Lowrance HDS interfering with stereo
nocturnalmotors
Posted 5/25/2012 7:57 AM (#561826)
Subject: Lowrance HDS interfering with stereo





Posts: 373


Location: Maine Township, MN
I mounted my HDS-7 Gen2 ontop of a side console. The stereo is mounted below in the dash. Whenever the HDS is on, the stereo goes to white noise on every station. I've tried moving the antenna for the stereo all over, but it's the kind that's just a 3ft. wire out the back of the stereo.

Would I be better off with a different antenna?

Anyone else run into this?
nocturnalmotors
Posted 5/25/2012 8:07 AM (#561828 - in reply to #561826)
Subject: Re: Lowrance HDS interfering with stereo





Posts: 373


Location: Maine Township, MN
I'm networked via ethernet to structure scan if that makes a difference.
tcbetka
Posted 5/25/2012 9:13 AM (#561839 - in reply to #561828)
Subject: Re: Lowrance HDS interfering with stereo




Location: Green Bay, WI
nocturnalmotors - 5/25/2012 8:07 AM

I'm networked via ethernet to structure scan if that makes a difference.


This is on AM and FM?

The Structure Scan transducer works at either 455 or 800 kHz (LSS-1 units) or 800 kHz (LSS-2 units). The normal AM radio frequency band is in kilohertz (kHz), so I can certainly see how you might see a problem there...although it should be filtered. However FM frequencies are in megahertz, so there shouldn't be any significant interference there. But there is a lot of power into that transducer, so I suppose it's possible.

Some things that come to mind immediately:

1) How close is your LSS unit mounted to your radio? (If you can, try moving the two farther apart and see if that makes a difference.)

2) I haven't installed my system yet, but is there a filter that didn't get installed someplace in your installation?

3) Did you install this system yourself, or have it done at a dealer?

4) Has it ever worked correctly at any point?


This information might be helpful to help you work through this issue.

TB