Updates & Downloads
GPS 18 software version 3.30
as of February 2, 2011
(230 KB)
View system requirements
Notes:
- WARNING: If this software is uploaded to a device other than that for which it is designed, you will not be able to operate that device.
- If attempts to upload software fail, you may need to return the device to Garmin® for service.
Change History
Changes made from version 3.20 to 3.30:
- Fixed the GPGGA sentence to report the GPS fix quality indication as '6' when the unit is in dead reckoning phase.
Changes made from version 3.00 to 3.20:
- Improved reliability of non-volatile memory management.
Changes made from version 2.90 to 3.00:
- Improved USB compatibility with Macintosh computers.
- Improvements made to ensure that he unit correctly reports the validity of altitude and vertical speed.
Changes made from version 2.80 to 2.90:
- Fixed SBAS compatibility issue with Japanese MSAS system
- Drop WAAS satellites that are not transmitting useful data
- Fixed problem that caused USB connections to fail after leaving the units on for a long period of time
Changes made from version 2.70 to 2.80:
- Fixed NMEA timestamp when unit reports a lost fix.
- Added low-speed velocity masking as a new configuration option.
- Removed board revision from the PGRMT product string.
Changes made from version 2.60 to 2.70:
- Added Estimated Position, represented as an ‘E’ in NMEA sentences, as a possible GPS mode indicator. This is displayed when the unit is propagating.
Changes made from version 2.50 to 2.60:
- Improved robustness of non-volatile memory handling.
Changes made from version 2.40 to 2.50:
- Updated software for use with Garmin marine products.
- Fixed USB incompatibility with Macintosh computers.
Changes made from version 2.30 to 2.40:
- The WAAS search and selection process has been redesigned to be smarter and more robust in its handling of multiple SBAS service providers.
System requirements
- IBM-compatible PC running Windows 7 SP1 or later operating system and an available USB port.