How to set the antenna height for simultaneous Hybrid Positioning™ and GNSS

To review the detailed information on how to set the antenna height in a single equipment setup ready for both, Hybrid Positioning™ and standard GNSS surveys.

MAGNET Field provides the method to configure a single set of equipment ready for use in all types of surveys, no disassembling and no settings changing required when switching between survey types.

Actual equipment setup (distance values are used as an example):

  • A - top of the pole (2m from the ground point).
  • B - the center offset (0.05m - the distance from the top of the pole to the center of the reflector, can be measured manually if unknown).
  • C - antenna offset (0.055m - the distance from the center of the reflector to the adapter's screw fastening, can be measured manually if unknown).
  • D - adapter length (0.1m).
  • E - Hybrid Positioning™ antenna offset (0.155m) is calculated as a sum of C (antenna offset) + D (adapter length).
  • F - offset for standard GNSS survey that should be entered as an antenna adapter (0.205m) is calculated as a sum of B (center offset) + C (antenna offset) + D (adapter length).

Standard GNSS survey:

For a standard GNSS survey, the antenna height value and the adapter length should be properly set up.

In the Rover Receiver dialog of the GNSS survey configuration wizard, click the Ant Height button and select Edit. In the open Antenna Setup dialog, enter:


Hybrid Positioning™ survey:

For a Hybrid Positioning™ survey, the correct antenna height value should be set via custom prism creation.

In the Survey Settings dialog of the optical survey configuration wizard, select your Prism configuration as FS Target and click . In the open Targets dialog, click Add to create the required custom prism configuration. In the open New Target / Edit Target dialog, enter:


Properly configured antenna height in MAGNET Field delivers precise results with single equipment setup in both, Hybrid Positioning™ and standard GNSS surveys.