Was allowed to pick out a gift for Christmas and found Sol Republic Amp Airs on sale for $75 CA which i felt were a major win!. I prefer earbuds over headphones and was so sick and tired of catching the cable on something that i purchased "Jaybird Freedoms". But these won't keep a good seal on the side with the battery/communication buttons dangling on the wire. Hence why i wanted to try "Truly Wireless Earbuds". And after 3 hours of use yesterday, what a relief - just awesome!. However, the way these work is - 1 bud communicates with the source (bluetooth) and then talks to the other bud i would imagine - "Through My Head". It's the latter that i'm concerned about There is a lot of "Respected Knowledge" on this forum and would very much appreciate any input you might have! FYI, i will be using these to commute to/from work (90 minutes each way) 3-4 days a week and also some light usage at home. Thank you
The amplitude of the Bluetooth radio waves traveling through your brain is way too small to worry about. You would probably need to have two or three in your ears 24/7/365 for years before it became a problem. You (all of us) probably get more RF radiation just standing in our homes and offices from cell towers, TV signals, wifi networks and everything else that is wireless these days. Truthfully, if you are driving with these, I would be more concerned with you not being able to hear a firetruck, ambulance or car horn. I note in some jurisdictions, driving with such devices in both ears is illegal.
I recently read an article about some children who did an experiment with a WiFi router and some watercress. The watercress by the router died. My own experience, I had been getting weird headaches in the back of my head near my neck for months, I would wake up in the morning with it and it would linger for hours. After reading that article I realised they started around the time I replaced my phone. I stopped putting my phone on my nightstand at night and guess what... no more headaches. I don't know how that is with Bluetooth but it is also a transmitter as well as a receiver.
I've looked online but haven't found anything concrete saying bluetooth is dangerous for you which is why i thought i would ask here. These will be used on public transit and not while driving.
No headaches but i started turning my cellphone off at night because i read you should if you live in a weak signal area which i do.
Weak signal area has nothing to do with it. The only real reason to turn off your cell phone at night is to avoid being disturbed by a phone call or text. Or to conserve the battery charge if you forgot to plug it in.
What i read stated a cellphone would emit more radiation trying to locate, lock onto and maintain a weak signal compared to a strong signal. Whether this is correct or not i have no idea.
I'm concerned somewhat less about this now and enjoyed another 3 hours being completely "Wire Free" yesterday!
Nah! You are talking apples and oranges. Remember a cell phone is a "transceiver". That is, it has a separate transmitter and receiver. Transmitters don't lock onto anything. They just transmit and because cell phones user "omnidirectional" antennas, they transmit in all directions. This means any RF radiation directed at your head when sitting on your nightstand is but a tiny percentage of the total transmitting power being emitted. "Directional" antennas focus the total transmitted power in one direction (like microwave communication towers) but because cell phone users are mobile, cell phones must use omnidirectional antennas. The receiver receives RF signals and it is the receiver that locks onto a signal. While transmitters may work with watts, receivers work with microwatts and single digit (like 3mW) values at that. Once the receiver locks onto a signal (from the closest cell tower), it is not going to let go unless a much stronger signal comes along (like when moving from one cell tower to the next). Then the call is handed off to the next tower. Now cell phones do periodically "ping" the towers after so much time of inactivity. But truthfully, it is typically once every 8 hours. This 8 hour timer is reset and starts over every time you make or get a phone call or text, or search the web using your cell service. So odds are, your cell phone will only transmit a very short (a couple millisecond) signal ("ping") once or twice throughout your sleep time. If you are really worried about RF radiation cooking your brain but still need access to your cell phone when sleeping, put it 10 feet across the room - not next to your head.
I would advice everyone to stay away from this stuff. At work, I have used a wireless/Bluetooth headset for one year, and since then my health problems started, I got weird headaches. I'm convinced that if I kept working over there I would already be dead. At home I also refuse to use WIFI and Bluetooth. I do believe some people like myself are more vulnerable to health problems caused by radiation. But I wouldn't be surprised that 20 years from now a lot of people will eventually get sick.
Yes that is absolutely right, cellphones constantly vary their power output. They are designed to use the lowest possible output necessary for communications. It works in two ways, if the cell tower receives a weak signal it tells your phone, your signal is weak, increase power. If the cellphone is not receiving a response from the cell tower at all, it increases its power output incrementally and keeps sending out its signal until it does. Dead zones are the worst for draining your battery, the phone is using full power constantly to try and get a cell tower response. You can mitigate that by putting your phone in airplane mode if you know you will be in a dead zone for some time.
The point is, once the cell phone locks in on a specific tower, it is not going to keep looking for a different tower even if a weak signal, unless the signal drops out and loses lock. And that is not typical unless you are moving distances. You are talking about putting the cell phone on a nightstand or table (you are not moving around town from tower to tower) and leaving it there. So the cell phone is not going to keep searching at full power once it has a lock. That just wastes battery and you could not have days of standby time which is common. The battery would run out in hours. At most, a cell phone's output power is just 2 watts and it typically is much less than that - normally less than 100 milliwatts - and that's when talking! And again, the transmitter is going through a omni-directional antenna. It is not burning a narrow beam full power signal through your head. Even just a few feet from your head greatly reduces the amount of radiation you are receiving compared to when you are talking on the cell with it up to your ear. Also, this very much depends on where you are. If you are out in the boonies, there may only be one tower in your area. This may require the cell to transmit at a higher power. If you live in a densely populated urban area, there may be several to many towers within easy reception distance. This will allow the cell phone to operate at much lower transmitting power. Lastly, because the tower equipment is not limited to the small size, low cost, tiny battery power of the cell phone, they put very sensitive, high quality receivers in those towers, designed to pick up very tiny (single digit microwatt) signals. These receivers are also very capable of filtering noise and amplifying signals too. Airplane mode does no good if you need your phone at night to receive calls. Seriously, if worried about RF radiation while sleeping, put the phone on a table across the room. Myself, I have no qualms putting it on the nightstand next to my bed. FWIW, I was an air traffic control radio technician for 24 years in the Air Force.
The comment I responded to was not whether a cellphone searches for other towers when it is already receiving responses from one or not (Although that is what it does.) It was whether or not the cellphone increases its power output when it is in a weak signal area and the answer is yes that is exactly what it does. The cell network is designed that multiple towers receive pings from the phone so the phone constantly sends out pings whether it has one tower responding or not. It does this so all the towers that receive the signal from the phone can decide which one is receiving the best signal and that tower then handles any communication. So the cellphone does not "lock onto a tower" the tower locks onto the phone, if you want to call it that. The phone will receive from whichever tower transmits to it. This is how the phone stays connected as you travel around and also how the phones location can be triangulated. The towers pass control of communication to the next tower as you get further away from one and closer to another. The phone has no way of knowing that you plan to remain in a static location because you are sleeping so sends out "here I am, please respond" pings continuously, regardless. So, for those reasons, if only one tower is responding because you are in a remote location the phone increases its power output in an attempt to contact other towers at the same time. Regardless of all that I made it clear in my comment about my headaches, that is just my opinion based on the fact I am not a headache person, meaning I have rarely had them and when I did it was usually alcohol hangover related and the headaches I started getting soon after replacing my cellphone were strange, unlike any headaches I had before in my life in that they occurred in the back of my head and to the top of my neck and I would wake up with that, almost on a daily basis, sometimes during the night. My old phone was 3G and had 4 bars at my house, the new phone, 4G, which for some reason has a much weaker signal at the house, only 1 bar. The headaches stopped the very day I quit putting my phone on my nightstand and have not since returned. That could all be freak coincidences but I doubt that enough that I won't be putting cellphones on my nightstand any more.
The funny thing is that I didn't even read your reply, and we used the exact same wording: "weird headaches" LOL. Seriously, people who say that there is no risk with stuff like Bluetooth and wireless devices, don't know what's up. What do you think about DECT phones? I was forced to buy one because nowadays it's all about VOIP, another retarded move, there was nothing wrong with landlines. But I did buy a triple DECT handset from Siemens Gigaset which supposedly only sends data when you're on the phone. So that should help to minimize the radiation.
Since they have been around for almost 30 years, and the latest standard, DECT-6 over 10 years ago, I am going to assume if there were problems, they would have manifested by now. And you do? Science works on evidence. And we have lots of it. RF has been running through our heads and bodies in great abundance for over 100 years. Since the beginning of time if you count naturally occurring radiation (of which there is a lot!). But there is no evidence whatsoever radiation from electronics at the levels we receive does any harm. Does that mean you can stand in front of a RADAR or microwave tower, or grab hold of a TV broadcasting antenna? Of course not. People need to stop with the unnecessary paranoia or I am going to have to invest in tin futures again and start selling tin-foil hats. Those same people better never fly on a plane or climb a high mountain. Never get an X-Ray and especially never get a CT-Scan even though some people get a CT scan every year and they are not glowing or growing a 3rd arm. And for sure, the paranoid better never eat any bananas since 1/day/year is worse than 7 dental x-rays. So stay out the produce department at your grocery stores. Have the public safety departments in all 196 countries in the world - friend and foe alike - agreed to conspire together to fool their citizens? Are all the 1000s and 1000s of universities around the world involved in this cover up? Here's an informative chart to ponder: Radiation Dose Chart
https://www.forbes.com/sites/brucel...nings-about-cellphones-what-you-need-to-know/ State of California public health department just now released new safety guidelines on the use of cellphones. "long-term, high use of cell phones may be linked to certain types of cancer and other health effects" Including Brain, acoustic nerve, and salivary glands tumors Lower or less active sperm Headaches Behavior, learning, or memory problems Sleep disturbances https://constitution.com/latest-cell-phone-health-warnings-california-shocking/ “Dr. Joel Moskowitz at UC Berkeley said, ‘Currently we’re not doing a good job in regulating radiation from these devices. In fact, we’re doing an abysmal job." Dr Karen Smith with the California Dept of Public Health said, "When you sleep, you keep the cellphone at least arm’s length away from your body. And also, not carrying your cellphone in your pocket, having it either in your purse or not carrying it with you." http://www.dailymail.co.uk/news/art...ed-burying-warnings-handsets-small-print.html "Mobile phone firms have been accused of concealing warnings about the health risks of using their handsets. A warning that Apple’s popular iPhone should be kept at least 15mm away from the body is buried deep inside the manual. BlackBerry goes even further, saying customers should use their devices hands-free or keep them an inch from the body ‘including the abdomen of pregnant women and the lower abdomen of teenagers’. Again, this advice is hidden in the instruction booklet."
Good information but I note this thread is really about Bluetooth headphones, not cell phones. I am not trying to minimize the impact of RF, but as noted in that California report, "Wireless (Bluetooth) and wired headsets emit much less RF energy than cell phones." As I said above, when sleeping, put the phone across the room, not next to your head.
