Connect a Garmin 740s to an Airmar DST800 - 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 > Electronics
 Not a Member? 
Old 08-12-2014
Junior Member
Join Date: Aug 2014
Posts: 1
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 0
d24bishop is on a distinguished road
Connect a Garmin 740s to an Airmar DST800

I purchased an Airmar DST800v direct from Airmar because I wanted the bronze through hull and not the plastic one that comes with the Garmin version of the device. However, instead of a connector, the end of the very long wire harness has a bunch of wires and no connector. This may sound like a silly question but how is it supposed to attach to the Garmin? Can I buy the right connector and where can I find a diagram that shows which wire is supposed to go to what pin? The 740s came with a wiring harness with a bunch of wires as well but there is an actual plug that has a tag on it that says "transducer".
Again, forgive me if this sounds like a silly question. I assume that this is all NEMA2000 stuff? The picture on the box shows a bunch of fancy plugs connecting all devices.

Reply With Quote Share with Facebook
Old 08-13-2014
Senior Member
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 2,224
Thanks: 2
Thanked 36 Times in 36 Posts
Rep Power: 4
MarkSF is on a distinguished road
Re: Connect a Garmin 740s to an Airmar DST800

The Airmar is available in NMEA 0183 and 2000 versions. Do you know which you bought? The Garmin 740 has both interfaces.

The fact it has bare wires suggests to me that it is 0183, as my DST800 in the NMEA2000 version came with a connector.
1984 Bristol 31.1
Alameda, California, USA
Reply With Quote Share with Facebook
The Following User Says Thank You to MarkSF For This Useful Post:
d24bishop (08-13-2014)
Old 08-13-2014
BarryL's Avatar
Senior Member
Join Date: Aug 2003
Location: Long Island, NY
Posts: 1,615
Thanks: 3
Thanked 27 Times in 26 Posts
Rep Power: 12
BarryL is on a distinguished road
Re: Connect a Garmin 740s to an Airmar DST800


The DST800 you bought will send depth information to the 740S. So if all you want to display is the depth of the water it will work. However, it won't connect to the Sounder port on the 740S or allow the 740S to display the fishfinder screen. If you want to display that information you will need a different transducer.

Personally, I bought a cheap (~$60) garmin transducer to connect to my 740 specifically so I can 'see' the bottom. Mine is a 'transom mount' however I expect it will work just fine to shoot through my epoxy hull. I haven't connected it (no time to run the cable under cabin sole, etc.) so I can't verify that, but I did the same thing with my O'day and it worked very well.

Barry Lenoble
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook

740s , airmar , dst8000 , garmin , nema

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
Airmar / Raymarine DST800 Transducer Issue wopalx Electronics 40 07-22-2014 01:26 PM
Have Garmin 740s....need autopilot armandolio Electronics 0 09-30-2013 07:53 PM
NMEA 2K Network Problems (Garmin GMI 10/Airmar DST800/GPS 19X (NMEA0183)) atsakir Electronics 20 02-19-2013 04:28 AM
Garmin Airmar DST800 no speed reading MarkSF Electronics 0 10-22-2012 05:27 PM
Any input Garmin 740s patrscoe Gear & Maintenance 1 07-18-2012 01:17 PM

All times are GMT -4. The time now is 04:58 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, 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.