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Mobile install: Radio Grounding

This is the place to post your general tips or ask questions about your installation, whether it's for mobile or base stations.
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rchydro
Super Mud-Duck
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Joined: Jul 21 2011, 18:30
Real Name: Steve Carter
Antenna: K40
Radio: cobra 138 xlr

Mobile install: Radio Grounding

#325120

Post by rchydro »

Greetings
I have been messing around with the radio "A Cobra 138 XLR" I plan to use in my 2001 Chevy PU.
Do I need to ground the "Body" of the radio ? I know the radio is grounded thought the power cord.
But with so much plastic in the cab of the truck the outside of the radio is not going to get grounded unless I do it.
Thanks Steve
.
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'Doc

#325138

Post by 'Doc »

Won't hurt, might help. Why not?
- 'Doc
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Radar-DLDN
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#325142

Post by Radar-DLDN »

'Doc wrote:Won't hurt, might help. Why not?
- 'Doc
One of the most simple, succinct answers I have heard. Love it.

I ran a wire from one of the door bolts to the mounting bolt on the radio and it helped reduce the noise from the motor. For a few feet of wire and no real work involved there really isn't any reason not to.
Radar - Toledo, Ohio - Mod Duck
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str8stroke
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#325159

Post by str8stroke »

Steve, Welcome to the forum. If you are just installing a basic radio and antenna and you may not need to bother. If the "NB/ANL" takes out enough noise to make you happy, and as long as there are no buzzing sounds when you transmit, I would not bother. Just my opinion.
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drdx
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#325189

Post by drdx »

If you do have to run a ground, as in your plastic situation, meaning that your mounting situation doesn't make it to where it isn't automatically grounding it, then keep the ground as SHORT as possible, as in under a foot, and the bigger the wire the better. Braid is best. That said, if it is just the radio and antenna you could get away without it as many do. Now in less than 2 weeks after you mount it all up you're going to want to ground it because you will be acquiring an addiction. You'll want more power, in the form of an amp, where grounding can be much more important and problematic.

Welcome, and dont' forget that the antenna is the most important part.

-drdx
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015reddog
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#325228

Post by 015reddog »

drdx wrote:If you do have to run a ground, as in your plastic situation, meaning that your mounting situation doesn't make it to where it isn't automatically grounding it, then keep the ground as SHORT as possible, as in under a foot, and the bigger the wire the better. Braid is best. That said, if it is just the radio and antenna you could get away without it as many do. Now in less than 2 weeks after you mount it all up you're going to want to ground it because you will be acquiring an addiction. You'll want more power, in the form of an amp, where grounding can be much more important and problematic.

Welcome, and dont' forget that the antenna is the most important part.
-drdx
+1, exactly. Great post.
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rchydro
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Joined: Jul 21 2011, 18:30
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Antenna: K40
Radio: cobra 138 xlr

#325740

Post by rchydro »

Thanks to all who replied, Looks like finding a ground in side the cab is a good thing.
And the weather man said "The high for the day is not going to be a+100 deg."
So.... outside I go.
Thanks Steve
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