- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Does your Garmin GPSMAP 545s freeze up? Is the screen stuck, or do you loose satellite coverage?
I recommend upgrading the system software of your Garmin 545s. There
may not be physical damage to your unit, and it may be completely
revitalized by replacing the GPSMAP software with the latest version
5.30 (as of January 7, 2010).
Click on "Download" and choose to save the file to your computer.
Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
Once the download is complete, go to the location where you saved the file.
on the downloaded file. This will automatically extract the files to
C:\Garmin and run a program to transfer the software update to an SD
Load the SD card into your GPSMAP 545s and turn it on to replace the system software of your unit.
Sounds like the transducer is installed at the wrong angle or in such a way that it is getting a lot of air from something on the hull. If it is a transom mount, check that it is angled correctly and not too close to the motor or aft of some kind of thru-hull fitting that will cause turbulence.
Generally, that indicates air bubbles in the water under the transducer. If you have a transom-mount transducer, make sure the bottom surface is level or angled slightly down. If you have a thru-hull, make sure your bottom is fairly clean in that area.