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.

In article <1105030779.219416.322160@z14g2000cwz.googlegroups.com>,
Digital Puer <digital_puer@hotmail.com> 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.

Mike S. wrote:
> In article <1105030779.219416.322160@z14g2000cwz.googlegroups.com>,
> Digital Puer <digital_puer@hotmail.com> 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.

"Digital Puer" <digital_puer@hotmail.com> wrote in message
news:1105034733.826082.312500@c13g2000cwb.googlegroups.com...
>
> Mike S. wrote:
>> In article <1105030779.219416.322160@z14g2000cwz.googlegroups.com>,
>> Digital Puer <digital_puer@hotmail.com> 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

Conceptually, on the right track but technically, wrong.
"Mike S." <retsuhcs@xinap.moc> wrote in message
news:crjr6e$86g$1@reader1.panix.com...
>
> In article <1105030779.219416.322160@z14g2000cwz.googlegroups.com>,
> Digital Puer <digital_puer@hotmail.com> 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.
>

bamp wrote:
> "Digital Puer" <digital_puer@hotmail.com> wrote in message
> news:1105034733.826082.312500@c13g2000cwb.googlegroups.com...
> >
> > Mike S. wrote:
> >> In article
<1105030779.219416.322160@z14g2000cwz.googlegroups.com>,
> >> Digital Puer <digital_puer@hotmail.com> 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!).

On 2005-01-06, Digital Puer <digital_puer@hotmail.com> 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.

In article <1105043184.164401.96850@f14g2000cwb.googlegroups.com>,
Digital Puer <digital_puer@hotmail.com> wrote:
>
>bamp wrote:
>> "Digital Puer" <digital_puer@hotmail.com> wrote in message
>> news:1105034733.826082.312500@c13g2000cwb.googlegroups.com...
>> >
>> > Mike S. wrote:
>> >> In article
><1105030779.219416.322160@z14g2000cwz.googlegroups.com>,
>> >> Digital Puer <digital_puer@hotmail.com> 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.

Larry Moss wrote:
> On 2005-01-06, Digital Puer <digital_puer@hotmail.com> 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.

bamp wrote:
> "Digital Puer" <digital_puer@hotmail.com> wrote in message
> news:1105034733.826082.312500@c13g2000cwb.googlegroups.com...
> >
> > Mike S. wrote:
> >> In article
<1105030779.219416.322160@z14g2000cwz.googlegroups.com>,
> >> Digital Puer <digital_puer@hotmail.com> 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)?