Working with Leica hardware

To work with Leica hardware and non-Leica software packages, you must have a valid interface Geocom for total station and OWI for GNSS.

Activation codes for Leica interface Geocom and OWI

Contact your Leica support dealer to get the required codes.

OWI interface setting

The images below show the required settings in the Leica GS15 receiver (setting OWI for the correct port):

Leica Receiver settings: Measuring the antenna height

The antenna offset is predefined for each antenna type. To view the Antenna offset details, in the GNSS Method menu, tap GNSS Settings / GNSS Receiver and then tap Test.

Penmap uses the Bottom of antenna mount method to measure the antenna height; ensure that you measure the antenna height to the bottom of antenna mount as shown:

Leica GS14

Leica GS15

The internal antenna height of the Leica receiver must be Zero (0.000 m). If an internal antenna height of not 0.000 m is set in the Leica receiver, this antenna height is used for the GNSS measurement too. This means the internal antenna height is used in addition to the entered antenna height in Penmap, resulting in an incorrect height.
If the internal antenna height is not Zero (0.000 m), then change it immediately to Zero before working with Penmap.
To check if the internal antenna height of the Leica receiver is Zero (0.000 m), do the following:

  1. In Penmap, enter the antenna height which should be used for the measurement, for example 2.000 m. Perform control measurements of a known coordinated point.
  2. Compare the measured height regarding the tolerance. If the internal antenna height is Zero, the results in the height must be okay.

Do not work with the Penmap software and the internal Leica software together, while working with a Leica controller. This will result in incorrect GNSS measurements.

Leica Total Station settings

Before connecting Penmap to a Leica total station for the first time, set the prism constant to “0” (Zero) in the instrument.

After connection to the Leica total station, Penmap transfers a user-defined prism with the prism constant of Penmap to the instrument. The Leica constant is calculated internally.

Do not change the prism type/prism constant directly in the instrument when working with Penmap; otherwise wrong distances are measured and wrong results are calculated.