Erroneous Speed Tests on Atrix - Atrix 4G General

Need your Help, I went into a AT&T store today, and got to play with a Sales Persons Personal Atrix, not a Demo. The Phone is very fast we downloaded Speed Test from Exreme Labs, I kid you not, "Blink" and it was done, I thought initially we had a disconnect, but not so. I have a concern, we ran Speed Test about 8 times and averaged 1.35 mbps Download and 1.38 mbps Upload??
How can that be? is it possible that there is a problem, I have also heard wide spread complaints of similar slow speeds.
I was curious to see, "could it be a set of "Bad Circumstances" One of the Other Sales Reps had a New IPhone4 and was kind enought to download Speed Test- We ran it, and had a Huge Difference- The IPhone was showing very fast speeds Download and so,so upload, via Extreme Labs Speed Test-
As I played with the Atrix, I went to different sites and dowloaded varied items, You Tube, Web Sites in the Middle East that are very labor intensive sites, Atrix FLEW through this stuff- The Atrix Raptor Fighter Jet Type Performance cast a big shadow of "Doubt as to whether the results were accurate", can anyone Help Please!
Thank you

I bet the sales rep had their Atrix on WiFi or they managed to get their phone updated/ provisioned properly to enable HSUPA.

can you explain your comments a little better, yes the phone was on wifi

The speed issues aren't about wifi speeds.
1. Pop that iPhone and the Atrix back on AT&T's network and run those speed tests again.
2. Watch the iPhone 4's upload speeds quadruple the Atrix.
3. Stare at the AT&T salesperson trying to sell you the phone and ask "Where the hell is your 4G now?"

sounds like the Atrix guy was using a relatively slow wifi connection and the iPhone guy might have been using 3G wireless
also, I've found my iphone 4 to be pretty susceptible to interference on the 2.4ghz band with wifi
Just ran a back to back with my atrix and iphone 4 on my home wifi. atrix on 5ghz and the iphone on 2.4ghz
atrix - 18169 Kbp/s down 8838 Kbp/s up
iphone 4 - 9814 Kbp/s down 2816 Kbp/s up
atrix over regular wireless 3232 Kbp/s down 336 Kbp/s up

Related

How fast is your G1

I got mine unlocked on the AT&T network, most likely EDGE because its only quadband.
But **** ebven on EDGE net it should be faster that 128kbs, That's my average and max speed so far from dslreports.com
jasond said:
I got mine unlocked on the AT&T network, most likely EDGE because its only quadband.
But **** ebven on EDGE net it should be faster that 128kbs, That's my average and max speed so far from dslreports.com
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900+ on 3g
jasond said:
But **** ebven on EDGE net it should be faster that 128kbs, That's my average and max speed so far from dslreports.com
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Click to collapse
128kbs is the same as 16KB/s so that's about right for EDGE.
I get 38kbs over here and that's on EDGE, your data is over 3x faster than mine. I don't feel bad for you lol.
Edge speeds are going to be all over the place. Yours is actually not bad. For example, my Edge speeds here in Atlanta (on the rare occasions that I don't have 3G) are really fast - so fast that I don't even notice the lack of 3G. When I go to my in-laws' in Ohio, I want to punch someone in the face because of the slow Edge speeds.
365 kbit/s
On Orange 3G network, capped at 384 kbit/s
I have gotten my G1 up to 100mph, I think it could easily handle 200mph+, but my car cannot. G1: 1; Car: 0
ive seen 450 as my highest download speed on g1
and pjforpres time for a new car
fastest I've gotten was 1800 kbps on 3g
I average 900+kbps on 3G. Fastest it reach so far was 1002kbps exactly, seems like it can reach higher but something might be hindering it. I wish I live in Philadelphia so I can experience 3000+kbps.
20 mbps WITH WIFI
100kbps with edge havnt tried 3g as yet
22" CHROME RIMS lol
CUSTOM LEATHER SEAT
nicostar said:
20 mbps WITH WIFI
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I thought this wasn't possible to achieve these speeds.
I have 12 mbps internet and I only get like 4 or 5mbps tops.
tazz9690 said:
I thought this wasn't possible to achieve these speeds.
I have 12 mbps internet and I only get like 4 or 5mbps tops.
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well we have a company out here called flow and they offer internet through optic fibre cables which can give rich people up to 100mbps its unbelievable
the normal connections are like 2, 4, 8, 10, 20, and 54mbps i believe.
its a company that provides landline cable tv(optic fibre) and HIGH speed internet
nicostar said:
well we have a company out here called flow and they offer internet through optic fibre cables which can give rich people up to 100mbps its unbelievable
the normal connections are like 2, 4, 8, 10, 20, and 54mbps i believe.
its a company that provides landline cable tv(optic fibre) and HIGH speed internet
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He wasn't talking about your ISP's speed, he was saying he didn't think the G1 could go that fast on WiFi, that it stalled out around 4-5...
Which is about what I get. I have a 20MBPS optic internet setup myself, and my G1 only gets 5MBPS over WiFi on a really good day. That is after testing many different speednet servers. (Chicago is the fastest, even though it isn't the closest to me).
I have also gone to websites and run the test using those, and still maxes out at about 5MBPS.
When I have done this with my laptop, I usually get 19.XMBPS...
Edge: 182 kbps down, 42 kbps up.
3g: 2112 kbps down, 412 kbps up.
Wifi: 5226 kbps down, 4885 kbps up. I have a 20/20 mbit connection.
pjcforpres said:
He wasn't talking about your ISP's speed, he was saying he didn't think the G1 could go that fast on WiFi, that it stalled out around 4-5...
Which is about what I get. I have a 20MBPS optic internet setup myself, and my G1 only gets 5MBPS over WiFi on a really good day. That is after testing many different speednet servers. (Chicago is the fastest, even though it isn't the closest to me).
I have also gone to websites and run the test using those, and still maxes out at about 5MBPS.
When I have done this with my laptop, I usually get 19.XMBPS...
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by joe your right lol thanks man lol
Mine reports 1711 kbps through my Telcel home WiFi setup.
Have a great afternoon!
Here in Chile (The G1 doesn't support the chilean 3G bands, so only EDGE) I get about 20~25kB/s when I'm capped and ~30kB/s when I'm not.
Regards!

My State of the Evo address

For starters i love this phones hardware. Almost all of the hardware specs of this phone are excellent. The 1ghz CPU by qualcom is a very good choice, but not quite a bleeding edge chip. Having a dedicated gpu would have been a better choice for the resolution and processing requirements of the other parts of the phone (gpu's can accelerate alot more than games).
512MB ram is a good choice and certainly enough for most needs. However ram is super duper cheap these days and i'd much rather have 1gb of good system ram than 1gb of extra storage space(which is what the evo gives us). the 4.3 inch screen is certainly sufficient, and in this space i dont think there really are much better panels resolution and aperture wise available.
I have certainly enjoyed playing with the 8MP camera in video and snapshot mode, but it also has its flaws. Being very sensitive to light the framerate (in video mode) can go from whats looks like(because i have no way of actually checking) lower 20's to less than 10 frames per second. Also while the 8MP sensor allows for nifty resolution it does not make for the cleanest image(in both video and snapshot mode). Due to lower quality optics being used and very little logic. I've found that flash also seems not to fire in correct sync with the (non mechanical IE FAKE)shutter of the camera sensor. Causing blurred images even with the flash on, I even attempted to circumvent this problem by manually setting the iso mode in the camera options to no avail. Also i really love the back facing camera and i would love it if i could actually use it for something.
I dont like fring its ugly and buggy, i dont like QIK. I dont know what it is, i just know i wont like it(J/K). It honestly never even occured to me that skype was not available for android yet (dont even mention that verizon peice of garbage). And it looks like we get it either until the end of the year. If even then (for video). I have had some opportunity to try out video on evo. And while some videos look good they are often not the right ratio and leave the screen largely empty. Some videos had obvious framerate & sound sync issues. Even on youtube. Let me go ahead and say i have not even played with HDMI, fm radio, or bluetooth. None of these do i really use, However i do like lots of extras and you cant go wrong with any of those. I tried only a few games out primarily raging thunder 2. I was not impressed by this games performance in the slightest. I would expect a 1ghz phone to be able to outperform atleast a Nintendo DS. I believe this part calls for a facepalm. I believe im supposed to thank HTC and their infinite wisdom for the 30FPS cap on the phone.
As for the 4G. I live in north dallas inbetween several major urban area in small residential housing area. Before signing up for my evo one quick trip to the sprint website and a little bit of address information would have me believe that im lit up like a christmas tree for miles all directions with 4G connectivity. Only after purchasing and bringing the phone home to realize i have no 4g connectivity at all do i back to the sprint website and go back to my coverage map. Yup see there i am all green, oh wait what is that? when i zoom in all the sudden the maps starts looking like swiss cheese. As i zoom all the way down my exact house do i see im not covered at all. Upon further testing i found that many areas that say they have 4G do not infact have 4G at all. After finding a 4G tower less than a mile away from my home. I drive to the tower to test my phones capability. Speedtest avarage download being 4300kbps or 430Kilobytes per second or about 4mbps. And upload averaging almost exactly 1000kbps or 100 Kilobytes per second or 1mbps. Well bellow the stated peak limit of 10mbps for downloads, and 1.8mbps peak of uploads. Mind you im sitting right beside this tower. I get much further from my home wifi. As i start driving, toward my house. I lose coverage in less than half a mile. Upon further consideration of this 4G technology i dont think its ever gonna work(right). I cant imagine them putting up enough towers to blanket a city yet alone suburbs or rural. There just is'nt enough real estate. I want to love this device, however this phone needs alot of love, and up against the onslaught on new phones just over the horizon, it needs it quick. Otherwise this could easily end up a dead end long before it ever reachs maturity. I have only owned my phone for 10 days. I will return it(if major upgrades dont happen soon) and go back to a peice of crap metroPCS phone for another six months while i wait for either this phone to get its act together or jump on one of the new LTE phones from the competition. Also i'd like to ask, what would you guys prefer a new single network connection combining all voice and data functions like the new LTE network verizon/metropcs is designing with possibly less bandwidth or a multiple network IE seperate voice and data connections with possibly more bandiwidth. Please consider all the known implications before replying. Lets keep this critiquing unbiased as possible please. If theres anything major please feel free to let me know.
And all i wanted was video conferencing.
Metathias
How did you locate the 4g tower closest to you?
notmike said:
How did you locate the 4g tower closest to you?
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I drove around till i got 4g signal Then meandered my way around following signal strength til i could see it. Never got full bars for 4g until i had line of sight. It was a big tower too. Still only covered about 1/2 to 3/4 of a mile.
4g upload is capped at 1mb
where is the map you can zoom on? can't seem to find it.
supdawg said:
4g upload is capped at 1mb
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Where does it say that? Mine is 1.3-1.6 normally
I can't believe I read...
that entire message. I must be off to wash my eyes!
Don't post stuff like this without an industry source. As far as I know, this is not true. I often get 1.7 in downtown Chicago.
supdawg said:
4g upload is capped at 1mb
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Sent from my PC36100 using XDA App
Read it.
GumboChief said:
Don't post stuff like this without an industry source. As far as I know, this is not true. I often get 1.7 in downtown Chicago.
Sent from my PC36100 using XDA App
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It's been mentioned by Sprint, Most Blog Sites, and Many other People. It has been shown on upload tests through SpeedTest, DSLReports, etc that its capped at 1MB or very close to it.
Please provide a screen shot of 1.7Mb/s upload as I have not seen that either and I have fast 4G where I live.
Here is from the developers site about cap.
http://developer.sprint.com/site/global/home/4g/wimax_experience/wimax_experience.jsp
Next time I am on Michigan & Randolph, I will run a test. I dont have it in my current log as I blanked my phone last week for whitslack rom.
mrmomoman said:
It's been mentioned by Sprint, Most Blog Sites, and Many other People. It has been shown on upload tests through SpeedTest, DSLReports, etc that its capped at 1MB or very close to it.
Please provide a screen shot of 1.7Mb/s upload as I have not seen that either and I have fast 4G where I live.
Here is from the developers site about cap.
http://developer.sprint.com/site/global/home/4g/wimax_experience/wimax_experience.jsp
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For those getting > 1mb, that may change in the future. I know 4G is capped at 1mb here.
supdawg said:
For those getting > 1mb, that may change in the future. I know 4G is capped at 1mb here.
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My speedtest was on June 17th, when going to see my eye doctor. I am really curious to check, now.
Sent from my PC36100 using XDA App

Vibrant keeps dropping N for G!

Okay this is a HUGE a huge disappointment to me. I have a Netgear b/g/n router and it seems to drop the N connection (where I get 3/4 bars) and return to the g connection (1/4 bars) and limits speeds to 5mbps. Please tell me I am not the only one with this problem and that it will be fixed. I know I've not heard this problem before...
P.s. I am sitting in the same room with my Xbox Slim and it maintains n the whole time, so no, I don't think its my router...
Wow. Almost 50 views and no comments. I wonder if it's just mine. Anyone know the exchange policy at Costco after 2 weeks?
Ive heard some wireless routers advertised as N can only really support one wireless N connection at a time.
Shouldn't have gotten a netgear router.
Droidicus said:
Okay this is a HUGE a huge disappointment to me. I have a Netgear b/g/n router and it seems to drop the N connection (where I get 3/4 bars) and return to the g connection (1/4 bars) and limits speeds to 5mbps. Please tell me I am not the only one with this problem and that it will be fixed. I know I've not heard this problem before...
P.s. I am sitting in the same room with my Xbox Slim and it maintains n the whole time, so no, I don't think its my router...
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Why do you need "N" to work? Do you have internet speeds that fast? Are you getting dsl or cable running at 300mbps? I mean thats the only logic for wanting N on your phone, to have the internet be that fast. You do realize, the internet wont be any faster just because it travels over N vs G. If your internet is 10mbps, its going to be 10mbps over both G and N.
Recently my friend insisted that her new router be N, even though it was more expensive. She insisted she wants the fastest router. Then I said "You know...your home DSL is only 1.5mbps...having G or N won't matter, it will travel at 1.5mbps on G or N either way, you can't even max out G yet"
So my question to you is, why do you need N speeds coming to your phone. Are you under the impression this will make your internet faster? Is your internet speed 300mbps? If your internet is standard DSL or cable, you haven't even reached the top G speeds yet.
Is this making any sense?
I mean unless you do file sharing, thats a different story, but what kind of massive file sharing would you do between your phone and the router? LOL phones don't even hold that much information.
So even if they come out with Z technology thats 1 million times faster than current N, if your home internet is still standard DSL, doesn't matter if you run G/N/Z or any other alphabet letter.
take care
I asked a similar question a while back. This was the answer I got and it proved to be accurate.
n9mtb said:
The Vibrant's wifi is, as far as I know, 2.4 GHz only, but a typical dual band router setup does b/g only on 2.4 and n only at 5.8. If you have the option to do b/g/n on the 2.4 GHz band it should work.
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SamsungGalaxySVibrant said:
Why do you need "N" to work? Do you have internet speeds that fast? Are you getting dsl or cable running at 300mbps? I mean thats the only logic for wanting N on your phone, to have the internet be that fast. You do realize, the internet wont be any faster just because it travels over N vs G. If your internet is 10mbps, its going to be 10mbps over both G and N.
Recently my friend insisted that her new router be N, even though it was more expensive. She insisted she wants the fastest router. Then I said "You know...your home DSL is only 1.5mbps...having G or N won't matter, it will travel at 1.5mbps on G or N either way, you can't even max out G yet"
So my question to you is, why do you need N speeds coming to your phone. Are you under the impression this will make your internet faster? Is your internet speed 300mbps? If your internet is standard DSL or cable, you haven't even reached the top G speeds yet.
Is this making any sense?
I mean unless you do file sharing, thats a different story, but what kind of massive file sharing would you do between your phone and the router? LOL phones don't even hold that much information.
So even if they come out with Z technology thats 1 million times faster than current N, if your home internet is still standard DSL, doesn't matter if you run G/N/Z or any other alphabet letter.
take care
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why have a car that can do 60 mph when the car that does 30 mph will get you where you're going, eventually. /s
vibrant + allshare + NAS = happy tunes anywhere in my house. N just gets my tunes to me faster/farther.
your car comparison sucked.
jamesd86 said:
why have a car that can do 60 mph when the car that does 30 mph will get you where you're going, eventually. /s
vibrant + allshare + NAS = happy tunes anywhere in my house. N just gets my tunes to me faster/farther.
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Your car analogy made no sense. If you have a ford focus that tops out 85 mph, and a ferarri that tops out 260mph. However, you are limited to driving around at 30 miles per hour, doesn't matter which car you drive. Since you are limited to 30mph, the focus and ferarri are going to get you from point A to point B at the same time.
Same **** with G versus N on your vibrant. N can handle higher speeds, but if you are LIMITED BY YOUR DSL OR CABLE SPEED, THEN both will run at the same speed, until you max out G. The only way to max out G is to have dsl or internet that runs faster than G is capable of.
Again, only benefit of running N on your phone is for massive file sharing really fast, but your phone doesn't even hold that much info, so that makes no sense. Or the other benefit is getting signal at greater distances. Chances are your router that is running g/n is going to provide just as power a signal to your phone running G or N.
SO AGAIN YOU WON'T NOTICE ANY DIFFERENCE RUNNING N OR G ON YOUR PHONE IF YOUR MAIN CONCERN IS INTERNET SPEEDS.
UGGGGGHHHHHHHHHHHHH
Lets see. First off, if you do any media streaming via wireless in your house, you want the higher speeds. Second, I like to vpn from my laptop to my computer (so I don't have to leave the couch). The difference in the smoothness when on an n network vs. a g network is very notable. Third... And probably most important in a setup like this.. A single g device connected to an n router will slow ALL the wireless devices on the network down to n speed, regardless of what they are communicating with. It is this very reason I have two separate access points. One to handle n traffic and one to handle b/g traffic. So unless he wants to allows his whole network down, he should probably try to stick with n.
Sent from my Vibrant using the XDA app.
Typos, incorrect words, gibberish, and other nonsense brought to you courtesy of Swype.
SamsungGalaxySVibrant said:
Your car analogy made no sense. If you have a ford focus that tops out 85 mph, and a ferarri that tops out 260mph. However, you are limited to driving around at 30 miles per hour, doesn't matter which car you drive. Since you are limited to 30mph, the focus and ferarri are going to get you from point A to point B at the same time.
Same **** with G versus N on your vibrant. N can handle higher speeds, but if you are LIMITED BY YOUR DSL OR CABLE SPEED, THEN both will run at the same speed, until you max out G. The only way to max out G is to have dsl or internet that runs faster than G is capable of.
Again, only benefit of running N on your phone is for massive file sharing really fast, but your phone doesn't even hold that much info, so that makes no sense. Or the other benefit is getting signal at greater distances. Chances are your router that is running g/n is going to provide just as power a signal to your phone running G or N.
SO AGAIN YOU WON'T NOTICE ANY DIFFERENCE RUNNING N OR G ON YOUR PHONE IF YOUR MAIN CONCERN IS INTERNET SPEEDS.
UGGGGGHHHHHHHHHHHHH
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my car analogy doesnt make sense because you either a. have no sense of sarcasm or b. (i think its this one) u took my analogy and completely f'ed it up.
btw, i'm on an N network and my browser on the phone really flies. might shoot down to g only and see if theres a difference or if the increase is because i'm coming from g1/mt3g.
edit: web browsing...not a huge difference, deff noticeable though. allshare on g only was not that good, took too long to start a song. I like my N! lol
People who say that you need a 300mbps connection at home to take advantage of Wireless N are just being silly. Not only is there better coverage with an N connection, but you will also have better speeds if you have a decently fast line (doesn't have to be over 54mbps even)-
I'm a Verizon FiOS user with a 25mbps symmetrical (same up and down) connection. The problem with many G routers is that although they say 54mbps its unlikely you're going to necessarily reach that under real conditions. For example the stock Verizon FiOS router actually limits my speeds a bit, to around 20mbps downstream. If you're trying to upload at the same time its going to be a little slower even. That's about all I can get, especially when further away from the router. However, with a new wireless N router which I've just recently installed, I can max out full 25mbps downstream, and even have the same going through upstream at the same time. The range of the signal is better, and it even seems as if latency is slightly lower (or there's less 'jitter' in general). Wireless N allows for much smoother connectivity, and I would highly recommend it to anyone with a decently fast broadband connection.
Now having said all of that, you may not care about ~20mbps vs 25mbps (speed difference for downloads in my case) on a phone, and that makes sense as it probably can't even render pages fast enough to take advantage of that. But still, wireless N makes sense to have in general.
Its your router. Force it to use only N.
I find it slightly humorous that I feel compelled to justify WHY I want to connect via N. In future posts I will remember to justify all of my needs/desires first, I.e although I have a navigation system on my Yukon Denali, I dint have it in my Infiniti, so I want the gps to work.
Like others have said before, its faster when streaming videos, it has a much farther and stronger signal (i have a large house) etc. As to why I don't just force it to use n only, genius!.... I have a Wii, PS3, older xbox360, 2 desktops and 3 laptops depending on g. Currently only 3 devices on n. I like to share media. Is that enough of an explanation?
As I swype this response, I can see the wi-fi bar go from 1 bar to 3. It seems schizo.
On Speedtest, when I have n it pegs out at 10mbps, I can tell when its on g because it seems to tap out at 5mbps every time.
Again I just thought I would see if others have experienced similar issues.
Lock on dang it! You know you want to! It's the stronger signal!
XfooYen said:
I asked a similar question a while back. This was the answer I got and it proved to be accurate.
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By the way, THIS very well might be the issue in my current configuration!
Thanks to all the productive responses!
My Vibrant doesnt do that.
I have a Trendnet router
If you still have the recipt they still be able to return it or at least change it?
I have come full circle my brothas! My wireless router has n on both 2.4Ghz and 5Ghz bands. Thus, I should be getting the n on my 2.4Ghz-only phone. Ah, but here is issue again! The reason, among few, that I bought the wireless a/b/g/n router in the first place was for the distance magnification inherent in wireless n. This, you see, is how I came upon the issue in the first place. 1 bar alone do I get with the b/g signal, but 3 bars pop up now and again for a short time making me believe that the phone cannot hold on to the n signal!
Alas, my 30 days with this phone are coming soon. I think I shall exchange it on the morrow...
Does anyone know how to see if the Vibrant is using N or G? I gather from the post you can check it doing a speed test, but the internet connection would be the bottleneck. I took am looking for N Wifi so that I can stream wirelessly.
Droidicus said:
Like others have said before, its faster when streaming videos, it has a much farther and stronger signal (i have a large house) etc. As to why I don't just force it to use n only, genius!.... I have a Wii, PS3, older xbox360, 2 desktops and 3 laptops depending on g. Currently only 3 devices on n. I like to share media. Is that enough of an explanation?
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My understanding is, If you have g devices active on your n network, your entire wireless network will be limited to g speeds. This may well be your culprit
Sent from my Vibrant using the XDA app.
Typos, incorrect words, gibberish, and other nonsense brought to you courtesy of Swype.
i agree with ConceptVBS. i had a similar problem with a netbook connecting at G speeds. i changed my network to N-only and now everything connects at full speed.
not sure the whole network would be slowed by one b/g device. i have a blackberry (for work) that connects at G, but my wife's desktop still connected at N speeds (270-300 Mbs).

Atrix Data Speed Vs iPhone 4 / LG Vortex

I know all Atrix users are having problems with slower data connections than using, say the iPhone 4. So I went ahead and did a quick video of, iPhone 4 and Verizon LG Vortex to show the speed difference. Clearly you can see that the Atrix is very slow in uploading, but overall was pretty close in download speeds with the iPhone 4. I have been averaging around 2.2 Mps down and .31 upload. Overall when using the Atrix phone to look up anything in the Market place or web browsing, and or using a app that requires data, it feels much faster overall. Could be that the Dual-Core is helping in this. My next video will be, comparing on the phone browsing and using data apps to compare.
Here is the link to the video: http://www.youtube.com/watch?v=yA72kfo856w
Ya shouldn't run both ATT phones at the same time.
zephxiii said:
Ya shouldn't run both ATT phones at the same time.
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Why its a fair real work comparison that way. No one is going to be the only one running a connection at any give time.
Sent from my Delorean using a flux capacitor!
compumasta said:
Why its a fair real work comparison that way. No one is going to be the only one running a connection at any give time.
Sent from my Delorean using a flux capacitor!
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If you are interested in testing the device's ultimate speed, you shouldn't be running the test at the same time right next to each other period. That causes channel interference (if on same carrier) which degrades performance, not to mention you are cutting available air interface resources in half in on the same channel/sector. That is not going to tell you jack **** about how the device performs (as far as above average potential) in comparison to another device on the same network...it only really shows how each device handles data in a crappy signal situation....interestingly ATT was better than VZW.
It has been demonstrated that the Atrix lacks HSUPA and will generally not perform as well as iPhone4 (or other HSUPA enabled device) until this problem is resolved.
zephxiii said:
If you are interested in testing the device's ultimate speed, you shouldn't be running the test at the same time right next to each other period. That causes channel interference (if on same carrier) which degrades performance, not to mention you are cutting available air interface resources in half in on the same channel/sector. That is not going to tell you jack **** about how the device performs (as far as above average potential) in comparison to another device on the same network...it only really shows how each device handles data in a crappy signal situation....interestingly ATT was better than VZW.
It has been demonstrated that the Atrix lacks HSUPA and will generally not perform as well as iPhone4 (or other HSUPA enabled device) until this problem is resolved.
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I think you misunderstood what he's saying. In the real world, you could be standing next to someone else using an AT&T phone, so that interference isn't unexpected. How the device handles that kind of interference is absolutely relevant information.
Ririal said:
I think you misunderstood what he's saying. In the real world, you could be standing next to someone else using an AT&T phone, so that interference isn't unexpected. How the device handles that kind of interference is absolutely relevant information.
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In the real world, he probably isn't running a speedtest right when you are.
It's still pointless as if you are trying to compare device speeds on the network, you need to give them ideal conditions....otherwise you aren't comparing the devices really. This is obvious because it isn't showing the Atrix's crippled network interface.
zephxiii said:
In the real world, he probably isn't running a speedtest right when you are.
It's still pointless as if you are trying to compare device speeds on the network, you need to give them ideal conditions....otherwise you aren't comparing the devices really. This is obvious because it isn't showing the Atrix's crippled network interface.
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I'm not even sure I understand what you're arguing. Someone next to you is not using a data connection if they're not running a speedtest? Because that's what it sounds like you're saying. The speed of the phone next to you is irrelevant. A phone pulling down 1000Mbps as opposed to 100Mbps won't magically decrease the surrounding signal. In modern devices, channel interference like that isn't really a problem anyway.
Ririal said:
I'm not even sure I understand what you're arguing. Someone next to you is not using a data connection if they're not running a speedtest? Because that's what it sounds like you're saying. The speed of the phone next to you is irrelevant. A phone pulling down 1000Mbps as opposed to 100Mbps won't magically decrease the surrounding signal. In modern devices, channel interference like that isn't really a problem anyway.
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Based on that statement, it looks like you really don't understand how WCDMA (or CDMA based) networks work. Channel noise, noise floor, neighboring interference etc. plays a huge part in network performance. So yes, even though signal receive strength may be very good, performance can suffer from channel noise...and I see it all the time in cell overlap areas (I live in one even).
And when you have two devices like that operating right next to each other using the same ARFCN, especially if one is in the upload portion of the test, it's going to create additional noise that the other device is going to have to fight through....then throw on top that both devices are fighting for whatever is left of free resources on the site..which is basically cutting whatever is left in half....if they are on the same sector/channel.
zephxiii said:
Based on that statement, it looks like you really don't understand how WCDMA (or CDMA based) networks work. Channel noise, noise floor, neighboring interference etc. plays a huge part in network performance. So yes, even though signal receive strength may be very good, performance can suffer from channel noise...and I see it all the time in cell overlap areas (I live in one even).
And when you have two devices like that operating right next to each other using the same ARFCN, especially if one is in the upload portion of the test, it's going to create additional noise that the other device is going to have to fight through....then throw on top that both devices are fighting for whatever is left of free resources on the site..which is basically cutting whatever is left in half....if they are on the same sector/channel.
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I understand the theory, I've just never seen it affect a device in practice to any noticeable degree. I might get 3.15 down with no other devices nearby, and 3.14 down with several others running at once (GSM and CDMA devices).
Living in an area with several carriers fighting for the airways can impact performance, but again, I've never seen a big enough difference to care. Maybe you've just been in areas with outdated hardware or poor filtering. This is all from personal experience, however, and I live in Chicagoland where there is no shortage of service from any carrier.
I know some have said that having all 3 devices and running the test can affect the performances when running data. I was hoping to try to run a test that could show what would happen if you were out and happen to be close to other smartphones that might be accessing data.
I will post another video showing how the data performance is, by running the speed test one at a time. I did try that today, and I can say that whether I had all three running at the same time or run speed test one at a time, the speeds didn't not change much; maybe only .04 difference. So having all three running the speed test would only affect around .04 to .06 difference in download speed.
I will also do a test to compare the speed to open browser and going to websites.
Also when I was doing the speed test today with my Atrix, I was using it as a mobile hot spot to provide internet to my Samsung Galaxy Tab, and the download speeds on the Atrix was very good. I got around 3.0 Mbps down and .29 Mbps upload; which is very slow compared to my iPhone 4. Hopefully soon this will be fixed.
So in real world situations if others around me are using their phones/data I shouldn't judge how my phone performs based on that? Individual testing is fantastic, but I'm rarely the only person in the room with an AT&T smartphone so it's not practical. Everyday use throughout the day (speedtest app or not) is the only real way to judge data performance in my book.
Besides, the speedtest app can go from 1.2 to 3.4 to .08mbps in 3 consecutive tests. It's all over the place.
For browsing the Atrix should open pages quicker because the processor will help out along with the network speeds.

[Q] Anyone else experiencing really bad data speeds after stock EC05->EI22 update?

I assume nobody else is having speed issues because I haven't seen any recent posts about this topic, but I went from 100% stock (including recovery, non-rooted, no extra apps installed) EC05 to EI22.
The first thing I noticed when I started to install applications was the 3G data was tremendously slower than it was before. Yes, I'm on Sprint. It wasn't great before, but it is *really* bad for me now.
I am currently getting:
4 out of 6 bars, -76dBm to -91dBm 0 asu
I do not know what the dBm/asu indicate, if those are "good" values or not. I've received acceptable data speeds at this location before.
I performed three speed tests using the Speed Test app:
ping 790ms, 693ms, and 982ms
download (bits, not bytes): 95kbps/0.09Mbps, 75kbps/0.07Mbps, 35kbps/0.03Mbps
upload (bits, not bytes): 93kbps/0.09Mbps, 127kbps/0.12Mbps, 138kbps/0.14Mbps
I am a bit reluctant to odin the modem back to EC05 with the modem NVRAM flash cleared and re-applying the EI22 patch, since I am not rooted I do not have the necessary numbers it appears I need to re-establish service from reading that forum thread.
Anyone else seeing a similar issue? Any suggestions for resolving it, other than the aforementioned NVRAM flash?
No noticable speed issues here....the towers that were broke before still don't work for data and the ones that do work..work the same.
Go to the data status in the ##DEBUG screen and make sure it says evdo and not 1x.
It's likely the tower. I get the same sort of thing downtown here but if I get out to another tower I pull just over 1 meg down. Hopefully Sprint gets all of their towers sorted out soon.
I compared mine on an Airave and they are comparable in speed.
Sent from my SPH-D700 using XDA App
Thanks, everyone.
I tried to search the forums for ##DEBUG to see how to do that, but wasn't able to find a post that explained it. One post I did find talked about turning on tethering mode and using a com port, but none of the ports I tried to open worked (I stopped at COM7). I will look into this more later on the great interweb.
I found some co-workers who have Sprint and androids, and when they ran Speed Test all also got abysmal results: one test returned a 2kbps (bits) download result. Yikes.
So, it seems to indeed be tower problem of some sort. After talking more with them, it appears to have really taken a nose dive the past couple weeks. The suspicious is the tower is saturated. Awhile back one of my coworkers called Sprint to complain, after going through several levels the most he got them to do was re-provision his phone which didn't help at all. So there's no acknowledgement of a problem or apparently any intention of fixing the issue. Maybe someday...
Anyhow, I appreciate your help and insights. Thanks again, everyone.
Same Issue Here!!
Insanely slow, all stock, formerly 1.0Mbps DLs before in same spot.
I have to throw my 2 cents in, used to get pretty good speeds and now, not sure if it is EI22 or something else, I get horrible speeds.
I sat in a car, parked in a lot across the street from the sprint tower, full bars, -65dBm, and ran a speed test... 483kbps download, 614kbps upload, 117ms ping.
I'm in a smallish town and can't imagine there is that much traffic on the tower...
Just to update, in another smallish town about 45 minutes away from the other one, sitting 5 bars about 1/4 mile away from tower and my speeds are even worse.
same problem here - speed test results are dismal
5 bars - tower within 1/2 mile away - ping 138 ms - d/l 439 kbps ul 443 kbps
phone samsung epic 4g
ERA Legendary 2.1 ROM
thanks
I've found that if I disable 100 MHz then I get a lot better data speeds. I'm on Legendary RC 2.1 with 2.0.8 of the Samurai kernel.
I also have this problem too, however if 3g is super importante, I would recommend CM7 the problem seems to go away too. Runs smoother too. I have 4g, and love it, so that is what I use when I am connected to a charger. 3g is getting pretty bad that I can't even stream music sometimes, just for the skips.
Saki18 said:
Insanely slow, all stock, formerly 1.0Mbps DLs before in same spot.
Click to expand...
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Installed ACS Recovery and Rooted, only thing different, drastic improvement in speed. Dunno why.
Here's what I used:
http://forum.xda-developers.com/showthread.php?t=1307980
http://forum.xda-developers.com/showthread.php?t=1339478
Slow speeds with a strong signal usually means that the tower is having issues. I have that problem on the main road (I live in the sticks) where there is only one tower, and a lot of users. In the middle of the night my speeds skyrocket, indicating network saturation during the day.
Sent from my SPH-D700 using xda premium
Ok another update. I had a friend with a galaxy tab at work today try a speed test and the same time as I did on my epic. We both got very similar results... which hopefully confirms that my phone is working fine, just sprints network is being saturated in my area. I'm going to go ahead and blame the number of people who probably picked up smart phones in the last few weeks. Seems like every day at work somebody has a new shinny toy to show off... to bad the network isn't able to support it.
I live in San Francisco, and I still get crappy speed. San Francisco's suppose to have the "fastest" 3G. I donno why though.
update from me.
sprint was down much of today
just came back - speed test report 1177 kbps down - 649 kbps up and ping of 163 ms - A dramatic improvement
did the 100 mhz mod also
but this seems to point to towers.

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