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Oasis montaj & extensions Help and Support

Oasis montaj 2025.2

Oasis montaj 2025.2 delivers a major update to radiometric data processing with the introduction of a new Radiometric Extension, faster gravity data processing, and practical updates to streamline your workflows.

What’s new in 2025.2:

  • Radiometric Extension: Developed with Medusa Radiometrics, this extension supports data from modern sensors (up to 4096+ channels) in a single, guided workflow. Smooth spectra with NASVD or low-pass filtering, automate repetitive steps, and follow IAEA standards by default. The new extension replaces both the 256 Channel system and Praga.
  • Faster gravity terrain corrections: As a technical preview, high-resolution terrain corrections now run up to 100x faster using Evo compute services. Large datasets are processed in the background, so you can keep working without interruption.
  • Nettleton Cross-Correlation tool: Compare Bouguer anomaly densities and select the most appropriate value for your survey, supporting best practice and improving result reliability.
  • Menus grouped by product: Find tools quickly and see what’s included in each package or extension.
  • Row highlighting in databases: Compare data across channels at a glance and reduce mistakes with multi-channel datasets.
  • Direct access to map layer parameters: Access parameters from context menus in both the map and Map Manager windows for faster updates and troubleshooting.
  • Smoother Evo instance selection: Improved integration for connecting to the right Evo instance and managing data processing tasks.
  • ArcGIS Pro 3.3+ LYRX file support: Import the latest LYRX files for compatibility with current GIS workflows.

Maintained 256 Channel users will receive the new Radiometric Extension automatically. Praga is being retired.

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Training & Guides

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How to create grids (*.grd) from contour lines in Oasis montaj and Target

How to create grids (*.grd) from contour lines in Oasis montaj and Target

Objective:
I have a Geosoft map that contains a contour group.  I would like to ...
How to set my colour legend bar transparent without getting the text transparent in Oasis montaj

How to set my colour legend bar transparent without getting the text transparent in Oasis montaj

Objective:
I would like to set my colour legend bar transparent without getting the text ...
A quick guide to Time-Domain Electromagnetic VOXI inversion

A quick guide to Time-Domain Electromagnetic VOXI inversion

Recent improvements in geophysical algorithms can pull more information out of new and historical electromagnetic ...

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