Go Back  The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > Marine Electronics Forum
Reload this Page >

Autopilot interfering with Sonar since latest update

Notices
Marine Electronics Forum

Autopilot interfering with Sonar since latest update

Old 09-05-2017, 06:06 AM
  #1  
Member
Thread Starter
 
Join Date: Jun 2015
Location: Western Australia
Posts: 57
Likes: 0
Received 0 Likes on 0 Posts
Default Autopilot interfering with Sonar since latest update

Since the S5100 and Evo 3 latest update when using the autopilot it interferes with the sonar readings, getting lines virtically on the screen every time the autopilot engages, this never happened prior to the updates. Anyone else have this issue Evo 3, S5100, B175HW and B175M, Nac1 autopilot.
Old 10-08-2017, 08:56 PM
  #2  
Junior Member
 
Join Date: Feb 2015
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Peter Mac View Post
Since the S5100 and Evo 3 latest update when using the autopilot it interferes with the sonar readings, getting lines virtically on the screen every time the autopilot engages, this never happened prior to the updates. Anyone else have this issue Evo 3, S5100, B175HW and B175M, Nac1 autopilot.
We have exactly the same problems with a Lowrance HDS Gen 3 (our update came though in august and I believe the internals of our sonars are the same) and we use a SS175-HW (same as B175HW but in stainless).

Also use a Nac1 autopilot. Same symptoms exactly.
Old 08-05-2020, 02:23 PM
  #3  
Junior Member
 
Join Date: Aug 2020
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default

Did either of you figure out how to fix this issue? I'm noticing this issue now as well. I was hoping a recent electrical clean up would fix the issue, but no go.
Old 08-05-2020, 09:55 PM
  #4  
Senior Member
 
Join Date: Feb 2011
Posts: 897
Received 46 Likes on 41 Posts
Default

Originally Posted by Peter Mac View Post
Since the S5100 and Evo 3 latest update when using the autopilot it interferes with the sonar readings, getting lines virtically on the screen every time the autopilot engages, this never happened prior to the updates. Anyone else have this issue Evo 3, S5100, B175HW and B175M, Nac1 autopilot.
I have had similar issues since the last update. I have 2 x Evo3, S5100, SS175HW, SS175M, TM265LH, AC12 Autopilot, G4 Radar, 3DSS. I have had vertical lines which I did not have before but in my case I have found it is my Standard Horizon VHF that causes the issue. At first I thought it might be the autopilot among other candidates (!) but if I leave the VHF off I have no interference even with noise filter set to 'Off'. With VHF turned on interference is not constant but spasmodic. Overall I find the latest update for Evo3, S5100 and 3DSS excellent particularly for sonar. With improvements to performance when running it seems to me that the sonar is more sensitive. It could be that we are all now noticing interference that might have been there all along.

Last edited by BCTony; 08-05-2020 at 10:15 PM.
Old 08-08-2020, 12:10 AM
  #5  
Admirals Club Admiral's Club Member
 
Join Date: Apr 2010
Posts: 324
Received 35 Likes on 25 Posts
Default

Same here. 12” and 9” evo3’s, halo 24, B175hw and B175m. Both m and hw show vertical lines. Never any interference prior to update.
Old 08-08-2020, 12:13 AM
  #6  
Admirals Club Admiral's Club Member
 
Join Date: Apr 2010
Posts: 324
Received 35 Likes on 25 Posts
Default

Originally Posted by BCTony View Post
I have had similar issues since the last update. I have 2 x Evo3, S5100, SS175HW, SS175M, TM265LH, AC12 Autopilot, G4 Radar, 3DSS. I have had vertical lines which I did not have before but in my case I have found it is my Standard Horizon VHF that causes the issue. At first I thought it might be the autopilot among other candidates (!) but if I leave the VHF off I have no interference even with noise filter set to 'Off'. With VHF turned on interference is not constant but spasmodic. Overall I find the latest update for Evo3, S5100 and 3DSS excellent particularly for sonar. With improvements to performance when running it seems to me that the sonar is more sensitive. It could be that we are all now noticing interference that might have been there all along.
i don’t think it’s been there all along. My VHF and all power to my hardtop come down the port side and run up the port side legs, only my transducer cables come up the stbd side and they do not cross or get within a foot Any power cables or vhf antennas. Cabling running down the sides of the boat are the same way, transducer cables ran completely independent of any power cables or wires for any accessory or light. I did an electronics refresh and complete rewrite and made it a point not to have any point of interference to transducers when I routed everything.
Old 08-08-2020, 03:51 AM
  #7  
Senior Member
 
Join Date: Feb 2005
Location: Norway
Posts: 16,432
Likes: 0
Received 1,128 Likes on 918 Posts
Default

If the autopilot is creating noise for the sonar it's most probably coupling trough power.

Vertical noise can have several causes so make sure you know it's only happening when the autopilot is in Auto mode.

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.