With Decca, you can convert between Decca lane counts and geographic or UTM coordinates. Calculations can be made in ED50 or WGS84. Batch processing to and from ASCII files is possible. More information on this zip file is available below the download.

System requirements

  • Operating system: Windows 95 or higher;
  • Processor: Pentium;
  • RAM: 64 MB;
  • Disk space: 1.9 MB.

Terms of use

This product is free to download. Use of the product for any purpose is subject to the following conditions:

  1. Commercial use of the product is prohibited, with the exception of activities for which the Hydrographic Service has granted explicit permission. This means that you may not, for example, generate a substantial income directly or indirectly from the product provided. This also applies to the provision of this product to others free of charge in a manner damaging to the commercial interests of others.
  2. You are not permitted to make the product available to others without explicit prior consent from the Hydrographic Service.
  3. You must delete the product if you no longer need it.