Moto V551: hourly interference with computer speakers?

I have a siemens sl56 (not cheap) and a panasonic gd55 which makes the exact
same 3 popping noises in the car and on 3 different computers. Co-workers
with gsm all do the same with their phones. It is a GSM quirk but it lets
you know before it rings you are getting a call. Funny to watch someones
face as you reach down and answer your phone before it vibes or rings!
Everytime I hear that noise i reach for my phone now without realizing it.


"Digital Puer" <[email protected]> wrote in message
news:[email protected]...
>
> 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.
>

---

› See More: Moto V551: hourly interference with computer speakers?

I have a Motorola V551 now and I get this same buzzing noise although it
doesn't seem to be as bad as my previous phones which were a Sony Ericsson
T68i and a Sony Ericsson T226. The Sony's would buzz my car stereo, the
speaker phone in my companie's conference room and other speakers it
happened to be nearby. It will reliably do it prior to recieving a call
(which is fun in the conference room because I know a call is coming in
before the phone rings) as well as in specific locations where I suspect the
buzzing occurs due to tower hand-off. By the way, it would do this on ATT
service or Cingular service.

Cheers
TC

"Digital Puer" <[email protected]> wrote in message
news:[email protected]...
>
> 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.
>

My Blackberry 2 -way pager does the same thing. Periodically, it is
"handshaking with the system which requires it to transmit a "I here and
available" msg.
"Digital Puer" <[email protected]> wrote in message
news:[email protected]...
>
> 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!).
>

Digital Puer wrote:

> 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.
>

I don't know if it's stronger or what, but it's certainly different
enough to be noticable. Like you said, the PC speakers are shielded due
to the magnets inside, so I figured it wasn't the speakers themselves.
My PC though was the most aggravating, so I replaced the typical speaker
wiring with 2-wire w/coaxial shield, and connected the shield to a screw
on the PC case, and the PC has been happy since. I got the new cable
from Rad Shack. I get this same interactance (my word) in other places,
too, like in the car. The car has speaker wiring all over the place,
often hidden behind metal body panels, so I'm not certain where the
exposure points are. However, modifying all the car wiring would be a
major pain, so I'll live with the minor annoyance there.

--
jer
email reply - I am not a 'ten'

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.

I'm re-inserting this new response early into this growing thread because
I finally found the old document I had referred to in the earlier
response. Early in GSM implementations in the US there were some pretty
frank discussions about its potential to interfere with nearby electronic
devices. Since I do not have a direct link to the text quoted, rather
I only have a link to the entire digest, I am posting the relevant
excerpt:


http://www.phreak.org/archives/The_H...2/td14_127.txt


[begin quoted text]

Date: 11 Mar 94 21:34:21 EST
From: Stewart Fist <[email protected]>
Subject: GSM and TDMA Problems


John Sims <[email protected]> asks about the problems with GSM.

[snip]

The main problems are the R/F interference effects, and these are
common to all TDMA systems (including the new DECT and DCS-1800) and
they are cumulative -- so we see only a few signs of the problems now,
but like automobile pollution growth in cities, it will get worse as
the population of users grows. There are four main problems here:

1. General R/F pollution. Any system that switches its R/F
transmitter on and off rapidly (GSM does it 217 times a second, TDMA
does it 50 times) will scatter EMI throughout the adjacent radio
spectrum. And the sharper the edge of the switch power (on and off),
the wider the band of hash it scatters. These sets need a 3-5MHz
guard-band between them and analog AMPS channels,and they try to ramp
up the power, and still they scatter crap into nearby television
broadcast bands. We've never had anything that generates EMI like a
GSM handset before in these bands. We need large numbers of them like
we need a hole in the head.

2. Audio-Hz interference. The on-off cycle of transmission power will
be read by any analog circuit nearby (with any rectification or
asymmetrical circuits) as an intrusive audio tone of 217Hz, and the
two major harmonics above. This buzz intrudes into hearing aids at
distances up to 30 metres, and is often intolerable at 2 metres. It
also gets into cassette recorder, wireline systems, and into modems as
a carrier tone.

3. Digital byte intrusions. In digital circuits, where the track on a
circuit board is about the length of a GSM antenna, the on-off cycle
of transmission power is often being read as a data-byte. If only one
GSM handset is operating in a vicinity, it will pulse in the first (of
eight) slots in a frame, and so produce a 1000 0000 byte at 217 bytes
(1736 bits) a second. This can also be read as 1100 0000, 0000 0000
at 3.4kbit/s, or 1110 0000 etc. at 5.2kbit/s (and so on).

When two or more handsets are working in the same location, they are
all synchronised to the same base-station (same or different
channels). So amplitude effects (same slot, different channels) are
cumulative: the fact that they may be using different channels is
immaterial, so the range of interference can increase. A number of
handsets will combine to create what amounts to random number
generation (they are also frequency hopping) of power pulses in
digital control circuits nearby.

This seems to hit some electronic equipment (laserprinters, modems,
PCs, TV controllers, possibly air-bag triggers) hard, and have wierd,
and often un-reproducable effects. The randomness seems to be the
problem in detecting what caused some 'event'. It is virtually
impossible to reproduce the conditions.

This is why some people report no problems at all, others say it
knocks out their Powerbook or modem or multiplexer, occasionally, or
every time. Obviously some equipment is far more susceptible than
others -- but not just in terms of needing EMI shielding.

4. The last EMI problems is the remote possibility (and I stress
'remote possibility') that the pulsation of the microwaves can create
a different type, or order, of health problems to analog. Analog is
expected to only have a 'brain and eye-lens' heating effect (but not
everyone is convinced about this).


[end quoted text]

On Thu, 06 Jan 2005 20:47:04 +0000, 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.

I've had the same problem at work with my old Nokia TDMA phone. Just
before a call, and occasionally at other times.


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I have the same situation with my new Treo 600. Static sporatically from
my TV and radio speakers even with the radio and tv off! I thought I was
going crazy the first week. It took me that long to figure it out.

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.
>

I think that this has something to do with the system and GSM.

When I had Sprint, I never had this happen. Now that I have AT&T with
a Morotola V505 and A630, it happens about once an hour or so and also
when I have an incoming phone call.

I work in a public saftey communications center and the entire system
is well shileded and it still happens. I just have to make sure that
the phone is at least 3 feet away from the speakers to minimize (note
it does not eleminate it) what is coming over them. An interesting
note is that the interference does not get recorded on the numerous
recorders that we have.

Scott





On Sun, 09 Jan 2005 15:20:34 GMT, Dave <[email protected]>
wrote:

>I have the same situation with my new Treo 600. Static sporatically from
>my TV and radio speakers even with the radio and tv off! I thought I was
>going crazy the first week. It took me that long to figure it out.
>
>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.
>>

Three cheersm Kerry lost!

Scott wrote:
> I think that this has something to do with the system and GSM.
>
> When I had Sprint, I never had this happen. Now that I have AT&T with
> a Morotola V505 and A630, it happens about once an hour or so and also
> when I have an incoming phone call.
>
> I work in a public saftey communications center and the entire system
> is well shileded and it still happens. I just have to make sure that
> the phone is at least 3 feet away from the speakers to minimize (note
> it does not eleminate it) what is coming over them. An interesting
> note is that the interference does not get recorded on the numerous
> recorders that we have.
>
> Scott

If the interactance (my word) still happens, it's because there's still
something somewhere that's unshielded. Speaker wiring typically is not
shielded, nor are headset cords. Having shielded cabling for speakers
alone isn't enough - the coaxial shield needs to be electrically
connected to chassis ground. Recording mechanisms (tape recorders,
microphones, pre-amps, etc) are always shielded because they deal with
very low signal levels - if they weren't shielded they'd pick up all
sorts of extraneous noise somewhere along the signal path. OTOH, if
fidelity at the low-end of the audio spectrum isn't a major issue, an
audio filter can eliminate (or significantlt reduce) the interactance by
attenuating all frequencies below 300Hz in the audio line. As I posted
in another thread earlier, cell phone headsets use unshielded cabling,
but have a filter at the headset jack for both receive and transmit
audio - otherwise we'd be listening to this all the time on headsets.

If I was working in a comm center, I'd contact my site engineer to see
if they could replace all the speaker wiring with shielded cabling -
sure would make life a lot easier. Since I've done this on my own PC
speakers, I no longer hear that crap in here. I used 2-wire 24 guage
cable w/coaxial braided shield. The two internal wires connect normally
to the speakers, but the coaxial shield is pigtailed with a small piece
of the old speaker wire and attached to a metal chassis screw. This
electrical bond to the PC chassis only needs to be accomplished on the
PC end, the speaker end of the shield need not be connected to anything.
If esthetics means anything, a little heat-shrink tubing hides a world
of sins. Any Radio Shack has all you need for a few bucks.

--
jer
email reply - I am not a 'ten'

I've been getting the same thing here at work. I've also noticed that
the wireless net connection drops off several times a day. After a
minute or so it will reconnect. I'm wondering if it's some kind of
interference from the phone. Maybe GSM interferes with 802.11b?

-GS


On 6 Jan 2005 08:59:39 -0800, "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.

Date: 11 Mar 94 21:34:21 EST
From: Stewart Fist <[email protected]>
Subject: GSM and TDMA Problems


John Sims <[email protected]> asks about the problems with GSM.

They are pretty much the same as with all TDMA systems, including the
TDMA now being introduced into the USA -- and they'll be worse with
DECT and DCS1800 which are designed to be used indoors in large
offices.

You can look at these problems in a number of different ways and at a
number of different levels. The primary problem is that they were
introduced in competition to perfectly good analog cellular networks,
and they failed to provide any real customer advantages. A system
needs to be better than the one it replaces. The magical name
'digital' doesn't carry much weight with customers after a while.

Coverage area is another major problem, and here the American TDMA has
a better solution than GSM because it emphasised dual-mode handsets
with analog providing coverage where digital wasn't available. GSM
didn't do this, so in most nations with the system (except Germany)
you are limited to a very small coverage area, and a very limited
range of base-stations, often with minimal equipment, and with great
holes in the cells. Drop outs on the Sydney GSM networks seem to
range between 40% and up to 80% for a car crossing the city.

Sound quality in all digital systems seems to be consistent, but only
'acceptable'. While good static-free reception extends to the
boundaries of the cell, they do all suffer from a staccato-like effect
when driving down tree-line corridors (especially after dew or rain)
and they drop the link precipitously, without warning, at the
boundary. This is not how consumers think a phone system should
behave.

Within buildings, they have many more penetration and Rayleigh-fading
problems than analog also. Range of a GSM cell, at present is limited
to 35kms, which is too small for Australia, but this will be fixed in
1996 by slot-stealing.

GSM and TDMA base stations also need to radiate from higher points for
good coverage, but if they do that, they then interfere with other
cells. Capacity is set by the amount of general R/F interference
being introduced, and generally they seem to be only getting two to
three-times that of AMPS.

International roaming was the big story behind GSM, and it is
certainly important to 2% of European owners who daily drive across
the Continent. However AMPS is a far better system if an Australian
wants International roaming, because it is used in New Zealand,
Australia, most of Asia, and the America's. What we needed for good
international roaming was a dual-mode AMPS/TACS handset (and the
difference is really only in the R/F stage, so this would have been
easy to do).

The main problems are the R/F interference effects, and these are
common to all TDMA systems (including the new DECT and DCS-1800) and
they are cumulative -- so we see only a few signs of the problems now,
but like automobile pollution growth in cities, it will get worse as
the population of users grows. There are four main problems here:

1. General R/F pollution. Any system that switches its R/F
transmitter on and off rapidly (GSM does it 217 times a second, TDMA
does it 50 times) will scatter EMI throughout the adjacent radio
spectrum. And the sharper the edge of the switch power (on and off),
the wider the band of hash it scatters. These sets need a 3-5MHz
guard-band between them and analog AMPS channels,and they try to ramp
up the power, and still they scatter crap into nearby television
broadcast bands. We've never had anything that generates EMI like a
GSM handset before in these bands. We need large numbers of them like
we need a hole in the head.

2. Audio-Hz interference. The on-off cycle of transmission power will
be read by any analog circuit nearby (with any rectification or
asymmetrical circuits) as an intrusive audio tone of 217Hz, and the
two major harmonics above. This buzz intrudes into hearing aids at
distances up to 30 metres, and is often intolerable at 2 metres. It
also gets into cassette recorder, wireline systems, and into modems as
a carrier tone.

3. Digital byte intrusions. In digital circuits, where the track on a
circuit board is about the length of a GSM antenna, the on-off cycle
of transmission power is often being read as a data-byte. If only one
GSM handset is operating in a vicinity, it will pulse in the first (of
eight) slots in a frame, and so produce a 1000 0000 byte at 217 bytes
(1736 bits) a second. This can also be read as 1100 0000, 0000 0000
at 3.4kbit/s, or 1110 0000 etc. at 5.2kbit/s (and so on).

When two or more handsets are working in the same location, they are
all synchronised to the same base-station (same or different
channels). So amplitude effects (same slot, different channels) are
cumulative: the fact that they may be using different channels is
immaterial, so the range of interference can increase. A number of
handsets will combine to create what amounts to random number
generation (they are also frequency hopping) of power pulses in
digital control circuits nearby.

This seems to hit some electronic equipment (laserprinters, modems,
PCs, TV controllers, possibly air-bag triggers) hard, and have wierd,
and often un-reproducable effects. The randomness seems to be the
problem in detecting what caused some 'event'. It is virtually
impossible to reproduce the conditions.

This is why some people report no problems at all, others say it
knocks out their Powerbook or modem or multiplexer, occasionally, or
every time. Obviously some equipment is far more susceptible than
others -- but not just in terms of needing EMI shielding.

4. The last EMI problems is the remote possibility (and I stress
'remote possibility') that the pulsation of the microwaves can create
a different type, or order, of health problems to analog. Analog is
expected to only have a 'brain and eye-lens' heating effect (but not
everyone is convinced about this).

Digital TDMA introduces a new factor. It is known for instance, that
some enzyme reactions in chemical processes are sped up enormously
when hit by pulsating R/F, but no one seems to know why. This needs a
lot more research, but is no reason for panic. However, it can't be
dismissed, like may technophiles seem to do.

The real problem with both GSM and American TDMA is the way in which
all these problems were kept secret, and the systems were rolled out
slowly and quietly without anyone admitting problems until the press
started shouting. When they play these sorts of games, they have only
themselves to blame when the press reacts strongly and shouts 'foul'
especially when it is likely to be hearing-impaired people who suffer
in office environments.

Later, problems were reluctantly admitted, but always the admission
was associated with "Don't worry, well fix it!" which is just another
of their lies. Most of these problems are intrinsic in time-division
power pulsing.

More recently the tactic has changed once again: now they blame the
lack of shielding on hearing-aids and other electronic equipment, and
want to boost the standard of immunity, rather than reduce their own
emissions.

It's the smoke-stack blaming inefficiencies in gas-masks for the
problems. ETSI is its own worst enemy.

GSM doesn't interfere with 802.11b (absent serious radio malfunction).
Something else is going on.

In <[email protected]> on Tue, 01 Feb 2005 11:01:27
-0500, Ygar <[email protected]> wrote:

>I've been getting the same thing here at work. I've also noticed that
>the wireless net connection drops off several times a day. After a
>minute or so it will reconnect. I'm wondering if it's some kind of
>interference from the phone. Maybe GSM interferes with 802.11b?

>On 6 Jan 2005 08:59:39 -0800, "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.

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

Ygar wrote:
> I've been getting the same thing here at work. I've also noticed that
> the wireless net connection drops off several times a day. After a
> minute or so it will reconnect. I'm wondering if it's some kind of
> interference from the phone. Maybe GSM interferes with 802.11b?
>
> -GS


Someone was reporting that a software glitch would cause signal resets
and that rebooting the phone once a day should dramatically reduce (if
not eliminate) the problems associated with it. I think it was the
V5551, V180, V220, and a couple of other ones.

TH

Sorry John, your wrong , ever since I got the v551, and I have it
next to the netgear wireless router WGT624, in my office, every hour,
the router will make buzzing noises for about 5 seconds, now wether
or not this is a software glitch, which Moto is NOT going to admit,
is beyond me, But when the phone is not in the office no buzzing
noise happens.

"Michael3977" <[email protected]> wrote in message
news:[email protected]...
> Sorry John, your wrong , ever since I got the v551, and I have it
> next to the netgear wireless router WGT624, in my office, every hour,
> the router will make buzzing noises for about 5 seconds, now wether
> or not this is a software glitch, which Moto is NOT going to admit,
> is beyond me, But when the phone is not in the office no buzzing
> noise happens.
>

This is not a Motorola software issue. Both my previous Sony Ericsson T68i
and 226 as well as my current Moto V551 produce buzzing noises when anywhere
near a speaker system such as the company's conference room speaker phone,
the radio in my car or my PC speakers. The buzzing will always occur just
before an incoming call and occasionally at random. I am assuming the random
occurrences are due to some data transfer from the cell tower to the phone.
I have heard from others that this is an artifact of GSM/GPRS phones.

Cheers
TC