# To measure by distance offset

In a conventional survey, use this observation method when a point is inaccessible but a horizontal distance from the target point to the object can be measured. Distance offset allows you to offset in one, two, or three distances in one step.

1. Tap and select Measure / Measure topo.
2. Enter the Point name and, if required, the Code.
3. In the Method field, select Distance offset.
4. In the Target height field, enter the height of the target.

5. To set the perspective from which objects are offset, tap Options and change the settings in the Servo/Robotic group box. For more information, see Servo/Robotic.

   To preconfigure two values for the L/R offset, enter values in the Custom L/R offset 1 and Custom L/R offset 2 fields.

6. In the L/R offset field, enter the left or right offset from the target to the object, if applicable.

   If you have configured custom offsets in the Options screen, tap and select the offset.

   To set all three offset values to 0, tap and select Set offsets to 0. If all three fields are set to 0 the measurement will be treated as an Angles and distance measurement. The Set offsets to 0 option is also available from the In/Out offset and V.Dist offset fields.

7. Enter the In/Out offset from the target to the object, if applicable.

8. Enter the V.Dist offset from the target to the object, if applicable.

9. Tap Measure.

10. If you selected the View before storage check box in the survey style, the observation adjusted for the offset distance appears. Tap Store.

    The software stores the adjusted horizontal angle, vertical angle, and slope distance in the point record, as well as an offset record with the offset measurement details.

The following figure shows an example where point 5 is measured with the Offset & Stakeout directions set to Instrument perspective:

- offset to the left (2) of the target (3)
- offset out (4) from the instrument station (1)
- offset vertically (6)