Resection - Topcon Pocket-3D Reference Manual

On the transmitter height dialog box, select one of the following and
press OK to measure (Figure 2-35). During the measurement, the
Measuring dialog box displays.
1. If the transmitter is set up over a known control point, tap the first
radio button, then select the control point from the drop-down list.
2. If the transmitter is set up over a point with a known elevation
press the second radio button, then enter the elevation of the
Rover receiver.
When done, the Transmitter height fields display the vertical
difference between the height originally specified for the transmitter
and the calculated height (Figure 2-35).
3. Press OK to apply the measured height to the transmitter setup.
4. Press Cancel to exit without saving the measurement.

Resection

The resection function measures an unknown transmitter location
using the rover and three or more points. In general, the results from a
resection are adequate for horizontal positioning of the transmitter (an
error estimate will also display). Performing a height check and
adjustment will fine-tune the calculated elevation.
When performing a resection, use the following guidelines to ensure
accurate measurements at the Rover points:
P/N 7010-0628
Figure 2-35. Measure Height of Transmitter
mmGPS Applications
2-25