sokkia_sdr33 – Sokkia SDR 33

Added in version 0.4.

Sokkia SDR33 is a format used by older models such as Sokkia SET 5F.

The format supports is based on fixed-position fields, with one record per line. SDR33 supports both polar (“raw”) measurements and cartesian coordinates (Northing, Easting, Elevation).

The first four characters of a line are useful to separate the various type of measurements:

  • prism height is marked by code 03NM

  • polar measurements are marked by the 09F1 code

  • cartesian measurements are marked by 08TP

  • base stations are marked by 02TP, because their coordinates are entered by hand as cartesian coordinates

It is uncommon for polar and cartesian measurements to be found in the same dataset.