Change History

GSD 26 software version 3.50

as of March 28, 2024

Changes made from version 3.40 to 3.50:

• Improve system integration.

Changes made from version 3.30 to 3.40:

• Newer MFDs can now view each frequency of a transducer independently without affecting other MFDs on the network.
• Added support for Airmar B75HW, B175MW, and TM185MW transducers.

Changes made from version 3.20 to 3.30:

• Added support for Airmar PM411LWM and R409LWM transducers.

Changes made from version 3.10 to 3.20:

• Increased maximum supported transmit frequency to 250 kHz

Changes made from version 3.00 to 3.10:

• Add support for additional Airmar transducers.

Changes made from version 2.20 to 3.00:

• Fixed impedance mismatch issue with Airmar 509/599 transducers described in Garmin Service Bulletin 1362.
• Added additional transducer support.
• Improved depth tracking's rejection of surface ringing with some transducer installations.
• Improved depth tracking in deep water in low SNR conditions.
• Improved noise reject to better suppress sonar crosstalk.
• Added support for synchronizing sonar scrolling between various sonar sources.
• Added support for multiple network sonar sources.
• Fixed issue where a sonar service lost message could occur in large networks.

Changes made from version 2.10 to 2.20:

• Improved connectivity on large networks.

Changes made from version 2.00 to 2.10:

• Improved sonar performance under some conditions in shallow water.
• Improved depth tracking along steep drop-offs.
• Added support for new transducers.