Anyone getting any static noise or interference on your computer speakers when using the phone? I get some funny noises from my computer speakers if im using the phone nearby or if its being charged through the usb. Is it just me or is my phone possessed?
Your speaker wires are unshielded. That is why you are hearing those noises. Happens quite frequently with cheap speaker sets that come with computers.
Sent from my SAMSUNG-SGH-I897 using XDA App
That makes sense, mental note... need new speakers.
i have good quality sony surround sound speakers and the same thing happens whenever my captivate (or any other phone i have had for that matter) receives or sends data over 3g (wifi seems to be find). this should only happen if your phone is less than a foot away though.
This can happen from across the room with poorly sheilded speakers. I have two alarm clocks you can't be in the same room with a phone. Car stereo is the same.
Sent from my SGH-I897 using XDA App
This can happen even with good shielding on your speaker wires. It has to do with the GSM band a freq. for some reason its VERY easy to pickup on most any speaker when the phone is polling the tower, may it be for a call,tower check,data or what have you. Also ive noticed this doesnt ever seem to happen with CDMA phones.
HaiKaiDo said:
This can happen even with good shielding on your speaker wires. It has to do with the GSM band a freq. for some reason its VERY easy to pickup on most any speaker when the phone is polling the tower, may it be for a call,tower check,data or what have you. Also ive noticed this doesnt ever seem to happen with CDMA phones.
Click to expand...
Click to collapse
Correct. In fact it's known as the "GSM Buzz". Google for more info. Will only happen if your phone is on EDGE and not 3G.
Couple of simple solutions:
- Move your device away from the speaker source making the buzz.
- Shield/insulate your speaker source. Google "gsm buzz ferrite beads".
- Force your phone to use only the 3G (UMTS) bands.
Related
Guys, this ain't an upgrade nor a hack issue. It is more important than all that. It is about health and how health friendly those devices are :!:
I have been hearing lots of issues about the radiation generated by either the GSM, BT or WiFi signals!
Is it true that it is not wise to carry the PPC next to the heart in the pocket or on the side pocket? Has there ever been an official report or research done on this and found it is not too friendly :?:
I know that this forum has got people from all over the globe. Therefore some of those countries might have researched and would have announced it, but mind you.. "Official Announcement
Please advise since it is a worry I've got :roll:
i've read more cases where study said that it was no problem that the other way around same thing with utms (3g)
but even if it were a problem that your hart would never be the troublesome place
your head and your testicles would be that place where it could cause issues
high watt transmision cause inc in celluar activities your hart is just a pump and need high volts expousre to react to anything like that
your brain are a pile of fat tissue where the neural transmitors and cemestry cause thinging and emotions celluar changing can be an issue there
and your semen aswell semen are preduced as a copy of the earlier produced so celluar changes which are high enough to mutate could be a problem
but cellphones are nowhere near as troublesome as highvolt lines and the wifi networks
only place you can 100% safe in in a big lead safe
Rudegar do you mean that GSM is more harmless than wifi? As far as I know the transmition power of GSM can go up as much as 2Watts in areas with low signal while wifi is only miliwatts!
wifi is always gsm is only when you make a call
i speak of wifi where you dont just use wifi at places where there are hotspots but you having a wifi network maybe some transcievers to str up the signal and such
and i also do believe that wifi is stronger then bluetooth which is just a few miliwatt dident check it though
Hello,
I'm no doctor but what I can tell you based on wireless emmissions is that if you use a bluetooth headset, and keep the device as far away from you as possible. The emmissions are reduced considerably.
A bluetooth headset has a range of 5 meters, whereas Wi-Fi or Cell Transmission are a hundred times that. Which makes me think that having a bluetooth headset near your ear, is a hundred times less strong than having a mobile phone, this gives me a peace of mind.
What is to keep in mind is that, especially during conversation. Not to leave the device inside your pocket plugged within your belt. This causes more problems as the testicles are more prone to damage than the brain is. Thus even when using the bluetooth headset. In effect its better to keep the device at a distance from your body.
Also note that using a mobile phone inside a car (especially new ones), is dangerous... Why? Because the car's shield acts as a mirror to the radio-waves. It reflects 10 to 20 times within the car, thus the radiation within the car is reflected and causing higher radiation within.. Solution? External antenna, I don`t have one, but when I use the mobile, I put it far away on the dashboard, close to the window to reflect the least radiation possible within the car. Please note that all PDA2Ks and PocketPC phones have a builtin slot to connect external antenna!
Well in fact you're right about the Lead Box.. But really, I believe that when I'm going to the beach, under the sun. Im not only getting a high dose of ultraviolet rays. Lieing down, my body is probably able to receive a 1200 channels from astra (some encrypted) and another 400 from Hotbird. Its also constantly receiving the Date and Time from GPS Satellites to calculate the location. On the other side when standing up, I'm probably getting 40 Terrestrial Channels and another 100 FM Channels. Apart from the Wi-Fi stations AND Cellular Antennas nearby.
the world is becoming clattered in radio communications. Its a must of our everyday life, the trick is to be aware of it and where possible to reduce it.
Small note about signal strenght :
The mobile's radio transmitting voltage is set according to the signal strenght.
In areas with low signal strenght, the voltage is incresed, thus increasing the radiation.
Regards,
Eman
Hello,
I'm no doctor but what I can tell you based on wireless emmissions is that if you use a bluetooth headset, and keep the device as far away from you as possible. The emmissions are reduced considerably.
A bluetooth headset has a range of 5 meters, whereas Wi-Fi or Cell Transmission are a hundred times that. Which makes me think that having a bluetooth headset near your ear, is a hundred times less strong than having a mobile phone, this gives me a peace of mind.
What is to keep in mind is that, especially during conversation. Not to leave the device inside your pocket plugged within your belt. This causes more problems as the testicles are more prone to damage than the brain is. Thus even when using the bluetooth headset. In effect its better to keep the device at a distance from your body.
Also note that using a mobile phone inside a car (especially new ones), is dangerous... Why? Because the car's shield acts as a mirror to the radio-waves. It reflects 10 to 20 times within the car, thus the radiation within the car is reflected and causing higher radiation within.. Solution? External antenna, I don`t have one, but when I use the mobile, I put it far away on the dashboard, close to the window to reflect the least radiation possible within the car. Please note that all PDA2Ks and PocketPC phones have a builtin slot to connect external antenna!
Well in fact you're right about the Lead Box.. But really, I believe that when I'm going to the beach, under the sun. Im not only getting a high dose of ultraviolet rays. Lieing down, my body is probably able to receive a 1200 channels from astra (some encrypted) and another 400 from Hotbird. Its also constantly receiving the Date and Time from GPS Satellites to calculate the location. On the other side when standing up, I'm probably getting 40 Terrestrial Channels and another 100 FM Channels. Apart from the Wi-Fi stations AND Cellular Antennas nearby.
the world is becoming clattered in radio communications. Its a must of our everyday life, the trick is to be aware of it and where possible to reduce it.
Small note about signal strenght :
The mobile's radio transmitting voltage is set according to the signal strenght.
In areas with low signal strenght, the voltage is incresed, thus increasing the radiation.
Regards,
Eman
Anybody else having this problem? If a plane gets into range--and no I don't live near an airport. Flight patterns causes them to come by sometimes. I get a radio frequency noise even if I turn off my wifi and turn down my speakers.
Any suggestions on how to prevent it from occurring? Not a major issue or deal breaker just want to know what I can modify to stop it from happening.
Thanks!
That's pretty wild. I live on an Air Force base and have never had any issues like that, even while using my tab in a hangar within 200 feet of operating aircraft. My guess would be that there is something nearby that is picking up those freqs, modifying them, and retransmitting them to interfere. Large metal objects of some kind? UFOs? Lol. If it only happens in one location building/room then move elsewhere to isolate.
do you happen to have your cellphone near your g-tab when this happens? What your picking up is the electromagnetic radiation from your phone receiving an increased amount of such. usually happens just before you will get a phone call or txt. sometimes happens when the phone updates with the tower. When unshielded speakers are near such sources of radiation especially within cell phone frequency and power the waves are powering the speakers themselves and the frequency produced from the speakers is within our range of hearing frequencies. I have heard this sound many times, you can try holding your phone close to the speakers and putting it on silent and listen for the sound as it probably you will hear it just before it notifies you of the call, and just before each ring should produce the sound. This will not work on shielded speakers though only unshielded which are found in most laptop speakers. let me know if this helps solve your mystery.
Here's a puzzler.
I recently started using my automotive GPS again (Garmin Nuvi 1450; same as the 1490) but I've noticed it's acting haywire whenever my Inspire is even close to it. For example, the accuracy becomes off by miles and it thinks the elevation is roughly 3000 feet when the elevation of the area I live is 150 feet above sea level.
Suspecting something, I powered off my Inspire and the Garmin immediately went back to being dead accurate so it has to be something with the Inspire.
I run my phone with WiFi and GPS disabled, I live in a HSUPA enabled area and my phone is set to use all available bands; it's generally in HSUPA mode. The rom I'm using is based off the Cyanogen nightlies, LorDmod kernel, 12.54.60.25U_26.09.04.11_M2 radio.
If anyone's experienced something similar or has any potential fixes that would be great. Putting my phone on airplane mode every time I get in my car isn't a very viable solution.
helushune said:
Here's a puzzler.
I recently started using my automotive GPS again (Garmin Nuvi 1450; same as the 1490) but I've noticed it's acting haywire whenever my Inspire is even close to it. For example, the accuracy becomes off by miles and it thinks the elevation is roughly 3000 feet when the elevation of the area I live is 150 feet above sea level.
Suspecting something, I powered off my Inspire and the Garmin immediately went back to being dead accurate so it has to be something with the Inspire.
I run my phone with WiFi and GPS disabled, I live in a HSUPA enabled area and my phone is set to use all available bands; it's generally in HSUPA mode. The rom I'm using is based off the Cyanogen nightlies, LorDmod kernel, 12.54.60.25U_26.09.04.11_M2 radio.
If anyone's experienced something similar or has any potential fixes that would be great. Putting my phone on airplane mode every time I get in my car isn't a very viable solution.
Click to expand...
Click to collapse
Have you tried Garmin Customer Support? It sounds like the problem is possibly with the Garmin, and not the Inspire. A stand alone GPS unit should be able to withstand interference form a cell phone, IMO...
meiguoguizi said:
Have you tried Garmin Customer Support? It sounds like the problem is possibly with the Garmin, and not the Inspire. A stand alone GPS unit should be able to withstand interference form a cell phone, IMO...
Click to expand...
Click to collapse
It doesn't happen when my brother's Thunderbolt or my old iPhone 4 is around it so I'm kind of confused. I haven't called up Garmin yet, just noticed it going haywire today, but I'll give that a shot.
helushune said:
It doesn't happen when my brother's Thunderbolt or my old iPhone 4 is around it so I'm kind of confused. I haven't called up Garmin yet, just noticed it going haywire today, but I'll give that a shot.
Click to expand...
Click to collapse
Yeah weird problem if only confined to the Inspire device. I have noticed for YEARS on AT&T with multiple handsets (including the iPhone) that something with the native signal interferes with the landline phones and some computers with stand alone speakers in the form of static and beeps that make it sound like I am trying to contact the Mother Ship...only at my employers cubes though...
helushune said:
It doesn't happen when my brother's Thunderbolt or my old iPhone 4 is around it so I'm kind of confused. I haven't called up Garmin yet, just noticed it going haywire today, but I'll give that a shot.
Click to expand...
Click to collapse
GPS frequencies are at approximately 1227 and 1575 MHz. The Inspire cell phone radio transmits in the 850, 900, 1800 or 1900 MHz bands depending on whether it's using EDGE, 3G, etc. So in theory it shouldn't interfere, unless some weird harmonic frequency situation is going on. You didn't say if you're using bluetooth, but these frequencies are in the 2400+ range (close to the WiFi range), so once again there should be no interference. It may be worth turning it off just to see (if you haven't tried this already).
Since the other 2 phones you mentioned don't cause the same problem, this does potentially point to your Inspire as the source. Maybe for some unknown reason your Inspire is poorly shielded (possibly due to some sort of defect during assembly) and is therefore spitting out more interference than it should. Or your radio is not running within spec due to some sort of hardware or software issue, and is spitting out spurious interference.
Personally I would try flashing the stock radio version 26.06.06.30. This is the stock radio that is FCC approved to run on the Inspire, and therefore has passed the FCC testing and certification for spurious signals, interference, etc. Get the version that comes with the RCData file, in the radio thread in the dev section.
One more thing to check: make sure the cell antenna (built into the inside cover of the SIM/SD cover at the bottom of the phone) is making good contact with the phone when the cover is on the phone. Look for the little gold contacts, and make sure they are clean and sticking up slightly with a "springy" tension to them, so as to make good contact. The reason I say to check this, is because if your antenna isn't connected 100% properly, the cell radio may increase its transmission power to compensate, which might also increase the interference it creates. This is pure conjecture.
What about Bluetooth?
Took too long. Just listen to Henry. He's a friggin genius. I think. He always seem to help me.
Sent from my Inspire 4G using the power of the dark side.
meiguoguizi said:
Yeah weird problem if only confined to the Inspire device. I have noticed for YEARS on AT&T with multiple handsets (including the iPhone) that something with the native signal interferes with the landline phones and some computers with stand alone speakers in the form of static and beeps that make it sound like I am trying to contact the Mother Ship...only at my employers cubes though...
Click to expand...
Click to collapse
Yar, that's the GSM signal interfering with electronics (usually cheap speakers) that aren't properly magnetically shielded against the GSM frequencies AT&T uses.
EDIT:
@biglittlegato - Good question, I always leave bluetooth disabled as well; I never use it. So much so I forgot this phone supported it. Heh.
@henrybravo - Cheers. I'll reflash back to 26.06.06.30 with the RID and see what happens.
EDIT2:
Also fired off an email to Garmin as well. Their response time window is 3 days so we'll see what they say as well.
The odd thing is that it was working fine when I drove to work this morning. Maybe it has something to do with the network load. Bleh, I'm just throwing stuff out there at this point.
helushune said:
Yar, that's the GSM signal interfering with electronics (usually cheap speakers) that aren't properly magnetically shielded against the GSM frequencies AT&T uses.
That all makes sense . Rather annoying when on the land line phone with someone at work though, or worse, we have an overhead paging system, and the beeps and static kick in when I'm on the overhead...just blame my employer's choice of inexpensive hardware and not fault my phones or cell service though .
Click to expand...
Click to collapse
meiguoguizi said:
Yeah weird problem if only confined to the Inspire device. I have noticed for YEARS on AT&T with multiple handsets (including the iPhone) that something with the native signal interferes with the landline phones and some computers with stand alone speakers in the form of static and beeps that make it sound like I am trying to contact the Mother Ship...only at my employers cubes though...
Click to expand...
Click to collapse
Haha I know EXACTLY what static/beeping sound you're talking about. My old Motorola prehistoric flip phone and maybe even my razr used to produce that sound whenever I was sitting at my computer, just before the incoming call would ring my phone. Annoying as hell.
Hasn't done it on my newer phones...Captivate and inspire.
Scott_S said:
Haha I know EXACTLY what static/beeping sound you're talking about. My old Motorola prehistoric flip phone and maybe even my razr used to produce that sound whenever I was sitting at my computer, just before the incoming call would ring my phone. Annoying as hell.
Hasn't done it on my newer phones...Captivate and inspire.
Click to expand...
Click to collapse
Yes the good ol' RAZR... when I had this old alarm clock that is never really off...would start the Home World transmissions 5 seconds before the phone would ring with an incoming call...I be drunk n think it was magic...well not really but sort of....
Sent from my Inspire 4G™ using XDA Premium App
Cheers for your guys' help in this matter. There were a few updates for the nuvi that Garmin sent me and I flashed the 26.06.06.30 radio and the issue seems to have dissipated. Still not sure what exactly fixed it or if it was just a GPS reading fluke but all is well now.
Hello,
Flying from London to Baltimore in a couple of weeks and looking forward to some quality gaming time with my xoom . Wanting to use my ps3 pad with sixaxis app but unsure what rules are regarding bluetooth during a flight. Had a google search and read mixed reports on using bluetooth. Any advice?
Just use it nothing is going to happen its all bull**** the plane is gonna have interference or and all have a safe journey mate cheers
Sent from my Xoom using Tapatalk
To be honest, radio frequencies do not interfere with aviation equipment outside of their operational range. It is the same concept as your phone, do you randomly pick up another persons call while you are talking on the phone.
We are bombarded with astronomical amounts of radio frequencies every day, the only thing that changes is how strong each one is. Phones, bluetooth, these devices can not physically put out enough power through their radios to cause a problem. Besides, bluetooth signals start to drop off by 20ft out usually, and most of the time cut out by 30. Bluetooth, and NFC are the weakest everyday radios in mass use.
I say go for it, and if they bring it up, just put it away, or argue that its infrared. That one has saved me once before.
Most airline policies say no to BT. In reality, that's silly. Many airlines now sell WiFi on some flights - and that's far stronger than BT.
I seem to recall seeing an FCC stamp on... oh, pretty much everything I own. Something about the device being tested not to cause any unwanted interference. Could just be my imagination, though.
Silly airlines.
Mythbuster actually did an episode on this topic and did find that Cell Signals can affect navigation but I forget what the power level was that made it happen.
BT should not be a problem with it's limited range and low power, and the truth is they only really care about it on Takeoff and landing where the instruments are the most important to the operation.
Hi guys I have a usb wifi reciever, and I want ti extend the range, I have a flat near my house with wifi and its about 400metres away, I wanted to know if some how I can extend the signal reception to pick up this wifi, the usb reciever has a small antena that can be taken of, could I attach coaxial or other kind of cable and attach it to my tv antenna or a satelite dish I have to pick up sky? Please aswer me, I think this is the right section, for me this question is a big thing because ive been without internet for 9 years know, I only have my phone! Thanks!
Sent from my Neo V using Xda Premium
An antenna is made for a specific wavelength, there is some physics behind it so you can't just put a big antenna and expect it to work. What you can do is extend the range of the emitter. You can do that either by getting a high gain antenna or a directional one.
I've also seen people receiving wifi from a distant router with a directional receiving antenna, but it has to be especially made for wifi, you can't use a tv one.
Also take in consideration interference. If there are lots of objects and other devices operating in the wifi signal range between you and the wifi router that signal is going to lose its quality so even if you'd get 100% signal, it might get jammed by all the interference.
wststreet said:
An antenna is made for a specific wavelength, there is some physics behind it so you can't just put a big antenna and expect it to work. What you can do is extend the range of the emitter. You can do that either by getting a high gain antenna or a directional one.
I've also seen people receiving wifi from a distant router with a directional receiving antenna, but it has to be especially made for wifi, you can't use a tv one.
Also take in consideration interference. If there are lots of objects and other devices operating in the wifi signal range between you and the wifi router that signal is going to lose its quality so even if you'd get 100% signal, it might get jammed by all the interference.
Click to expand...
Click to collapse
Thnks for the clarifications, ive seen this antena on ebay but dont know what the range is! Any idea?, what u said about directional recieving antenna, whats that? Could u please upload some pics? Thanks, I dont think interference will be a big problem because I live in a rural area! Thanks for your aswer!
Press thanks if I helped!
Sent from my Neo V using Xda Premium
That looks like a cheap antenna. I don't think anyone can tell for sure what you need to receive a signal from that far away. There are so many unknown things you need if you want to make the calculations.
The gain of the antenna is used to calculate how weak the signal can be and still be received.
Think of it as hearing a guy scream at a distance.. you can have an amplifier next to your ear, you might hear him if it's a directional amplifier but you will also hear everything that's between you and him. Although sound waves are different than electromagnetic waves, you can think of it like this to understand why the long distance is such a big problem.
wststreet said:
That looks like a cheap antenna. I don't think anyone can tell for sure what you need to receive a signal from that far away. There are so many unknown things you need if you want to make the calculations.
The gain of the antenna is used to calculate how weak the signal can be and still be received.
Think of it as hearing a guy scream at a distance.. you can have an amplifier next to your ear, you might hear him if it's a directional amplifier but you will also hear everything that's between you and him. Although sound waves are different than electromagnetic waves, you can think of it like this to understand why the long distance is such a big problem.
Click to expand...
Click to collapse
Thanks for taking time to aswer, the distance I was hoping to pick up is about 450 m no more! Will interference still be an issue?
Press thanks if I helped!
Sent from my Neo V using Xda Premium
mitchellreece said:
Thanks for taking time to aswer, the distance I was hoping to pick up is about 450 m no more! Will interference still be an issue?
Press thanks if I helped!
Sent from my Neo V using Xda Premium
Click to expand...
Click to collapse
Try this: http://www.freeantennas.com/projects/template2/index.html but I don't think this will work at that range.
If your usb wifi reciever have an external port for antenna, try to connect an axternel antenna to increase the range. This may work. Or you can buy a cheap wifi router to bridge with the one existing in the flat.
And YES, interference may be a problem!