| ScottS2K |
We have a clicking noise that occurs in the right speaker of our '04 MDX. It seems this might be caused by cell phone interference. I am wondering what is the best way to shield against this annoyance? I find it strange that Acura has this problem and I've not experienced it in any other car.
TIA. |
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| laborlitigator |
| Try unplugging the battery charger. |
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| ScottS2K |
quote:
Originally posted by laborlitigator
Try unplugging the battery charger.
We don't use one. |
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| laborlitigator |
| Does it occur with AM or FM or both? |
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| Mando |
If so, good luck. These have got to be the nastiest phones, with regards to RF interference.
I never did find a solution for my old Nextel. When I switched to TMobile, most of the interference went away. I say MOST because if the phone is RIGHT next to the stereo unit, it will cause some minor interference. No where near the same amount of interference as the Nextel, but still there.
Good luck!! |
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| ScottS2K |
It occurs with all sources (radio and CD.)
It's a T-Mobile phone. |
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| Mando |
quote:
Originally posted by ScottS2K
It occurs with all sources (radio and CD.)
It's a T-Mobile phone.
Make/Model of phone? |
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| Warzau |
| If it is GSM forget it. I had a analog phone and no problems, then I switched over to GSM and I hear the buzz buzz. At least I know when I get a long buzzzzz a phone call is coming in. |
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| ScottS2K |
quote:
Originally posted by Warzau
If it is GSM forget it. I had a analog phone and no problems, then I switched over to GSM and I hear the buzz buzz. At least I know when I get a long buzzzzz a phone call is coming in.
It's not GSM and we'll hear the noise even when a call isn't coming in. That said I do have a GSM phone and I never hear it through the radio in my car. |
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| Warzau |
| Oh I hear a noise even when a call isnt coming in. Most likely the phone is changing cell towers. It happens at the same place everytime. |
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| Emerald01 |
I hear the noise on our radio as well but it doesn't bother me that much. Either that, or I don't get/make many calls in the car.
As far as noise shielding, you can try wrapping the back of the headunit with a copper screen (make sure not to short any wires). We used to do that with older test equipment at our site and is a common practice in electronics. I also remember in the past that Alpine used copper in their casing to prevent/reduce noise and listed it as a feature. The shielding is wire serves the same purpose.
example:
"...copper plate on the bottom of the amp that rejects noise..."
http://products.consumerguide.com/c...ex.cfm/id/20896 |
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| Warzau |
| Does anyone know where one can buy copper sheets to cut and stick on to the headunit? |
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| ScottS2K |
quote:
Originally posted by Emerald01
I hear the noise on our radio as well but it doesn't bother me that much. Either that, or I don't get/make many calls in the car.
As far as noise shielding, you can try wrapping the back of the headunit with a copper screen (make sure not to short any wires). We used to do that with older test equipment at our site and is a common practice in electronics. I also remember in the past that Alpine used copper in their casing to prevent/reduce noise and listed it as a feature. The shielding is wire serves the same purpose.
example:
"...copper plate on the bottom of the amp that rejects noise..."
http://products.consumerguide.com/c...ex.cfm/id/20896
Many thanks. Like the person above, I am also wondering where I could buy this copper screen material. |
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| 04mdx4sq |
I don't know if just shielding the head unit will make your problem disappear. In many instances of aftermarket amplifiers, the noise jumps on through the interconnects. I don't know how well the factory wire is shielded or if it is a balanced output. Here is a link to a website where they sell EMI / RFI shielding
metals.http://www.tbaecp.co.uk/ |
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| Emerald01 |
Yes, the noise could enter the the system via the cables, wires, interconnects, amplifiers, etc. But I start with the headunit, then amps.
As far as where to get it (did a little google search):
http://www.twpinc.com/twp/jsp/product.jsp?type=11
They also have a table to show the amount of shielding by mesh type. It appears the finer the mesh the better. Don't know if solid sheets of copper have the same effect. |
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| mogur |
Yep, like Nextel and ATT, T-Mobile is GSM. Their pulse RF output gets in to everything. That is why such phones are banned in many hospitals.
quote:
Originally posted by ScottS2K
It occurs with all sources (radio and CD.)
It's a T-Mobile phone.
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