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Old 12-07-2006, 04:06 PM   #1 (permalink)
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Default Very Bad Car Stereo Interference

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Cingular 8100 - Is there anything that I can do to make it go away or minimise it? It is really loud and jaring.
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Old 12-07-2006, 04:46 PM   #2 (permalink)
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That's GSM for ya. It has to do with the frequency it operates at and interference with electronics. It does that with landline phones too.

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Old 12-07-2006, 04:57 PM   #3 (permalink)
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I've never had an issue with GSM phones. I always had problems with Nextel though.
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Old 12-07-2006, 05:02 PM   #4 (permalink)
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So what can I do to make it less loud. It is really bad and happens every couple of minutes.
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Old 12-07-2006, 05:05 PM   #5 (permalink)
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What are you hearing? Is it through the phone or the radio?
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Old 12-07-2006, 06:10 PM   #6 (permalink)
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It is very loud through the speakers. If I move it away from the stereo it is not as loud. But my car is small and not too much room to move it away.
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Old 12-07-2006, 06:14 PM   #7 (permalink)
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What does it sound like?
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Old 12-07-2006, 06:16 PM   #8 (permalink)
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Yes, GSM phones are notorious for this but mine is not that bad unless it is in close proximity to the radio. It also happens on my computer speakers if the phone is sitting close on the desk.
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Old 12-07-2006, 06:21 PM   #9 (permalink)
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Some GSM phones do cause that interference. Mine does that but I have a SIM card instead of no SIM card on CMDA. ;)
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Old 12-07-2006, 07:16 PM   #10 (permalink)
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Cingular has this problem. Have not noticed with tmobile.
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Old 12-07-2006, 07:54 PM   #11 (permalink)
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mine does it with tmo but only on gprs not edge where i live there is only grps
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Old 12-07-2006, 07:59 PM   #12 (permalink)
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Okay. You ahbould know its more than Gsm its Cingular its happened with a bunch of phones I had with them. I have T-Mobile now no problems. Plus I pay a lot less.
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Old 12-07-2006, 08:26 PM   #13 (permalink)
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Happens with TMO also, but seems to be less intense than Cingular
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Old 12-07-2006, 08:30 PM   #14 (permalink)
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Quote:
Originally Posted by Berry O Black
Okay. You ahbould know its more than Gsm its Cingular its happened with a bunch of phones I had with them. I have T-Mobile now no problems. Plus I pay a lot less.
Cingular uses 850 MHz, TMo uses 1900MHz. You get more GSM buzz on 850 because it typically uses more power to TX. what you're hearing is actually the TDMA channel transaction setting up an oscillation in your speaker wires (the period of the TDMA transaction makes this an audible noise).

You could always move closer to a base station
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Old 12-07-2006, 11:21 PM   #15 (permalink)
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Wow what a pain. Is this going to be a deal breaker for my new pearl that I love?
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Old 12-07-2006, 11:43 PM   #16 (permalink)
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Are you asking us if it is a deal breaker?
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Old 12-08-2006, 12:06 AM   #17 (permalink)
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I'm not asking but I'm wondering? I have 3 more weeks before my return period is over for the phone. I drive a boxster so there is not a lot of room to move the phone away from the stereo. Just not sure if I can take that noise every other minute...
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Old 12-08-2006, 04:10 AM   #18 (permalink)
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Guys, it has nothing to do with Cingular or Tmo. It only depends on the quality of cables used in the car stereo. If they are of good quality, there will be no interference, but when the cables are crap there will be a lot of interference.
That's the problem.
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Old 12-08-2006, 07:28 AM   #19 (permalink)
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Default I must disagree

Quote:
Originally Posted by Szadzik
Guys, it has nothing to do with Cingular or Tmo. It only depends on the quality of cables used in the car stereo. If they are of good quality, there will be no interference, but when the cables are crap there will be a lot of interference.
That's the problem.
I had the 7100g with Cingular and it would make that horrible noise next to ANY speaker! I couldn't place the phone in a cradle in the car unless I completely turned off the radio and I couldn't bring the phone anywhere near my bedroom because the noise would come through the speaker in the alarm clock, baby monitor, you name it!

I now have the Pearl from the T-Mob. I never hear that noise any more. I can leave it right on the night stand next to my alarm clock and nothing.

Sounds like a Cingular issue to me.
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Old 12-08-2006, 08:19 AM   #20 (permalink)
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Quote:
Originally Posted by Bu11d0z3r
I had the 7100g with Cingular and it would make that horrible noise next to ANY speaker! I couldn't place the phone in a cradle in the car unless I completely turned off the radio and I couldn't bring the phone anywhere near my bedroom because the noise would come through the speaker in the alarm clock, baby monitor, you name it!

I now have the Pearl from the T-Mob. I never hear that noise any more. I can leave it right on the night stand next to my alarm clock and nothing.

Sounds like a Cingular issue to me.
My nextel does it in my wifes car she has stock stereo and it does it bad but i have an upgraded stereo in my truck and i get zero interferance I used monster cable in my truck and shielded speakers.
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