The DP Postex add-on, works with your DP II caliper or Digitech Professional model (Bios v 1.66 and forward) to position trees and other objects in the forest. Available from Haglöf Sweden in different system configurations, all with custom rack and ultrasound transponders. All parts (together with a bubble for alignment) are delivered in aluminum transport box.
In the DP Postex system, the DP caliper and corresponding software application provides power, processor, memory and display for the Postex module. Operates with the coordinate system, determined by the custom Postex rack and three T3 transponders. Postax, a special DP caliper software application, (other compatible applications also available) is used by the DP to collect, register and process your data. The DP Postex can also be operated using with the DP II Terminal only, without the caliper measuring scale, in the case when diameter data is not needed, such as positioning of ancient remains, new plantations etc.
Many operators prefer to have the ultrasound in the DP caliper, and to measure specific tree heights using a separate instrument, such as the L5 laser. Since, with ultrasound, you are not bound to line of sight measurements and specific targets.
The positioning method for securing individual tree information works as follows. Ground measured trees are connected to a laser scanned air measuring operation to gauge information. This may also be to research specific trees on sample plots or for follow-up work.
Based on the triangulation method, this approach is known as the Postex solution. The positioning is determined by the three distances, set-up by the coordinate system in the Postex rack with transponders. Its positioning accuracy, allows for reliable results in long-term scientific research projects, on individual trees in permanent plots.
To view other Haglöf Sweden DP products, click on the related items tab above.