Notices
Marine Electronics Forum

Transom mounted GSD20 transducer

Old 07-25-2005, 08:39 PM
  #1  
Senior MemberCaptains Club Member
Thread Starter
 
Join Date: Jul 2004
Location: Eastern shore, MD
Posts: 139
Likes: 0
Received 0 Likes on 0 Posts
Default Transom mounted GSD20 transducer

I had a Garmin GSD20 fishfinder installed on my new G-W 22' a few weeks ago. It is connected to the 2006C GPS chartplotter. It seems to work fine except when I get up on plane. Then the sounder records a consistent depth of 1.6 feet, which I know is propwash. The transducer was mounted by my boatyard mechanic.
Can anyone tell me whether there are any software "adjustments" or settings I can make on the unit which will reduce its sensitivity to the propwash, or is my only solution moving or replacing the transducer??? I have the unit set to 200 KHz. I don't need more than 50 feet max. depth where I go boating (Chesapeake Bay).
Old 07-25-2005, 08:44 PM
  #2  
Senior MemberCaptains Club Member
 
Join Date: Aug 2004
Location: Louisiana
Posts: 1,513
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Transom mounted GSD20 transducer

You might be able to just adjust the pitch and height of the transducer. If you could post a pic of the transducer how it is mounted that would be great.
Old 07-25-2005, 09:29 PM
  #3  
Member
 
Join Date: Jul 2005
Location: Mecahnicsville, VA
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Transom mounted GSD20 transducer

It is pretty certain the transducer is not getting a laminar flow of water. Picture would be good, taken from side view showing boat bottom and transducer junction. Is it by any chance directly behind a raw water intake? Sounds like it is too high, behind an object that disturbs the water flow or tilted up instead of slightly down.
Old 07-25-2005, 09:34 PM
  #4  
Senior MemberCaptains Club Member
 
Join Date: Aug 2004
Location: Louisiana
Posts: 1,513
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Transom mounted GSD20 transducer

Since your boat is in the water it is hard to get a picture. When you get out to the boat, one thing to check is if the transducer is locked into position also. I have seen many that people thought it was snapped in but once they got up the transducer just kicked up.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.