or record length - reaches a limit. The instrument automatically keeps this

parameter constant at its limit, and changes the other parameter regardless of the "Res-

olution / Record length" setting.

See also: Resolution / Record length (Time scale dependency)

Record length limit (Time scale dependency)

Sets a limit for the record length to prevent very large records. This value is only available

if "Auto adjustment" is on and a constant resolution is selected. If you increase the time

scale, the resolution remains constant and the record length increases until the limit is

reached. Further increase of the time scale changes the resolution and keeps the record

length limit.