Interference on HDS8 - California Bass Fishing Forum
» Site Navigation
» Home
»
 > Search
 > FAQ
» Forum Search
» Insurance
Reply
 
LinkBack Thread Tools
Old 03-22-2011, 07:41 PM   #1 (permalink)
Senior Member
 
Join Date: Mar 2010
Posts: 100
Default Interference on HDS8

Its kinda wierd...HDS on bow gets "noise" when TM on, but only when the HDS is at 20ft or more in range. Does the HDS get more sensitive at greater depths? The noise goes away if I am set at -3 to -5 sesitivity, but I am probably missing stuff at that setting. TM is a '08 motorguide tour 109 . I check all the wires and they are all seperated from the 36vdc. Just switched over to HDS's my lcx27 didn't have this problem. I saw the other post regarding the 332 but this happend when I switched to HDS's. 10 at the console does't have the problem...still troubleshooting but would love some input...
marvink9 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 03-23-2011, 11:02 PM   #2 (permalink)
Senior Member
 
Join Date: Nov 2008
Posts: 203
Default Re: Interference on HDS8

Since the HDS unit doesn't have any problems by itself you need to look at the trolling motor as the cause. It's usually a ground problem inside the trolling motor. The ground wire that goes from the direction indicator light down to the brush plate is either loose at one end or the other or something like that. There have been instances like a flat spot on the brushes causing an arc that the ducer picks up or a bent armature that causes a slight vibration that the ducer is picking up. The trolling motor works fine but the HDS unit picks up the issue.

The HDS units have the broadband sonar built in and this is a more sensitive receiver in the transducer than what you were used to with the LMS 520 so that is why you are seeing the interference now.
__________________
Ken Sauret
http://www.lowrance.com/
http://kensbassfishing.weebly.com/
http://www.dobynsrods.com/
http://www.yamaha-motor.com/
Ken Sauret is offline   Reply With Quote Quick reply to this message
Old 03-24-2011, 12:35 PM   #3 (permalink)
Senior Member
 
Join Date: Mar 2010
Posts: 100
Default Re: Interference on HDS8

Thanks for the input Ken, I did have the TM repaired just befor this. I'll check the grounds. I do remember resetting my indicator arrow after it was repaired, maybe I knocked that wire clip off the post under the indicator.
marvink9 is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the California Bass Fishing Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


Thread Tools

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Interference between 596 HD and 998c visual disturbance Humminbird Info & Support Forum 1 12-30-2011 08:25 PM
Interference JIGS Humminbird Info & Support Forum 4 02-23-2011 08:03 PM
FISH FINDER INTERFERENCE JIGS Northern California 5 02-05-2011 06:30 AM
Lowrance Interference iron_man Northern California 1 03-05-2010 03:45 PM
Trolling motor Interference........ Ranger Jockey Northern California 3 12-08-2009 07:10 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -4. The time now is 01:43 PM.



Powered by vBulletin® Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL3
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.