the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

FM Frequency Noise


Post ReplyPost New Topic
< Prev Topic Next Topic >
Velocity Motors 
Moderator - Posts: 12,488
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: December 18, 2006 at 3:21 PM / IP Logged  
Had a customer with a 1993 Jeep XJ and we installed a set of 12" cooling fans for his radiator, Pioneer CD Player, 4 channel amp & mono amplifier. The problem is when he uses the FM radio, there's an alternator buzz in the speakers. THis only happens on the FM band. The AM radio & the CD player play perfectly fine without the noise. Any ideas ?
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
fox55 
Copper - Posts: 56
Copper spacespace
Joined: August 18, 2006
Location: United States
Posted: December 18, 2006 at 5:11 PM / IP Logged  
Have you tried swapping the radio yet? Does the same problem exist with the factory stereo installed? How is the ground on the antenna doing?
MECP Certified
Fry's Electronics MEI - Anaheim, Ca
"Kneel Before Zod"
Velocity Motors 
Moderator - Posts: 12,488
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Fabrication. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member has been recognized as an authority in Mobile Security and Convenience. Click here for more info.spacespace
Joined: March 08, 2002
Location: Manitoba, Canada
Posted: December 18, 2006 at 5:47 PM / IP Logged  
Haven't tried replacing the CD player yet and haven't looked at the antenna either. We will be looking at it tonight but thought I would get some options before I go into this. Thanks for the reply and I'll see later on tonight what it might be.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
rudydapimp 
Copper - Posts: 390
Copper spacespace
Joined: February 27, 2006
Location: United States
Posted: December 18, 2006 at 10:22 PM / IP Logged  
this would be mu suggestion. although i have had problems witht he factory ground in Jeeps.
dudek38 
Copper - Posts: 250
Copper spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: March 28, 2004
Location: United States
Posted: December 23, 2006 at 10:46 PM / IP Logged  
ive seen this problem with f150's. i believe the problem was a ground issue. i used a ground loop isolater from pac
owner of
Motion Marine & Car Audio
the florida keys
sin0cide 
Copper - Posts: 49
Copper spacespace
Joined: August 03, 2006
Location: United States
Posted: December 24, 2006 at 10:17 PM / IP Logged  

I wonder if the fm section of the board is grounded like rca shields are. or maybe its grounded threw the ant wire

dudek38 
Copper - Posts: 250
Copper spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: March 28, 2004
Location: United States
Posted: December 25, 2006 at 12:01 PM / IP Logged  
mmm, definitely could be an isolated problem with the fm section. im never surprised by failed electronics.
owner of
Motion Marine & Car Audio
the florida keys

Sorry, you can NOT post a reply.
This topic is closed.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Wednesday, November 30, 2022 • Copyright © 1999-2022 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer