Does anyone know what's the HSDPA for AT&T in US? Is it 850/1900? - Networking

Does anyone know what's the HSDPA for AT&T in US? Is it 850/1900?

I know that At&t is not 850 as people from the rest of the world who buy iphones 3g in usa can use them on 3g in their countries and only america use 3g on 850

HSDPA is 850/1900 for AT&T. Look at the specs for some of the 3G phones on their website, they should all say 850/1900 UMTS

This is what it looks like to various HTC mfg phones....in Ca.
on my ATT 8525(att wm6.0 rom)= 3G:850, HSDPA:1900
No matter which network is being used 3G is what is displayed
On my X1i only HSDPA: 1900 this connects only in the major metropolitan area! in Ca. I live in a small commuter community so, HSDPA is about 15 mile out of range north or south of me....But we do have 3G: 850(what att uses in their fringe areas) so no joy for my X1i

scl_electronics said:
This is what it looks like to various HTC mfg phones....in Ca.
on my ATT 8525(att wm6.0 rom)= 3G:850, HSDPA:1900
No matter which network is being used 3G is what is displayed
Click to expand...
Click to collapse
Download Advanced Configuration Tool (search) and you can turn on HSPDA and the icon. I've read some people had trouble with the setting sticking; however I've had good luck with the stock ATT Rom and latest 1.12.25.19 (I think) radio. Didn't do any speed tests to actually see if it made a difference other than anecdotal evidence.

Related

High speed on cingular with X1i

Hi Everyone,
I got my X1i on Tuesday. It's obviously a UK import, but so was my TyTN II and it worked great. When I got everything set up, I couldn't get more than 200kbps on dslreports. I put the sim card back in my TyTN II and retested, and got 1.2Mbps.
If I turn off HSDPA/HSUPA the data rate drops to 30kbps. I've played with every combination of data and voice bands and can't get the same performance as the TyTN. I do notice that my X1 never shows the H icon in the status bar like my other phone to indicate high speed (HSDPA).
The bands are exactly the same with a minor addition.
GSM: 900+1800 UMTS: 2100 + 800
GSM: 1900 + 850 UMTS: 1900 + 850
UMTS: 2100 + 800
AT&T seems to run on the middle one.
Does anyone have any thoughts on what could be holding my back? Same SIM, same data plan, etc.
Thanks very much in advance!!!
Hi,
Where do you live? Could be you only have UMTS 850 coverage... But, could also be something else..
dbond45 said:
Hi,
Where do you live? Could be you only have UMTS 850 coverage... But, could also be something else..
Click to expand...
Click to collapse
I live near Reno, NV. The wierd thing is I literally power down, move the sim to my TyTN II and bingo! I get incredible speeds. Short of getting into the registry I have gone through and confirmed all the GPRS and HSDPA settings are exactly the same.
I think what dbond45 was saying is that you might be in an area that uses 850 band which isn't actually on the x1i. The tytn II on the other hand has the 850 band from what i understand so that might be why ur getting great speeds with ur tytn II.
Bxsteez said:
I think what dbond45 was saying is that you might be in an area that uses 850 band which isn't actually on the x1i. The tytn II on the other hand has the 850 band from what i understand so that might be why ur getting great speeds with ur tytn II.
Click to expand...
Click to collapse
Ah, so you're thinking that even though it says it supports 1900+850 in the control panel, the 850 band may be disabled in the radio? I'm pretty technical, but would have no idea how to test that. Any ideas?
By the way, thanks for talking this through with me. I hope it's benefitting others too.
Yes from what i've read all over the place that the 850 radio is disabled. I know that even though the software says u can enable those bands it doesn't actually mean u can. I have the touch pro and it has all of the different bands in the settings and we all know no one can get 3G in the US. So it looks like that is what ur running into. I've read on howard forums at some point a way to test to see if u are working on the 850 band but i don't remember how they did it.
Bxsteez,
The program is fieldtest.exe, and you can find it under windows in your file explorer on the X1, once in WIndows, scroll down to fieldtest.exe and run, although I'm not sure what all the values me..
There is a dispute as to whether the X1i has UMTS 850 (see pocketnow.com post, but, IMHO, I don't think it does, although I wished it did)
Lemme do some research and see if I can find what band Reno is running on. It's very likely it's 850 3G since a) it's a newer market, and b) it's a rural area compared to large cities which use 1900 mhz UMTS...
From what i was reading on howard forums Canada only uses UMTS 850 and the people who have the x1i are reporting only edge speeds.
Indeed you all were right about the discussions on Howard Forums. Read through a lot of them. Thanks for the pointer to fieldtest.exe. I'm digging through it now. I'm hopeful that S/E just threw a software switch in their stack for 850Mhz so the X1i wouldn't carp any of Cingular's sales on the upcoming X1a. Hopeful and maybe a little naive.
X1 on AT&T
I had a similar instance yesterday, sent the X1 back. The same 3 choices for UMTS in WM Phone settings, I selected the 850/1900 bands. I got the H but it was slow. Moved my SIM back to the BlackJack II and worked just fine.
I think the ROM or WM6.1 Stamp they are using is incorrect.
The Xperia Box, on the white label shows UMTS EU1 US3 EU4 I believe which to me would mean 900/1900/2100 I am not positive about the last EU being 3 or 4 since I have mailed the phone already. There are a lot of listings on ebay which show UMTS 850/1900/2100 which I truly believe is incorrect and are being used from a Feb 08 page on gsm arena. Expansys USA told me they had both flavors, then the next day all you see on the US site is the 900/1900/2100.
The US ver is not released ( X1a) from what I read here and everywhere else.
dbond45 said:
Bxsteez,
There is a dispute as to whether the X1i has UMTS 850 (see pocketnow.com post, but, IMHO, I don't think it does, although I wished it did)
Lemme do some research and see if I can find what band Reno is running on. It's very likely it's 850 3G since a) it's a newer market, and b) it's a rural area compared to large cities which use 1900 mhz UMTS...
Click to expand...
Click to collapse
1. There is no dispute. Only dumb people. the X1i DOES NOT have 850mhz UMTS band, the hardware isn't even in the phone. It falsely displayed 850+1900MHZ because it does 1900MHZ and WM assumes that if it has 1900 it must have 850. It doesn't..
2. Reno does in fact run a predominately 850mhz 3G networking using At&t (not cingular, its been over a year since they got bought out) Your speed is likely because of this. Oddly if your phone is set to auto negotiate networks it should pick up EDGE service and show a "G" does it display a G rather than an H? You said the H doesn't display when you force 850+1900 UMTS right? The question is what does come up? Signal strength etc.?
If you import a phone from the UK you need to be prepared to be disappointed with speeds, simple fact, most UK phones don't even support 1900mhz, its there for roaming purposes on the X1. Same reason the X1a will have 850/1900/2100 UMTS. 1900mhz band is the weaker of the 2 used by At&t... 1900mhz was the first frequency they used, they used it so save costs and setup a marginally OK 3G network on a larger area. 1900mhz being a higher frequency means it can travel further than 850, this results in slower speeds and poor reception depending on your location from the nearest tower. 850 is lower frequency and there for more dense, this translates into faster speeds and better reception. Most new areas of at&ts 3G network are spread around with 850mhz. Older markets are a combination of 850mhz/1900mhz and some just 1900mhz.
The point is, if you are blissfully unaware of all this then your best bet is to send the phone back and wait for the US release.
mlinz said:
...
1900mhz band is the weaker of the 2 used by At&t... 1900mhz was the first frequency they used, they used it so save costs and setup a marginally OK 3G network on a larger area. 1900mhz being a higher frequency means it can travel further than 850, this results in slower speeds and poor reception depending on your location from the nearest tower. 850 is lower frequency and there for more dense, this translates into faster speeds and better reception. Most new areas of at&ts 3G network are spread around with 850mhz. Older markets are a combination of 850mhz/1900mhz and some just 1900mhz.
...
Click to expand...
Click to collapse
FYI: The data transmission speed doesn't depend on frequency. Both 850 and 1900 bands are capable to provide the same speed.
mlinz said:
1. There is no dispute. Only dumb people. the X1i DOES NOT have 850mhz UMTS band, the hardware isn't even in the phone. It falsely displayed 850+1900MHZ because it does 1900MHZ and WM assumes that if it has 1900 it must have 850. It doesn't..QUOTE]
Actually, I along with many others are fully aware the X1i does not have 850 UMTS listed on the box, in the specs, etc. I even made a post about it. HOWEVER, there is a VERY SLIGHT chance it does, and SE never mentioned it in the specs for some unknown reason. If you go to pocketnow.com, Brandon CONFIRMS he spoke to 3 SE reps from the X1 support line who said the X1i had 850 UMTS support. Only 1 said it only had 900/1900/2100 UMTS as listed on the box. 3/4 reps saying it has 850 UMTS, along with the fact he supposedly only gets 850 UMTS where he lives, and is getting HSDPA on the X1i leaves a glimmer of hope for everyone out there, even if it is dismally small.
As far as the "false display" 850/1900 mhz option it is not so much a false display as a software option on most HTC phones, including the euro touch pro...
Anyways, I'm getting decent HSDPA coverage in Chicago...
Click to expand...
Click to collapse
joedoe said:
FYI: The data transmission speed doesn't depend on frequency. Both 850 and 1900 bands are capable to provide the same speed.
Click to expand...
Click to collapse
They may output the same speed initially, but 1900 you usually get less bars depending on your location to the tower and less bars means slower speeds.
mlinz said:
...
1900mhz being a higher frequency means it can travel further than 850
...
Click to expand...
Click to collapse
You got this backwards. Think AM and FM. AM can be picked up much farther away.
veloaudio said:
You got this backwards. Think AM and FM. AM can be picked up much farther away.
Click to expand...
Click to collapse
My bad, I do that a lot

US 3G Bands?

I have a GSM Touch Diamond and there's no way to use the US 3G even if you have a 3G sim, we discussed it in the Diamond forum and people said it's just not possible. Is this the case with the Blackstone or are you able to use 3G in the US?
if you use a 3 sim you can get service if 3 got a roaming agreement with an usa isp
if the usa isp don't use 3g services on the hz's the rest of the world use you can only get
2g or 2.5g (edge) service
the Telstra Touch HD version (Blackstone - T8285) uses at&t's 850 3G band. it works quite well in the US as long as one is in an area that uses more 850 3G towers vs. 1900 3G towers.
cortez.i said:
the Telstra Touch HD version (Blackstone - T8285) uses at&t's 850 3G band. it works quite well in the US as long as one is in an area that uses more 850 3G towers vs. 1900 3G towers.
Click to expand...
Click to collapse
So it'll be the same 3G and the same speed as if it were an AT&T phone (like iPhone etc.)?
rpimps said:
So it'll be the same 3G and the same speed as if it were an AT&T phone (like iPhone etc.)?
Click to expand...
Click to collapse
it's 3G from at&t, period. as i mentioned in my post, the Telstra HD is limited to using at&t's 850 3G band. at&t uses both 850/1900 to deliver 3G. if you're in an area that uses only/more 1900 3G towers then you may not have 3G access. i believe Phoenix, AZ is an example. can't comment on the speed with an at&t phone because i don't own one. the pic below is an example of the speed i get with my Telstra HD on at&t.
cortez.i said:
it's 3G from at&t, period. as i mentioned in my post, the Telstra HD is limited to using at&t's 850 3G band. at&t uses both 850/1900 to deliver 3G. if you're in an area that uses only/more 1900 3G towers then you may not have 3G access. i believe Phoenix, AZ is an example. can't comment on the speed with an at&t phone because i don't own one. the pic below is an example of the speed i get with my Telstra HD on at&t.
Click to expand...
Click to collapse
If there's 850 towers but more 1900 towers then the 3G just won't work at all? It won't just connect to the 850 ones?
I live in Houston, TX and commute between there and Austin, TX.
rpimps said:
If there's 850 towers but more 1900 towers then the 3G just won't work at all? It won't just connect to the 850 ones?
Click to expand...
Click to collapse
i can't say if it won't work at all. for example, if there are 100 towers and 95 are 1900 and 5 are 850 and, you live near an 850 tower, (theoretically) you should get 3G access. using your example, i would say you'd be connected to Edge more often than 3G.
rpimps said:
I live in Houston, TX and commute between there and Austin, TX.
Click to expand...
Click to collapse
if i remember correctly, there's a user here named tucomora who lives in Houston and has a Telstra HD. i believe he indicated that Houston may have more 1900 towers than 850s. but, as you may know, at&t is adding more 850 towers nation wide. i suggest you send tucomora a PM to get his perspective on using the HD in south texas.
http://forum.xda-developers.com/member.php?u=251104
I looked for tucomora, tucamora, tacamora, couldn't find anyone.
Would you not be able to go into the phone's settings and disable the 1900 band or something? I have a Diamond on AT&T now and it's between upgrading to an HD or waiting another month and signing up with Sprint for the Touch Pro 2 (or Palm Pre now) and then just looking like an idiot carrying 2 phones around.
rpimps said:
I looked for tucomora, tucamora, tacamora, couldn't find anyone.
Would you not be able to go into the phone's settings and disable the 1900 band or something? I have a Diamond on AT&T now and it's between upgrading to an HD or waiting another month and signing up with Sprint for the Touch Pro 2 (or Palm Pre now) and then just looking like an idiot carrying 2 phones around.
Click to expand...
Click to collapse
why would you want to disable the UMTS 1900 3G band? if there are no 850 3G towers, you won't get 3G service you'll get EDGE instead. my phone options are set to Auto for GSM and UMTS and if there are no 850 3G towers it switches to EDGE. simple as that, not a big deal for me (and not implying that it is to you). you can change the GSM/UMTS settings to seek/use only 850/1900 3G towers, but in my experience, if the HD doesn't find an 850 3G tower, i won't have a phone signal, period. if you're in the US and want a HD with 3G capabilities, you get the Telstra Touch HD and accept the fact that having only one US 3G band (e.g., 850 3G) will limit 3G access in some areas.
link to user i was referring to turcomora.
cortez.i said:
why would you want to disable the UMTS 1900 3G band? if there are no 850 3G towers, you won't get 3G service you'll get EDGE instead.[/URL]
Click to expand...
Click to collapse
If there are 850 towers but just not as many as 1900 towers, you could disable 1900 so it only connects to the 850 towers and then you'd have 3G, right? That's what I was saying. I have EDGE on the Diamond but it's so slow it makes me not want to use it most of the time.
rpimps said:
If there are 850 towers but just not as many as 1900 towers, you could disable 1900 so it only connects to the 850 towers and then you'd have 3G, right? That's what I was saying. I have EDGE on the Diamond but it's so slow it makes me not want to use it most of the time.
Click to expand...
Click to collapse
uh, no it doesn't work like that. the phone is going to lock onto the strongest signal possible. if it sees a stronger 1900 signal, that's what the phone will use. if you (could) disable the 1900 band and you're in an area with 1900 towers, you would not have ANY signal at all, no phone, no data. based on your level of concern, wait for the at&t TP2 (or whatever it's called); then you'll have no worries about 3G access.
Thanks for all the help, I just ordered the T8285 so I'll let you know how it is. Will I be able to use all my Diamond accessories with the HD (extra batteries, chargers, etc.)?
rpimps said:
Thanks for all the help, I just ordered the T8285 so I'll let you know how it is. Will I be able to use all my Diamond accessories with the HD (extra batteries, chargers, etc.)?
Click to expand...
Click to collapse
chargers yes, batteries no. The Telstra ROM that comes with your device will have its internet connection settings locked to Telstra (which we can't obviously use in the US). this means you won't be able to access the internet from your phone until you add at&t's connection settings. i never researched methods to add at&t's connection settings so i don't know if they exist. i flashed HardSPL to my device so i could install a custom ROM. i suggest you click the link in my signature and learn about flashing new ROMS. hope you enjoy your device!
Thanks. I looked at some accessories on ebay and they all say for t8282 (for example http://cgi.ebay.com/o569-2in1-Deskt...ries?hash=item3352c2143b&_trksid=p3286.c0.m14 ), are the batteries for the 8282 and the 8285 different or will this work?
rpimps said:
Thanks. I looked at some accessories on ebay and they all say for t8282 (for example http://cgi.ebay.com/o569-2in1-Deskt...ries?hash=item3352c2143b&_trksid=p3286.c0.m14 ), are the batteries for the 8282 and the 8285 different or will this work?
Click to expand...
Click to collapse
bumpppppppppppppp, anyone know?
rpimps said:
Thanks. I looked at some accessories on ebay and they all say for t8282 (for example http://cgi.ebay.com/o569-2in1-Deskt...ries?hash=item3352c2143b&_trksid=p3286.c0.m14 ), are the batteries for the 8282 and the 8285 different or will this work?
Click to expand...
Click to collapse
T8282 battery works with T8285. essentially, accessories for the T8282 work for the T8285. the only difference between the phones is the radio bands.

850 band 3g net work.

I live in the U.S. Virgin Islands.
We have AT&T wireless 850 band 3g.
I want to buy this phone but the idea of not being able to get 3g on it is scaring me.
I heard it has 850 band 3g built in but it is turned off by htc.
Is this true?
Do it have a crack?
Can you tell me what i can do?
There are 2 versions of this phone:
1) The T8282, which doesn't not have the 850 capability at all (not even crippled). This phone will not work at 3G speeds down there, if you're only on 850.
2) The T8285 (Telstra - Australia) version, which does have the 850 capability. You can find them on eBay - and they're generally a little more expensive. I live in the US - and own this version. The only problem I have in Chicago though is that AT&T also uses their 1900 frequency in many areas downtown. I only get Edge speeds down there, but as soon as I'm outside that area and close to an 850 tower, I get 3G speeds again.
Good luck!
It would not be the first time HTC did that.
Remember the touch diamond.

3G Networks hardware LOCKING to each carrier by HTC

Among those of you with a deap knowledge of the inner working of HTC phone for 3G networks.
Is HTC doing something to phones for each carrier to lock the phone to a specific carriers 3G network and no other.
I'm asking because I was talking with a freind of mine who was given a HD2 as a part of a promotion for use on AT&T 3G network (850/2100). He uses T-Mobile and tried to get it to work with his T-Mobile SIM with no success. He also told me he had a conversation with someone from HTC that told him that he would no beable to get his HD2 to work on T-Mobile because the hardware will not work with T-Mobiles 3G network (1700/2100).
If this is the case does anyone know if it changable, is it a Firmware issue that can be changed or is it like hard wired physically?
Then the question is if we are buying these phone, some through contracts others outright, do we want to told whos service we have to use!!
Lets have some good discussion...
there are billions of threads on this.
3g is radio/hardware dependent. he'll unfortunately be stuck on EDGE.
He will have no issues using the phone with T-mobile usa. He will not get 3G because of the bands. He will just have edge. But calls, mms, text, email, and internet will all function properly.
Clarify this please
I bought my HTC HD2 in USA (unlocked) and here in Peru, where I live, I cannot get it to work with 3G. If I lived in USA, is there a way to know with what carrier I would get 3G ?
alejo1575 said:
I bought my HTC HD2 in USA (unlocked) and here in Peru, where I live, I cannot get it to work with 3G. If I lived in USA, is there a way to know with what carrier I would get 3G ?
Click to expand...
Click to collapse
So you are on Claro in Peru?
For 3G you need a phone with 3G 1900 support. If it is the T-Mobile version, that would have 3G on 1700/2100 bands which would be no good. If you got an AT&T handset (850/1900) it would work for 3G for you.
You need to understand what 3G support your version of the phone has. For example mine (Telstra Australia) is 850/2100 - which would not be able to pick up 3G in your network - however it works excellent with Telstra (850) in Australia and currently working well with StarHub (2100) in Singapore.
Your phone is quad band - but that is GSM quadband not 3G - it is 3G dual band and that is what is important for your connection.
***
Edit:
See http://en.wikipedia.org/wiki/List_of_UMTS_networks for list of 3G networks...
Yeah ...bad news
tallmantim said:
So you are on Claro in Peru?
For 3G you need a phone with 3G 1900 support. If it is the T-Mobile version, that would have 3G on 1700/2100 bands which would be no good. If you got an AT&T handset (850/1900) it would work for 3G for you.
You need to understand what 3G support your version of the phone has. For example mine (Telstra Australia) is 850/2100 - which would not be able to pick up 3G in your network - however it works excellent with Telstra (850) in Australia and currently working well with StarHub (2100) in Singapore.
Your phone is quad band - but that is GSM quadband not 3G - it is 3G dual band and that is what is important for your connection.
***
Edit:
See http://en.wikipedia.org/wiki/List_of_UMTS_networks for list of 3G networks...
Click to expand...
Click to collapse
Hi tallmantim ....
Thanks for your response. Yeah, today I did my homework and found that my HD2 has UMTS (HSDPA) 900 - 2100 bands, a fact that is not good because Claro and Movistar in Peru operated the 850 - 1900 bands for 3G.
Question: is there a HD2 version with 850 - 1900 band ????
alejo1575 said:
Hi tallmantim ....
Thanks for your response. Yeah, today I did my homework and found that my HD2 has UMTS (HSDPA) 900 - 2100 bands, a fact that is not good because Claro and Movistar in Peru operated the 850 - 1900 bands for 3G.
Question: is there a HD2 version with 850 - 1900 band ????
Click to expand...
Click to collapse
No, but the Telstra HD2 will pick up the 850MHz signals where they exist. There is no HD2 with the 1900MHz UMTS band at the moment
lude219 said:
there are billions of threads on this.
3g is radio/hardware dependent. he'll unfortunately be stuck on EDGE.
Click to expand...
Click to collapse
Would you mind pointing me in the direction of those BILLIONS of threads.
I've done searchs on hardware dependents, radio/hardware dependents, 3G radio.
There are so many way that is topic could be listed.
I'm finding nothing but my thread now just as before.
theisdept said:
a freind of mine who was given a HD2 as a part of a promotion for use on AT&T 3G network
[...]
Then the question is if we are buying these phone, some through contracts others outright, do we want to told whos service we have to use!!
Click to expand...
Click to collapse
Erm, so AT&T gives a phone, for promotion of their service, and at the same time they should allow you to use another network? You've got too much hope there...
alejo1575 said:
Hi tallmantim ....
Thanks for your response. Yeah, today I did my homework and found that my HD2 has UMTS (HSDPA) 900 - 2100 bands, a fact that is not good because Claro and Movistar in Peru operated the 850 - 1900 bands for 3G.
Question: is there a HD2 version with 850 - 1900 band ????
Click to expand...
Click to collapse
yea my friend my phone is , and i am here with t mobile suffering from same problem like u , i bought that phone which is compatible with Asia , not here in usa
is there way to exchange??
mine is
Network HSPA/WCDMA:
900/2100 MHz
Up to 2 Mbps upload and 7.2 Mbps download speeds
Quad-band GSM/GPRS/EDGE:
850/900/1800/1900 MHz
(Band frequency, HSPA availability, and data speed are
operator dependen)
egypro said:
is there way to exchange??
Click to expand...
Click to collapse
exchange your phone for cash
exchange that cash for a phone that supports the correct bands.

[Q] Will Euro Tab work on US 3G?

I haven't seen any specs for North American Galaxy Tab so I don't know if the AT&T version will have UMTS 850. I have ordered a Euro version that has UMTS 1900 so I presume it "should" work on AT&T 3G but I'm worried because what I can find on this subject implies UMTS 850 is essential for AT&T 3G. Can anyone with experience in US tell me how well the UMTS 1900 only works? Thanks.
Yes
To be more specific, it will if your city still has the 1900 mhz band. Check here: http://www.cellularmaps.com/att_850_1900.shtml
Funk2641 said:
Yes
To be more specific, it will if your city still has the 1900 mhz band. Check here: http://www.cellularmaps.com/att_850_1900.shtml
Click to expand...
Click to collapse
Thanks for the quick response and the maps (first time I've seen coverage maps by frequency, since AT&T no longer offers them) Very helpful and I feel better about haven ordered the Euro version.
Are there any owners of cellphones using the Euro 900/1900 UMTS frequencies on US 3G networks who can share their experience?
I live in the SF Bay Area and here the network is mainly 1900Mhz so the device works very well.
If you live in a market that got 3g fairly early, your network in probably 1900Mhz.
If you live in a market that only recently (1-2 years) got 3G, you might be on a 850Mhz network.

Categories

Resources