# Pattern Length

To measure Pattern Length, Clock Recovery must be performed to determine the edge locations.

The Pattern Length measurement looks for at least two error-free copies of an identical repeating bit pattern in acquisition memory. If a repeating bit pattern is found, its length is reported in the measurement results.

## Configurable Measurement Parameters

This measurement is affected by the following settings (choose Measure > Thresholds...):

- Thresholds tab

## To measure

1. Click the toolbar's Data tab.

2. If necessary, click the toolbar's More buttons to locate the Pattern Length button.

3. Click the button.
4. Select the signal on which to make the measurement.
5. Click Apply.

## SCPI Command

`:MEASure:DATA:PLENgth`