Garmin Gpsmap 478 - SailNet Community

   Search Sailnet:

 forums  store  

Quick Menu
Boat Reviews  
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Hatches and Portlights
Interior And Galley
Marine Electronics
Other Items
Plumbing and Pumps
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here

Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
Old 02-16-2010
Senior Member
Join Date: Jan 2008
Posts: 288
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 8
genieskip is on a distinguished road
Garmin Gpsmap 478

Has anyone else had a problem with this unit if it is used on deck? After a day or two on deck water seems to seep in at the antenna/unit joint and it packs it in. Last summer I even built a little hood for it from plexiglass and it kept the rain off it but the general dampness seems to get to it and it stops receiving the signal from the satellite. Garmin claims it is waterproof but it aint so. I sent the first unit back to them and they gave me a new one but it still has the same hang up.

Does anyone have a GPS that can really live on deck (at least while actively cruising) and keep truckin'?
Reply With Quote Quick reply to this message Share with Facebook
Old 02-16-2010
Senior Member
Join Date: Jul 2007
Posts: 406
Thanks: 0
Thanked 4 Times in 3 Posts
Rep Power: 8
CapnRon47 is on a distinguished road
Lightbulb Garmin 546

I went with the Garmin 546 because I wanted the larger and higher res screen. I have had it for 2 years with no problems (knock, knock). However I don't leave it at the wheel when I am not using the boat. I remove it and store it below. You can see the bracket to the right of the compass (behind the wheel) here.

And of course it is not meant for double duty on land and sea like the 478, but it serves the needs of the boat. It has been used out in the weather without problems.

Reply With Quote Quick reply to this message Share with Facebook
Old 02-17-2010
Join Date: Aug 2009
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
flatracker is on a distinguished road
The third Garmin

Have had three Garmin chart plotters. The second one was a 298 a few years back. It did get moisture in it in some rough weather, right after it was new. Garmin replaced it, no questions asked. Never any other problems. Current 498 has lived at the helm for three years, in some pretty nasty stuff at times. Like the old Timex watch commercials, it just keeps on tickin. I don't think I would trust any of the units that are made for street or for street/marine usage on a boat.
Dream like you will live forever. Live like you will die tomorrow. ( James Dean )
Reply With Quote Quick reply to this message Share with Facebook

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Garmin GPSMAP 640 Yamsailor Gear & Maintenance 44 12-29-2010 12:52 PM
GARMIN GPSMAP 421s csilva Electronics 4 12-16-2009 06:00 PM
Handheld Garmin GPSMAP 76 Pamlicotraveler Gear & Maintenance 6 10-01-2006 06:05 PM
Garmin GPSMAP 60Cx ...? CS...? C? geary126 Gear & Maintenance 3 08-01-2006 09:54 AM

All times are GMT -4. The time now is 04:29 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) LLC 2000-2012

The store is owned and operated by a company independent of the forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.