Garmin GCV 20 Sonar Module Software

Garmin GCV 20 Sonar Module Software

as of January 7, 2021

Changes made from version 2.20 to 2.21:

  • Improved shallow water sonar depth tracking.

Changes made from version 2.10 to 2.20:

  • Added support for the GT36 transducer.

Changes made from version 2.00 to 2.10:

  • Improved sonar image quality.
  • Improved transducer detection reliability.
  • Changes to support manufacturing.

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