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hi there,
i just bought g1 with tmobile in chicago,il so far i am getting just a little over 50KBites/sec download on 3g network. i am coming from htc fuze with att. anyone else see any problem in here??
Do you have full signal? If you brought the phone from T-Mobile you could always ask them what the problem is.
just find out something interesting ...
if you turn on airplane mode and then shut it off you data speed boooom to 235-175 KB/sec which is like a 3Mb/sec dsl speed at home !!! but after a little while it goes back to normal 50. looks like tmobile is throting the bandwidht
non resolved.
Hey People, this is a non resolved issue, the last note posted in not accurate. I have been noticing my internet speeds are about half of what they used to be. have been doing many FCC app speed tests and they are half of what I was getting about 2 months ago. Back then I was constantly clocking in 1.0 to 1.5 Mbps and now all over the board, but best one was at 843, and am regularly in the 400 to 200 range.
This has also been confirmed via the Speed Test app also, getting basically the same number.
Just for confirmation sake, when tethering, i would go to 2Wire.com and run speed check on my laptop, would get the same numbers as the two apps are getting, 1 to 1.5 mbps a couple of months ago, and now in the 400 to 200 range.
Currently have G1 and have been bouncing ROMs, but right now running cyan 5.0.7 test 3, radio is 2.22.23.2, recovery is RA's 1.6.2 and danger spl. Currently living in Denver, CO.
First, let be smart here and not bash the sites or apps used, but the consistancy of their usage and their results. It does reflect that my speeds are half of what they used to be.
Also another note, the download and upload speed are very close to being the same, within a range of 100 kbps. Now we all know that even on cell phones, that should not be the case.
And I start the posting after having tried the airplaine thing, tried to even reboot, went into adv. task manager, shut off all apps, and services and combinations of such with no significant gain in speeds.
Anyone still experienceing the slowed internet speed.
+1
I have been experiencing about the same thing pretty much following the same time frame. Currently living in the DC metro area so I should be experiencing HSPA speeds.
Its a problem with Cyanogen v5.0.7.
That's the reason I'm still using donut.
4G drains my battery like mad; I can easily last a whole day + more on 3G/Wifi, but 4G practically kills my battery in a matter of hours?
OP, is there a point to having Ferraris and Hummers? I mean, they all drink fuel like a drunk drinking booze! I mean, I can easily last for the whole 3 weeks using a Civic or a Prius but Ferraris and Hummers basically kill my fuel tank in like a couple of days?
jerryparid said:
4G drains my battery like mad; I can easily last a whole day + more on 3G/Wifi, but 4G practically kills my battery in a matter of hours?
Click to expand...
Click to collapse
I think the real point of 4G is to use the phone as a hotspot for your laptop WHILE tethered to some power source, whether it's an AC outlet or the USB port of the laptop.
Even with the large battery drain, I still see 4G as useful if you're looking to download a lot of data quickly to the phone intermittently. You just have to be careful about turning on/off 4G as needed for those downloads. If 4G were available in my area, I'd be turning it on as I left the office to download updated podcasts for my ride home, then turning it off once the downloads were complete.
good point PoisonWolf.
I have been using 4G when watching the World Cup live on Sprint TV. So much smoother and better quality image over 4G.
I leave my phone plugged in when doing that though. I did a test once and it lasted almost 2 hours watching TV over 4G (very intensive and battery draining activity)
4G is nice to have for those times you need a speed boost.
I'm agreeing with the situational use. I've actually been really impressed with Sprint's 3G service. I'd have gotten this phone even without 4G.
I really on turn it on when im tethering
Properly managed, you should turn off anything you are not using. Especially 4G.
halorin said:
I'm agreeing with the situational use. I've actually been really impressed with Sprint's 3G service. I'd have gotten this phone even without 4G.
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Click to collapse
I am not at all impressed with Sprint's 3G. I'm currently averaging 0.5mb/s download speeds on my EVO via 3G. This is both near my home, and near my office, which are far enough apart that they're not using the same tower. (edit: I'm in the suburbs of Los Angeles - San Fernando Valley.)
There's nothing wrong with the phone, as I did manage a 1.2mb/s test on Friday evening. Maybe this suggests that there's just too much congestion during the day? Though at 5:30 AM this morning I was only pulling 0.6mb/s.
For comparison, side-by-side tests with my other devices gave these results:
Sprint EVO = 0.5mb/s
AT&T iPhone 4 = 1.6mb/s
TMobile Nexus One = 2.5mb/s
There's a whole thread on here someplace about how slow people all over the country are getting with 3G from Sprint. It's very disappointing, and I'm considering canceling my service over this. Paying $10/mo extra for 4G, when I don't get 4G or even acceptable 3G speeds just doesn't sit right.
I used to have a Sprint datacard for my old MacBook Pro, and Sprint rocked. Faster than AT&T on average with about 1.6mb/s as I recall, but I gave it up a year ago when I got a new MacBook Pro that doesn't have the datacard slot. Based on my experience with Sprint datacard, I had no reservations about getting the EVO even though there's no 4G in my area, but unless they fix this issue quickly, I'm history. I wonder if I could get Verizon to let me use the EVO on their network.
To get back on topic - 3G speeds aside, if you can actually get 4G service with the EVO, and can use it responsibly, the EVO must really rock your mobile data world. I got the Seidio extended battery for mine, and it does add a noticeable amount of battery life to the phone, so if you're a heavy 4G user and aren't hooked to a power supply, it might be a wise investment.
distortedloop said:
I am not at all impressed with Sprint's 3G. I'm currently averaging 0.5mb/s download speeds on my EVO via 3G. This is both near my home, and near my office, which are far enough apart that they're not using the same tower. (edit: I'm in the suburbs of Los Angeles - San Fernando Valley.)
There's nothing wrong with the phone, as I did manage a 1.2mb/s test on Friday evening. Maybe this suggests that there's just too much congestion during the day? Though at 5:30 AM this morning I was only pulling 0.6mb/s.
For comparison, side-by-side tests with my other devices gave these results:
Sprint EVO = 0.5mb/s
AT&T iPhone 4 = 1.6mb/s
TMobile Nexus One = 2.5mb/s
Click to expand...
Click to collapse
That's funny...because I live and work all around the San Fernando Valley as well. From Balboa near the 118 and 405 all the way to Calabasas near the 101; and I get 100-200 kilobytes per second on average... ? Never slow for me.. and consistant 150kb/s seem pretty damn good to me.
I hope we get our 4G coverage soon. :/
distortedloop said:
I think the real point of 4G is to use the phone as a hotspot for your laptop WHILE tethered to some power source, whether it's an AC outlet or the USB port of the laptop.
Click to expand...
Click to collapse
damn, that's gonna take one long power cord for my evo to reach to the end of my street, at the intersection with no trees. and at that point, i'm pretty sure i'd need another extra long power cord for my laptop as well.
i really wanted to use 4G as a cable internet replacement, but since i can't even get a connection outside of my house, muchtheless inside my house, i guess it doesn't matter that i'm in a "covered area".
I live outside of DC, and I routinely get over 2000kbps using the speed test app on 3g with a latency around 90. With 4g, I've gotten 4900kbps outside my house with 1 bar.
healthpellets said:
damn, that's gonna take one long power cord for my evo to reach to the end of my street, at the intersection with no trees. and at that point, i'm pretty sure i'd need another extra long power cord for my laptop as well.
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Click to collapse
Don't be ridiculous. "I'd need a long extension cord." LOL. How droll.
If you're at home or in the office, you have an AC outlet for both your laptop and your phone.
If you're in the car you have the DC outlet (ever hear of a car adapter/charger) for your phone - and if you need it, get an inverter for the car to get laptop AC out of the cigarette lighter.
If you're in Starbucks or the like, use the USB cable to tether the EVO to laptop. A modern laptop should be able to power both the EVO and itself for at least a couple of hours. If you're away from an AC or alternate power source for more than couple of hours, you're just gonna have to live without 4G. Big deal, get over it, or get a different device like perhaps Sprints MiFi or whatever they call it on their network.
distortedloop said:
Don't be ridiculous. "I'd need a long extension cord." LOL. How droll.
If you're at home or in the office, you have an AC outlet for both your laptop and your phone.
If you're in the car you have the DC outlet (ever hear of a car adapter/charger) for your phone - and if you need it, get an inverter for the car to get laptop AC out of the cigarette lighter.
If you're in Starbucks or the like, use the USB cable to tether the EVO to laptop. A modern laptop should be able to power both the EVO and itself for at least a couple of hours. If you're away from an AC or alternate power source for more than couple of hours, you're just gonna have to live without 4G. Big deal, get over it, or get a different device like perhaps Sprints MiFi or whatever they call it on their network.
Click to expand...
Click to collapse
the point is, i spend 75% of my time at home or in my office (located, conveniently or not) in the same structure. and i have no 4G service in my home or outside in my yard, even though Sprint swears i have coverage. but like i said, i can get 4G at the end of my street at the intersection where there are no trees.
kyelerner said:
That's funny...because I live and work all around the San Fernando Valley as well. From Balboa near the 118 and 405 all the way to Calabasas near the 101; and I get 100-200 kilobytes per second on average... ? Never slow for me.. and consistant 150kb/s seem pretty damn good to me.
I hope we get our 4G coverage soon. :/
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Click to collapse
Actually, those are EXACTLY the areas I'm talking about. Along the 118 out to Porter Ranch, and the 405 as far south as Sherman Way (Van Nuys Airport).
Also, did you make a typo with your speeds? 100kb/s is pretty damn slow, so is 150kb/s. I'm guessing you mean 1000 and 1500 kb/s, aka 1.0 and 1.5mb/s. I was reporting in mb/s as the app I'm running defaults to them.
Those are common speeds for me on AT&T and TMobile (higher actually, usually 1400 - 2000 kb/s), with Sprint EVO, since I started testing last week, only a couple of times over 1000kb/s, and almost always just in the 400-600 range. Pretty unacceptable when a different networks device right next to it is pulling 2-4x the speed at the same time.
Maybe we should hook up someplace and compare the two phones side-by-side to see if we get similar results. ;-)
healthpellets said:
the point is, i spend 75% of my time at home or in my office (located, conveniently or not) in the same structure. and i have no 4G service in my home or outside in my yard, even though Sprint swears i have coverage. but like i said, i can get 4G at the end of my street at the intersection where there are no trees.
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Click to collapse
Ah, okay, fair enough, but that wasn't clear from your post, and it wasn't addressing the issue I was in the post you quoted.
Your issue is that you can't get 4G at all where you're at (regardless of Sprint's map), whereas I was pointing out that, as the OP of the thread said, 4G eats battery life like there's no tomorrow. Unless you're tethered to an AC or DC power source for your EVO, you just need to be intelligent about when and how often you use the 4G service, since it clearly eats battery life rapidly.
I turned on 4G to see if there was a signal where I was at the other day and forgot to turn it off. Two hours later my unused phone was down to <50% battery charge. With the 4G radio off, I can go a full day and then some without a recharge with my normal use - which is pretty amazing compared to the other iPhones and Android phones I've used.
WiMax is going to be a frustrating thing for many until it's fully built out, sadly, especially with Sprint using it as a selling point on one of the best phones on the market right now. :-(
distortedloop said:
Actually, those are EXACTLY the areas I'm talking about. Along the 118 out to Porter Ranch, and the 405 as far south as Sherman Way (Van Nuys Airport).
Also, did you make a typo with your speeds? 100kb/s is pretty damn slow, so is 150kb/s. I'm guessing you mean 1000 and 1500 kb/s, aka 1.0 and 1.5mb/s. I was reporting in mb/s as the app I'm running defaults to them.
Those are common speeds for me on AT&T and TMobile (higher actually, usually 1400 - 2000 kb/s), with Sprint EVO, since I started testing last week, only a couple of times over 1000kb/s, and almost always just in the 400-600 range. Pretty unacceptable when a different networks device right next to it is pulling 2-4x the speed at the same time.
Maybe we should hook up someplace and compare the two phones side-by-side to see if we get similar results. ;-)
Click to expand...
Click to collapse
I get 100-200 kilobytes per SECOND. That's very normal for a 3G connection on any network? Correct me if I'm wrong. My buddies usually get around 70-120 kilobytes per second on their networks...AT&T and Verizon when we compare. They are usually jealous of my speeds [;
If you test results give you .5 megbits per second, then youre getting 62.5 kilobytes per second.
I think you have your data screwed up... .
The term mb/s means megabytes per second. (kb/s is kilobytes per second)
The term "mbps" refers to megabits per second. (kbps is kilobits per second)
You divide you're mega/kilobits per second by 8 to get your mega/kilobytes per second.
So if I'm getting about 150 kilobytes per second, then my speed would be 150x8= 1.2mbps....which definetely ain't bad on a 3G connection...
4G is nice, yes it does drain a lot of power but that doesn't bother me.
when i'm out and about 3G is powerful enough for my phone, i get good speeds on sprints 3G to be fine on the phone. When I tether i'd want more speed, so I turn on 4G but then it drains my battery. Magical solution, i'm tethering so i'll just plug my phone in to charge on my laptop, now i get 4G without the power drain, WOW!
kyelerner said:
I get 100-200 kilobytes per SECOND. That's very normal for a 3G connection on any network? Correct me if I'm wrong. My buddies usually get around 70-120 kilobytes per second on their networks...AT&T and Verizon when we compare. They are usually jealous of my speeds [;
If you test results give you .5 megbits per second, then youre getting 62.5 kilobytes per second.
I think you have your data screwed up... .
The term mb/s means megabytes per second. (kb/s is kilobytes per second)
The term "mbps" refers to megabits per second. (kbps is kilobits per second)
You divide you're mega/kilobits per second by 8 to get your mega/kilobytes per second.
So if I'm getting about 150 kilobytes per second, then my speed would be 150x8= 1.2mbps....which definetely ain't bad on a 3G connection...
Click to expand...
Click to collapse
Not that many people use Megabytes and Kilobytes for network transfer speeds they use Kilobits and Megabits for identifying network transfer speeds.
kyelerner said:
I get 100-200 kilobytes per SECOND. That's very normal for a 3G connection on any network? Correct me if I'm wrong. My buddies usually get around 70-120 kilobytes per second on their networks...AT&T and Verizon when we compare. They are usually jealous of my speeds [;
If you test results give you .5 megbits per second, then youre getting 62.5 kilobytes per second.
I think you have your data screwed up... .
The term mb/s means megabytes per second. (kb/s is kilobytes per second)
The term "mbps" refers to megabits per second. (kbps is kilobits per second)
You divide you're mega/kilobits per second by 8 to get your mega/kilobytes per second.
So if I'm getting about 150 kilobytes per second, then my speed would be 150x8= 1.2mbps....which definetely ain't bad on a 3G connection...
Click to expand...
Click to collapse
Okay, I'll correct you, since you're wrong. At least in terms of correcting my use of kb/s and mb/s.
I'm not sure how you're getting your speeds. Are you downloading files and timing them by hand, then doing the math to get the speed? Your results may be accurate, but your terms are incorrect.
All I do is use either Speedtest.net or Xtreme labs Speedtest apps, or hit one of the various speedtest websites. I'm just reporting the numbers that are displayed in the applications and websites I am using to check my speed.
Since I am just parroting the numbers off the tools I use, if I am doing it wrong, then the various speedtest apps and websites are as well. I doubt they're all doing it wrong after all these years.
It's always been my understanding that BITS are expressed with a small case b and BYTES are expressed with a large case B - a kb is kilobit, and kB is a kiloByte. Traditionally, also, if it's a "k" its 1000 (decimal) and if it's a "K" its 1028 (binary).
Also, there is no difference between the terms kbits/sec, kb/s, and kbps in terms of data rate transfers. They are all interchangeable. In this context, the "ps" is the same as "/s" - both are read as "per second". The small "k" stands for 1000 in decimal and the small "b" stands for "bits" as in a binary 1 or 0 (1/8th of a byte).
My understandings of all the above seem to be confirmed by Wikipedia's use of the terms in the same manner as I am: http://en.wikipedia.org/wiki/Data_rate_units#Kilobit_per_second
which explains the following:
Kilobit per second
A kilobit per second (kbit/s or kb/s or kbps) is a unit of data transfer rate equal to:
1,000 bits per second or
125 bytes per second.
and further in the article at http://en.wikipedia.org/wiki/Data_rate_units#Kilobyte_per_second
Kilobyte per second
A kilobyte per second (kB/s or kBps) is a unit of data transfer rate equal to:
8,000 bits per second, or
1,000 bytes per second, or
8 kilobits per second.
Anyways, I think you confused me when you used the terms kilobytes per second and kb/s interchangeably and stated you thought 150kb/s was great for 3G service in this post:
kyelerner said:
...and I get 100-200 kilobytes per second on average... ? Never slow for me.. and consistant 150kb/s seem pretty damn good to me./
Click to expand...
Click to collapse
and I focused on the 150kb/s part, which trust me, is not good for 3G, it's more like EDGE.
kyelerner said:
So if I'm getting about 150 kilobytes per second, then my speed would be 150x8= 1.2mbps....which definetely ain't bad on a 3G connection...
Click to expand...
Click to collapse
I think we're really hijacking the original thread here and getting way off topic, and it might be better to move to another thread for future responses re: 3G speeds, such as this one: http://forum.xda-developers.com/showthread.php?t=707751&page=3 , but while I won't argue that 1.2mb/s isn't bad, it's not that stellar for a modern 3G network, either.
I routinely get 1.4 to 1.9mb/s on AT&T iPhones, and 1.8 to 2.2mb/s on T-Mobile Nexus One here in the San Fernando Valley...and I got comparable speeds to that on my EVDO datacard from Sprint before I canceled it last year. 1.2mb/s in the big city here is the minimum I would allow as acceptable performance, I know that Sprint has done much better in the past, and that the competition is doing much better in the present.
FYI - Since you mentioned speeds along the 118/405 earlier, I tested after getting off the 118 at Woodley Avenue from the 118 Fwy all the way down to Sherman Way this morning, I did speedtests at every other major intersection. The results:
Devonshire = 1534kb/s, Lassen = 696kb/s, Nordhoff = 941kb/s, Roscoe = 457kb/s, Sherman Way = 806kb/s. I didn't dual test the whole way, but at Sherman Way the iPhone 4 pulled 1871kb/s. In my office just now it's averaging LESS than 300kb/s. There is definitely something wrong with Sprint's 3G in this area.
Back on topic:
If they'd hurry their butts up and get 4G to Los Angeles and the valley, I wouldn't give a rat's a$$ what 3G was like. I bought the EVO for two reasons - the large screen, and the gamble that 4G would be in LA pretty quickly and that I could live with 3G until it got here. I can't live with 3G if it's 400kb/s - I might as well go back to tethering my old Motorola Razr for that kind of speed!
I wish I had the problem that the original poster did: the ability to wonder if 4G is worth the battery life it costs you!
hi guys, is anyone messing about with these yet, just been flicking through the sections and didnt come across a thread for these models, just wondered why, any help appreciated!
i dont think they've sold as many as the gen 8's. simply because the releases were so close to eachother.
Close to each other?
1 year is not close.
The reason might be that the devs still are waiting for the real version, the 1.5GHz OMAP4460 before buying one.
me too
i wait !!!!!!!!!!
Not a bad idea either way... Can someone lQQk into it?
y but mainly i dont wait for the CPU power but for (hopefully) some usefull memory setup (1GB) and not the same crap they did to the Gen8 series.
Really they build such a nice device but the only thing preventing it form being AWSOME is the low memory...
What is the average data transfer rate of the WiFi radio in the Gen 9 tablets?
I'm curious if it is the same Bull Sh_t max 54 meg/sec rate in the Gen 8's, which just barely allowed Archos to label it as having 801.11n capability.
i have all gen9 with 1ghz
if you have questions !
I got the 80 G9 yesterday. Looks good. Zippy. But I see there is at least a second lag between pressing the power button and the lock screen coming on. and today morning, I think (after a night's rest), it went into a SOD. I had to hold down power screen for a reboot. Anyone else?
Had mine for over a month now...
I like it a lot. It's a lot snappier than the Gen8 models. Archos did increase the memory by 50% but didn't go to 1GB unfortunately; still, it works very well at 768MB.
I got mine on September 27th and I've been using it daily ever since. Works very well. The only negatives I have to say about it is that they haven't released the 3G stick for the US yet and it does sometimes lockup and require a reboot. Archos has released three updates since I got mine. The tablet froze on me twice the first weekend I had it; keep in mind that I was really using it hard during this time, adding apps and music and such. After I finalized my initial setup, it became more stable. I received an update the first week I had it, if memory serves, and afterward it was very stable. Then I received a second update a week or so ago and afterward, it started locking up periodically again. I downloaded the latest update last night and I'm hoping it corrects the locking up issue but nothing was said about that in the change logs. Even so, it might lock up once or twice a week and is easy and quick to reset; so, it hasn't been a major issue for me yet. I'd still like to see them stabilize the device though.
Regards,
Jack
Hi Jack,
I've just received one and it has the ripple just in front of the full size USB port when you press on the back. Have you seen this problem or heard anything definite about the fix/repair for this issue?
Thanks
Are you referring to something you see on the screen, like a pressure point as if the screen is being squeezed? If so, I have seen that on mine from time to time but haven't been concerned about it. If I had to guess, I would say that they packed a little to much hardware in the case at that point.
Is that the battery of A80 G9 is as much as the A70IT? I search on google and everything is culculated by using hour but not mA.
I don't really know if it's the same battery or not. If I had to guess, I would say it's more likely the same one that was in their 101 model from last year (or similar) because the screen on the A80 is quite a bit larger than the A70 and brighter too. But I just don't know. For all I know, it could be a completely new battery. I do know that the battery life on the tablet is very good. I mostly use mine for reading ebooks, internet browsing and e-mail and I normally get a couple of days out of it before charging and even then, it's usually at the 30 - 50% level when I plug it up. I have no complaints about the battery to date.
So how many percent that the battery drains per hour when u r brownsing via wifi or reading book? The A70IT's battery is 3850mA and it is not enough for me. But the A80 is running Android 3.0 so I think It will drain more battery than A70 running Android 2.2 does.
I have the A70 too; used that up until the A80 came out. I never really had trouble with the A70 running out of power on me but it seems to me that the A70 does drain faster than the A80. I haven't really monitored it in any scientific way. If it were giving me problems I would but it works well so I haven't bothered. I read on it more than I browse and I'll read anywhere from a few minutes, an hour or sometimes two or more hours at a time. And it seems to drain pretty slowly to me.
I also use it for testing mobile solutions at work and sometimes have it on for an hour or more at a time while running tests. I can't give you any sort of accurate number but it does do well on battery. If you've used an iPad any, I would estimate that it is comparable to the iPad for active battery use. I don't know about idle because mine is never idle more than a few hours at a time while my iPad is sometimes idle for days at a time. I suspect, that on idle, it wouldn't compare as well to the iPad because for some reason, Archos likes to leave that power LED burning all the time.
Anyway, when compared to the A70, in my usage, the A80 seems to do better on battery use. I used to have to charge my A70 every night but like I said ealier, I only charge my A80 about every other day and if anything, I use it a little more than I did the A70.
---------- Post added at 12:17 PM ---------- Previous post was at 12:13 PM ----------
Oh by the way, I used to leave the Wi-Fi turned off on my A70 to conserve battery; just turned it on when I needed it. I don't do that on the A80 and it still does better.
Thank 4 ur information. I've tested A80 at a retail store and a surprising thing was that the back of the A80 began to get hotter after 5 minutes watching youtube and began extremely hot after ~10 minutes. I dont know that device had any technical problem or not but my A70 was hot if I brownsed or watched youtube for more than half an hour. I think when the A80's chip is getting hot, It will drain more battery.
And one more thing, is the soft keyboard of A80 sensitive or not? I cant test it because the salesman was not happy when I had a device test. My A70 got a problem that after I have a long press on the screen, It will take 1s delay to press another key. For example, when Im gonna type [email protected] on my A70 soft keyboard, the screen just only appears [email protected] (letter "g" is disappeared). I make a long press on letter "A" to type "@" instead of use "alt". Is it normal or not?
Hello all,
I have galaxy S4 i9505. If I have the phone near me for about an hour+ (not talking, or using it just having it standby next to me), I think my head and my ears are buzzing. I am not having any headaches (yet) but something is happening.
Could it be a faulty device that can give me such problems? Anyway to check it myself?(ex. service menu where I can see the output power etc)
Thank you
Do you turn green when you get angry?.
Sent from my iPhone using Tapatalk
theunderling said:
Do you turn green when you get angry?.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Funny, this is good one, really good one, XD
OP, obviously you are worrying too much, it's kinda like "placebo effect" , only this time it's on negative side
Depending on which frequency band the phone is using I would not want it near my head for over 1 hour...
OK lets put this into perspective, a microwave oven uses microwave radio frequencies at approximately 2400 megahertz which means the wave length is about 10cm most microwaves operate on a transmit frequency power of between 800 and 1200 watts + or -.
Look at what it can do to food, it can take frozen food -12 degrees C to cooked in 5 minutes.
A mobile phone can operate at upto 1900 megahertz, however the power levels are much reduced, I don't know what the exact power levels of modern phones are I'm sure they are no more than 600-900 milli watts.
Old phones as in anologue phones operated on 500 megahertz (older) and 800 mhz (newer) I know some of these used upwards of 1-2 watts at maximum power output.
As a long time radio operator, CB radio and HAM radio, I know that the higher the radio frequency the more dangerous it is to be exposed to it. I have operated radios at upto 500 megahertz with a power rating of about 40 watts, and after a short period of tuning, aligning and setting up I started feeling really sick(headache nausea hot and tingly).
I also know someone who used to be a radio technician who went blind in one eye and lost over 50% sight in the other eye after fixing and testing a radio amplifier for 500 megahertz, the power rating was in the order of 300+ watts.
There is a lot of debate in the scientific community about what is and what is not dangerous and I personally believe that they will never admit to anyone the true dangers of radio frequency, especially now that probably 80% of the planet owns a mobile phone. Imagine the consequences if they admitted that mobile phones were actually harmful?
In conclusion:
Using a mobile phone for 1 hour + continuous IMHO IS dangerous especially of it is operating on the 1800 megahertz gsm band.
I know our 4G service in Australian Vodafone is supposed to be 850 megahertz which is a bit safer but I still don't fancy the idea of being on it for extended period of time.
Sent from my GT-I9505 using xda app-developers app
Maybe it's a placebo, but the point I want to make is if a faulty phone can cause such a problem and how can I check if that's the case
One thing that has always bothered me is how quickly (relatively) the battery drains on any android phone i've had in the past 6 years when typing. I can read articles, scroll webpages and whatnot for hours...but if I'm having a heavy day of instant messaging, my battery drains much faster. This makes sense due to way that this phone and most android phones ship with the ondemand governor. Just to test, and you can try this too, in better battery stats or some other app that can monitor CPU speeds, set a custom reference and then type for one minute in a note keeping app or an instant messaging app. Then go back and check. What you'll find is that the CPU frequency stays at max 80% of the time or more, because the screen is being touched the entire time. So to me, that is horribly inefficient.
I went ahead and bought an iPhone 6s to try to see if iOS handles typing better, and it does. I can get about 6-7 minutes of nonstop typing before the battery drops 1%, whereas on mine it can be anywhere from a minute and half to 3 minutes tops.
I want to see if I can clamp down on this so I found this post but it's very specific to the Nexus 5x: http://forum.xda-developers.com/nexus-5x/general/guide-advanced-interactive-governor-t3269557/page51
What do you guys think? I'm not nearly well versed in this kind of stuff so I need some help. Let me know!
I agree, it's a very crude and inefficient way of doing it. Android is designed for maximum fluidity so they assume that every time you touch the screen the cpu will be put under load, thus the cpu ramps of the frequency - this is commonly known as touchboost. If you have a custom kernel like dorimanx you can modify it to lower the touchboost frequency and various settings so it could potentially lower battery usage during input. Although I don't know if it's worth it considering all of the various potential problems that go along with such a kernel..
iOS and android are so fundamentally different that I doubt you can (easily)modify it to perform like ios in a given workload. However, each manufacturer has their own flavor of android so they may be optimized differently. Either try several different models or just go with an iphone since you've tried it and seemed to like it - or you could always wait for android n which will hopefully be more clever and efficient..
you could try intellimn this stays at lower freq, when more power its needed it boots to higher frequencies. that along with allucard hotplug. should save battery this is with dorimanx kernel.
with ondemand its the same. or if you want more lower use smartassv2
I returned the iPhone. The fact that it doesn't repeat notifications for missed calls is abhorrent to me. I need to be able to glance at my phone and know that I've missed a call with the screen lighting up every few seconds or a LED light.
So I'm definitely sticking with the G2 for now.
If I install another kernel to give me more governor options, how difficult is it to put back the stock AT&T lollipop kernel? Can I back it up first in any way?
ksc6000 said:
I returned the iPhone. The fact that it doesn't repeat notifications for missed calls is abhorrent to me. I need to be able to glance at my phone and know that I've missed a call with the screen lighting up every few seconds or a LED light.
So I'm definitely sticking with the G2 for now.
If I install another kernel to give me more governor options, how difficult is it to put back the stock AT&T lollipop kernel? Can I back it up first in any way?
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Yes you could either use twrp and back up boot. or use flashify from playstore to back up stock kernel.
ksc6000 said:
One thing that has always bothered me is how quickly (relatively) the battery drains on any android phone i've had in the past 6 years when typing. I can read articles, scroll webpages and whatnot for hours...but if I'm having a heavy day of instant messaging, my battery drains much faster. This makes sense due to way that this phone and most android phones ship with the ondemand governor. Just to test, and you can try this too, in better battery stats or some other app that can monitor CPU speeds, set a custom reference and then type for one minute in a note keeping app or an instant messaging app. Then go back and check. What you'll find is that the CPU frequency stays at max 80% of the time or more, because the screen is being touched the entire time. So to me, that is horribly inefficient.
I went ahead and bought an iPhone 6s to try to see if iOS handles typing better, and it does. I can get about 6-7 minutes of nonstop typing before the battery drops 1%, whereas on mine it can be anywhere from a minute and half to 3 minutes tops.
I want to see if I can clamp down on this so I found this post but it's very specific to the Nexus 5x: http://forum.xda-developers.com/nexus-5x/general/guide-advanced-interactive-governor-t3269557/page51
What do you guys think? I'm not nearly well versed in this kind of stuff so I need some help. Let me know!
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Click to collapse
So this is not a scientific test at all, but I usually will use whatsapp for messaging nonstop during my 1 hour lunch at work. No browsing or anything else is usually included in that. I have a few conversations going so I'm typing and getting messages non stop. Previously that would decrease the battery by 22% or so. Now by switching my governor to interactive and making tweaks to it using EX Kernel Manager, with this it's down to 14%. I will admit there is some minor stutter when first turning on the screen with the settings I'm using so I'm sure I need to keep tweaking but my main concern is the battery life while typing.
Previously as I mentioned if I'm typing, the CPU speed would go up to max and stay there until I'm done typing for a few seconds. Now with these tweaks my CPU speed barely goes up above 960 MHz...most of the time it's between 640 or 883. I think that's the reason I'm getting 4 to 4.3 minutes of screen time now while typing instead of getting anywhere between 1 and 1/2 minute or 3 at best while typing.
ksc6000 said:
So this is not a scientific test at all, but I usually will use whatsapp for messaging nonstop during my 1 hour lunch at work. No browsing or anything else is usually included in that. I have a few conversations going so I'm typing and getting messages non stop. Previously that would decrease the battery by 22% or so. Now by switching my governor to interactive and making tweaks to it using EX Kernel Manager, with this it's down to 14%. I will admit there is some minor stutter when first turning on the screen with the settings I'm using so I'm sure I need to keep tweaking but my main concern is the battery life while typing.
Previously as I mentioned if I'm typing, the CPU speed would go up to max and stay there until I'm done typing for a few seconds. Now with these tweaks my CPU speed barely goes up above 960 MHz...most of the time it's between 640 or 883. I think that's the reason I'm getting 4 to 4.3 minutes of screen time now while typing instead of getting anywhere between 1 and 1/2 minute or 3 at best while typing.
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Click to collapse
if you use smartassv2 its lower.