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Circumstances beyond my control

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wcm321 
Member - Posts: 4
Member spacespace
Joined: November 23, 2002
Location: United States
Posted: January 10, 2003 at 7:14 PM / IP Logged  

 I would like to know what to use to shield my RCAs from the possibility of picking up noise from being to close to my ground cable. The one thing I did not plan for when making my amp rack, my RCAs and my ground wire cross each other under the rack.Oh well my first try at install, live and learn. Thanks!

Bill M.

Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: January 12, 2003 at 12:28 AM / IP Logged  
Hey Bill, it's not the ground wires that you want to isolate your RCA's from. It's the power wires that you want to watch out for. The power wire induces engine whine that the RCA's pick up when run too close to gether. What you want to do to isolate them as far as an easy way is to run each down one side of the car and when they meet by the amplifier it's OK for them to be together, but try to limit the amount of distance they are touching together.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
wcm321 
Member - Posts: 4
Member spacespace
Joined: November 23, 2002
Location: United States
Posted: January 12, 2003 at 5:10 AM / IP Logged  

 Thanks Jeff

 The power wires and RCAs are seperated on different sides of the vehicle, they are even apart at the amps , it's just the ground wires that they cross over, so hopefully there won't be any noise. Thanks again for the info !

                                                                                                  Bill M.

Velocity Motors 
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Joined: March 08, 2002
Location: Manitoba, Canada
Posted: January 12, 2003 at 8:31 AM / IP Logged  
No problem. Post if you have any problems.
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
CharlzO 
Member - Posts: 45
Member spacespace
Joined: June 02, 2002
Location: United States
Posted: January 18, 2003 at 4:35 PM / IP Logged  
PS: They do say that if they have to cross each other, do it at a 90 degree angle whenever possible.
St. Dark 
Member - Posts: 16
Member spacespace
Joined: November 15, 2002
Location: United States
Posted: January 25, 2003 at 1:34 PM / IP Logged  
Actually, power and ground are the halves of the same circuit- like the two prongs on a plug for a lamp. Ground will have the same exact current as the power for that specific piece of gear. Shielding is pretty much a dead effort in a car- run good twisted pairs and as above: avoid or do 90degree crosses.
St. Dark 
Member - Posts: 16
Member spacespace
Joined: November 15, 2002
Location: United States
Posted: January 25, 2003 at 1:52 PM / IP Logged  
Actually, power and ground are the halves of the same circuit- like the two prongs on a plug for a lamp. Ground will have the same exact current as the power for that specific piece of gear. Shielding is pretty much a dead effort in a car- run good twisted pairs and as above: avoid or do 90degree crosses.

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