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- 01-06-2005, 10:59 AM #1Digital PuerGuest
I just got a Motorola v551 phone. For some reason, my computer
speakers are picking up some odd interference every hour or so
from the phone. The interference comes out as a series of
crackles, maybe 5-6 crackles. The same thing happens when I
boot up the phone. Granted my speakers are about 4 years old
(cheapo Altec Lansing 340 from Dell purchase) but I have
never had this problem.
Does anyone know what's going on? I never had this problem
with my old Motorola StarTac on Sprint.
› See More: Moto V551: hourly interference with computer speakers?
- 01-06-2005, 11:06 AM #2Mike S.Guest
Re: Moto V551: hourly interference with computer speakers?
In article <[email protected]>,
Digital Puer <[email protected]> wrote:
>I just got a Motorola v551 phone. For some reason, my computer
>speakers are picking up some odd interference every hour or so
>from the phone. The interference comes out as a series of
>crackles, maybe 5-6 crackles. The same thing happens when I
>boot up the phone. Granted my speakers are about 4 years old
>(cheapo Altec Lansing 340 from Dell purchase) but I have
>never had this problem.
>
>Does anyone know what's going on? I never had this problem
>with my old Motorola StarTac on Sprint.
Your speakers are detecting data bursts from the phone.
GSM data bursts are at 217 Hz which is in the range of human hearing.
You did not hear them before because Sprint uses CDMA - entirely different
signalling.
- 01-06-2005, 12:05 PM #3Digital PuerGuest
Re: Moto V551: hourly interference with computer speakers?
Mike S. wrote:
> In article <[email protected]>,
> Digital Puer <[email protected]> wrote:
> >I just got a Motorola v551 phone. For some reason, my computer
> >speakers are picking up some odd interference every hour or so
> >from the phone. The interference comes out as a series of
> >crackles, maybe 5-6 crackles. The same thing happens when I
> >boot up the phone. Granted my speakers are about 4 years old
> >(cheapo Altec Lansing 340 from Dell purchase) but I have
> >never had this problem.
> >
> >Does anyone know what's going on? I never had this problem
> >with my old Motorola StarTac on Sprint.
>
> Your speakers are detecting data bursts from the phone.
> GSM data bursts are at 217 Hz which is in the range of human hearing.
> You did not hear them before because Sprint uses CDMA - entirely
different
> signalling.
Thanks for the info. So I take it the problem is with my
speakers? Certainly they are decrepit (low-end model from
2001), but I don't think that that should be an issue.
- 01-06-2005, 12:40 PM #4bampGuest
Re: Moto V551: hourly interference with computer speakers?
"Digital Puer" <[email protected]> wrote in message
news:[email protected]...
>
> Mike S. wrote:
>> In article <[email protected]>,
>> Digital Puer <[email protected]> wrote:
>> >I just got a Motorola v551 phone. For some reason, my computer
>> >speakers are picking up some odd interference every hour or so
>> >from the phone. The interference comes out as a series of
>> >crackles, maybe 5-6 crackles. The same thing happens when I
>> >boot up the phone. Granted my speakers are about 4 years old
>> >(cheapo Altec Lansing 340 from Dell purchase) but I have
>> >never had this problem.
>> >
>> >Does anyone know what's going on? I never had this problem
>> >with my old Motorola StarTac on Sprint.
>>
>> Your speakers are detecting data bursts from the phone.
>> GSM data bursts are at 217 Hz which is in the range of human hearing.
>
>> You did not hear them before because Sprint uses CDMA - entirely
> different
>> signalling.
>
>
> Thanks for the info. So I take it the problem is with my
> speakers? Certainly they are decrepit (low-end model from
> 2001), but I don't think that that should be an issue.
No, there's nothing wrong with your speakers. Mine pick up the same thing
and there's nothing wrong with them. I also get the intereference, just
before my phone rings.
bamp
- 01-06-2005, 01:34 PM #5Joe FabeitzGuest
Re: Moto V551: hourly interference with computer speakers?
Conceptually, on the right track but technically, wrong.
"Mike S." <[email protected]> wrote in message
news:[email protected]...
>
> In article <[email protected]>,
> Digital Puer <[email protected]> wrote:
> >I just got a Motorola v551 phone. For some reason, my computer
> >speakers are picking up some odd interference every hour or so
> >from the phone. The interference comes out as a series of
> >crackles, maybe 5-6 crackles. The same thing happens when I
> >boot up the phone. Granted my speakers are about 4 years old
> >(cheapo Altec Lansing 340 from Dell purchase) but I have
> >never had this problem.
> >
> >Does anyone know what's going on? I never had this problem
> >with my old Motorola StarTac on Sprint.
>
> Your speakers are detecting data bursts from the phone.
> GSM data bursts are at 217 Hz which is in the range of human hearing.
> You did not hear them before because Sprint uses CDMA - entirely different
> signalling.
>
- 01-06-2005, 02:26 PM #6Digital PuerGuest
Re: Moto V551: hourly interference with computer speakers?
bamp wrote:
> "Digital Puer" <[email protected]> wrote in message
> news:[email protected]...
> >
> > Mike S. wrote:
> >> In article
<[email protected]>,
> >> Digital Puer <[email protected]> wrote:
> >> >I just got a Motorola v551 phone. For some reason, my computer
> >> >speakers are picking up some odd interference every hour or so
> >> >from the phone. The interference comes out as a series of
> >> >crackles, maybe 5-6 crackles. The same thing happens when I
> >> >boot up the phone. Granted my speakers are about 4 years old
> >> >(cheapo Altec Lansing 340 from Dell purchase) but I have
> >> >never had this problem.
> >> >
> >> >Does anyone know what's going on? I never had this problem
> >> >with my old Motorola StarTac on Sprint.
> >>
> >> Your speakers are detecting data bursts from the phone.
> >> GSM data bursts are at 217 Hz which is in the range of human
hearing.
> >
> >> You did not hear them before because Sprint uses CDMA - entirely
> > different
> >> signalling.
> >
> >
> > Thanks for the info. So I take it the problem is with my
> > speakers? Certainly they are decrepit (low-end model from
> > 2001), but I don't think that that should be an issue.
>
> No, there's nothing wrong with your speakers. Mine pick up the same
thing
> and there's nothing wrong with them. I also get the intereference,
just
> before my phone rings.
>
> bamp
I think there is indeed something wrong somewhere. My
speakers are supposedly shielded from interference.
Whether my v551 is emitting illegal signals or the
speakers are sub-standard, there is something wrong.
The hourly crackling interference is extremely annoying
(particularly with that movie "white Noise" coming out...
yikes!).
- 01-06-2005, 02:47 PM #7Larry MossGuest
Re: Moto V551: hourly interference with computer speakers?
On 2005-01-06, Digital Puer <[email protected]> wrote:
>
> I think there is indeed something wrong somewhere. My
> speakers are supposedly shielded from interference.
> Whether my v551 is emitting illegal signals or the
> speakers are sub-standard, there is something wrong.
> The hourly crackling interference is extremely annoying
> (particularly with that movie "white Noise" coming out...
> yikes!).
I think this is the only really annoying thing I've run into since
switching to Cingular a couple months ago. I get the same thing. I meant
to post about it as well. I don't think you can blame the speakers since I
hear it on my office speakers, my living room equipment, and my car stereo.
All, while not top of the line, are decent systems and in excellent shape I
don't know if it's the v551 that has an issue, or if it is indeed something
unavoidable with GSM.
--
Larry Moss, http://www.airigami.com
PO Box 23523, Rochester, NY 14692, (585) 359-8695
Airigami: The art of folding air in specially prepared latex containers.
- 01-06-2005, 03:03 PM #8Mike S.Guest
Re: Moto V551: hourly interference with computer speakers?
In article <[email protected]>,
Digital Puer <[email protected]> wrote:
>
>bamp wrote:
>> "Digital Puer" <[email protected]> wrote in message
>> news:[email protected]...
>> >
>> > Mike S. wrote:
>> >> In article
><[email protected]>,
>> >> Digital Puer <[email protected]> wrote:
>> >> >I just got a Motorola v551 phone. For some reason, my computer
>> >> >speakers are picking up some odd interference every hour or so
>> >> >from the phone. The interference comes out as a series of
>> >> >crackles, maybe 5-6 crackles. The same thing happens when I
>> >> >boot up the phone. Granted my speakers are about 4 years old
>> >> >(cheapo Altec Lansing 340 from Dell purchase) but I have
>> >> >never had this problem.
>> >> >
>> >> >Does anyone know what's going on? I never had this problem
>> >> >with my old Motorola StarTac on Sprint.
>> >>
>> >> Your speakers are detecting data bursts from the phone.
>> >> GSM data bursts are at 217 Hz which is in the range of human
>hearing.
>> >
>> >> You did not hear them before because Sprint uses CDMA - entirely
>> > different
>> >> signalling.
>> >
>> >
>> > Thanks for the info. So I take it the problem is with my
>> > speakers? Certainly they are decrepit (low-end model from
>> > 2001), but I don't think that that should be an issue.
>>
>> No, there's nothing wrong with your speakers. Mine pick up the same
>thing
>> and there's nothing wrong with them. I also get the intereference,
>just
>> before my phone rings.
>>
>> bamp
>
>
>
>I think there is indeed something wrong somewhere. My
>speakers are supposedly shielded from interference.
>Whether my v551 is emitting illegal signals or the
>speakers are sub-standard, there is something wrong.
>The hourly crackling interference is extremely annoying
>(particularly with that movie "white Noise" coming out...
>yikes!).
Typically "shielded" speakers are designed to prevent excess magnetism
from affecting nearby CRT's and other devices sensitive to magnetic
fields. This is entirely a different issue ... and one which had been
predicted in the early days of GSM implementation in the US.
- 01-06-2005, 04:23 PM #9Digital PuerGuest
Re: Moto V551: hourly interference with computer speakers?
Larry Moss wrote:
> On 2005-01-06, Digital Puer <[email protected]> wrote:
> >
> > I think there is indeed something wrong somewhere. My
> > speakers are supposedly shielded from interference.
> > Whether my v551 is emitting illegal signals or the
> > speakers are sub-standard, there is something wrong.
> > The hourly crackling interference is extremely annoying
> > (particularly with that movie "white Noise" coming out...
> > yikes!).
>
> I think this is the only really annoying thing I've run into since
> switching to Cingular a couple months ago. I get the same thing. I
meant
> to post about it as well. I don't think you can blame the speakers
since I
> hear it on my office speakers, my living room equipment, and my car
stereo.
> All, while not top of the line, are decent systems and in excellent
shape I
> don't know if it's the v551 that has an issue, or if it is indeed
something
> unavoidable with GSM.
>
Thanks for the info.
If anyone else with Cingular has a phone that's not
the Motorola v551, could you tell us if you get the
hourly crackling noise interference on your speakers.
- 01-06-2005, 04:24 PM #10Digital PuerGuest
Re: Moto V551: hourly interference with computer speakers?
bamp wrote:
> "Digital Puer" <[email protected]> wrote in message
> news:[email protected]...
> >
> > Mike S. wrote:
> >> In article
<[email protected]>,
> >> Digital Puer <[email protected]> wrote:
> >> >I just got a Motorola v551 phone. For some reason, my computer
> >> >speakers are picking up some odd interference every hour or so
> >> >from the phone. The interference comes out as a series of
> >> >crackles, maybe 5-6 crackles. The same thing happens when I
> >> >boot up the phone. Granted my speakers are about 4 years old
> >> >(cheapo Altec Lansing 340 from Dell purchase) but I have
> >> >never had this problem.
> >> >
> >> >Does anyone know what's going on? I never had this problem
> >> >with my old Motorola StarTac on Sprint.
> >>
> >> Your speakers are detecting data bursts from the phone.
> >> GSM data bursts are at 217 Hz which is in the range of human
hearing.
> >
> >> You did not hear them before because Sprint uses CDMA - entirely
> > different
> >> signalling.
> >
> >
> > Thanks for the info. So I take it the problem is with my
> > speakers? Certainly they are decrepit (low-end model from
> > 2001), but I don't think that that should be an issue.
>
> No, there's nothing wrong with your speakers. Mine pick up the same
thing
> and there's nothing wrong with them. I also get the intereference,
just
> before my phone rings.
>
> bamp
By the way, which model cell phone do you have? Do you hear the
interference on a periodic basis (e.g. every hour)?
- 01-06-2005, 05:09 PM #11SteveGuest
Re: Moto V551: hourly interference with computer speakers?
The noise coming through the speakers is due to the GSM signalling,
particularly on 850mhz systems. When the phone is transmitting, your
speakers act as an antenna of sorts and pick up the buzz.
Just keep your phone farther away from the speakers. Nothing wrong with the
phone or speakers.
--
Steve
"Joe Fabeitz" <[email protected]> wrote in message
news:[email protected]...
> Conceptually, on the right track but technically, wrong.
> "Mike S." <[email protected]> wrote in message
> news:[email protected]...
>>
>> In article <[email protected]>,
>> Digital Puer <[email protected]> wrote:
>> >I just got a Motorola v551 phone. For some reason, my computer
>> >speakers are picking up some odd interference every hour or so
>> >from the phone. The interference comes out as a series of
>> >crackles, maybe 5-6 crackles. The same thing happens when I
>> >boot up the phone. Granted my speakers are about 4 years old
>> >(cheapo Altec Lansing 340 from Dell purchase) but I have
>> >never had this problem.
>> >
>> >Does anyone know what's going on? I never had this problem
>> >with my old Motorola StarTac on Sprint.
>>
>> Your speakers are detecting data bursts from the phone.
>> GSM data bursts are at 217 Hz which is in the range of human hearing.
>> You did not hear them before because Sprint uses CDMA - entirely
>> different
>> signalling.
>>
>
>
- 01-06-2005, 05:22 PM #12John NavasGuest
Re: Moto V551: hourly interference with computer speakers?
[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]
In <[email protected]> on 6 Jan 2005
14:23:02 -0800, "Digital Puer" <[email protected]> wrote:
>If anyone else with Cingular has a phone that's not
>the Motorola v551, could you tell us if you get the
>hourly crackling noise interference on your speakers.
You'll get it with any GSM phone, including my Sony Ericsson Z600.
--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>
- 01-06-2005, 05:23 PM #13John NavasGuest
Re: Moto V551: hourly interference with computer speakers?
[POSTED TO alt.cellular.cingular - REPLY ON USENET PLEASE]
In <[email protected]> on 6 Jan 2005
14:24:17 -0800, "Digital Puer" <[email protected]> wrote:
>By the way, which model cell phone do you have? Do you hear the
>interference on a periodic basis (e.g. every hour)?
That's probably the periodic re-registration of the phone with the tower.
--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>
- 01-06-2005, 07:02 PM #14JerGuest
Re: Moto V551: hourly interference with computer speakers?
Steve wrote:
> The noise coming through the speakers is due to the GSM signalling,
> particularly on 850mhz systems. When the phone is transmitting, your
> speakers act as an antenna of sorts and pick up the buzz.
>
> Just keep your phone farther away from the speakers. Nothing wrong with the
> phone or speakers.
>
It ain't the speakers - it's the wires connecting the speakers to the
amp equipment that pick up the interference. My remedy was to use
coaxial cables for the speaker wires. Aside from that, the only other
thing that can be done is physical separation of more than a few feet.
Most cell phone wired headsets have a filter circuit embedded in the
headset jack and blue tooth headsets don't need it.
--
jer
email reply - I am not a 'ten'
- 01-06-2005, 08:57 PM #15Digital PuerGuest
Re: Moto V551: hourly interference with computer speakers?
Jer wrote:
> Steve wrote:
>
> > The noise coming through the speakers is due to the GSM signalling,
> > particularly on 850mhz systems. When the phone is transmitting,
your
> > speakers act as an antenna of sorts and pick up the buzz.
> >
> > Just keep your phone farther away from the speakers. Nothing wrong
with the
> > phone or speakers.
> >
>
>
> It ain't the speakers - it's the wires connecting the speakers to the
> amp equipment that pick up the interference. My remedy was to use
> coaxial cables for the speaker wires. Aside from that, the only
other
> thing that can be done is physical separation of more than a few
feet.
> Most cell phone wired headsets have a filter circuit embedded in the
> headset jack and blue tooth headsets don't need it.
>
> --
> jer
> email reply - I am not a 'ten'
Jer - you are absolutely right, it's the unshielded
audio wire that's causing the problem. I have a thick
cable coming from my subwoofer up the front side of my
desk to the satellite speakers. Last night when I
put down my new cell phone prior to going to bed, I
positioned it right next to the cable. Thanks for the
insight. Interestingly, the cable is shielded enough
such that I don't get any usual interference from
my CPU case. Guess the GSM signal must be stronger.
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