WirelessAdvisor.com

azcellphonejunkie · 04-19-2004, 9:43 PM

Curious here in Arizona,
We do not have Cingular here in Arizona, but I have been hearing a lot of things about the "New" AT&T here as they are expanding a lot of thier GSM network. Anyway, I was on the Cingular website tonight, and was noticing that they talk about thier Cingular Nation plans with an 850 and 1900 mhz dualband GSM handset. The question is, where do they have 850 and where do they have 1900? I know they are 1900 in California as that is what the T-Mobile network is and they are the same there, but what are they in other parts of the country. Any information or referrals to other websites that have this information would be appreciated.

chefofthefuture · 04-20-2004, 1:37 AM

I have a similar question for AT&T. I've heard AT&T is deploying 850 in California, and sometimes I hear that it's already active. I've been hearing this for about a year though. Does anyone have the final word on either if it is deployed in SF/Bay Area already or when it will be?

Matt · 04-20-2004, 7:35 AM

Here is a great website

There are links to the A-side and B-side carriers for the entire nation (maps). If your carrier has one of these where you live, they have an 800/850 license there. There is also a map for the combined AT&T/Cingular maps for 800/850.

NYCDru · 04-20-2004, 12:42 PM

Quote:

Originally posted by: Matt
Here is a great website

There are links to the A-side and B-side carriers for the entire nation (maps). If your carrier has one of these where you live, they have an 800/850 license there. There is also a map for the combined AT&T/Cingular maps for 800/850.

AWESOME website.

GREAT RESOURCE.....when is someone going to "pin" this somewere people can easily get to it?

azcellphonejunkie · 04-20-2004, 12:49 PM

This is a good wensite, Thanks for the info Matt!

Matt · 04-20-2004, 3:12 PM

I'm not a mod in this forum....I'll try and get someone else to pin it- or add it to the bookmarks.

ZaphodB · 04-20-2004, 6:26 PM

It's pinned for 90 days.

Matt · 04-20-2004, 10:29 PM

Thanks!

Gabriel · 04-22-2004, 1:40 AM

wait a minute... i went into that website and looked at the 800mhz coverage for cingular & att... it covers most of california, which is where i live. does this mean that here we will have 800 and 1900mhz frequencies going on at the same time? will that affect in anyway the reception?

TProphet · 04-22-2004, 4:36 AM

Any market in which ATTWS has AMPS could potentially be converted to GSM850. In reality, ATTWS has overlaid PCS1900 for GSM. They are in the process of siphoning off AMPS and TDMA spectrum for GSM850, but this process isn't yet complete (and won't be for some time).

In Arizona, it's somewhat moot as ATTWS runs a PCS1900 network natively there. The tower spacing issue that has made GSM1900 so bad in most of their markets isn't an issue there, and their Arizona GSM network performs identically to the TDMA network from a reception standpoint.

BTW, Cingular does have service in Arizona, albeit only a small part of it. They have coverage in Lake Havasu City.

azcellphonejunkie · 04-22-2004, 11:01 AM

Now here is a question...

How close are the T-Mobile and AT&T Wireless Frequencies in the 1900mhz band? Reason I ask is that we have AT&T Wireless GSM antennas on our property. Actually they have antennas on a building right at our property line here at work. Most of the time I have no problems with T-Mobile, but sometimes my phone will show 3-4 T-Mobile bars of service here at work, but will be in the line of site of the AT&T tower and my service will be garbled.

The attached file is an overhead view of the property where I work. The Red circles on the bottom of the screen are the AT&T antennas on the side of the building. The blue spray painted area on the photo is area that I consistantly have problems with service. As you will notice, these are areas that have a direct line of site to the antennas. I walk these areas a lot, and have had problems consistantly. However, if I turn a corner, and am not in the line of site of the antennas, then I have fine service. Can anyone give me input on this?

Let me know if you have problems with the attached jpg...

azcellphonejunkie · 04-22-2004, 11:05 AM

Sorry, I wasn't done editing the photo before I uploaded it, please view this one for the areas where I have service problems...

NYCDru · 04-22-2004, 11:52 AM

Quote:

Originally posted by: azcellphonejunkie
Sorry, I wasn't done editing the photo before I uploaded it, please view this one for the areas where I have service problems...

Ok, in the blue shaded areas you are in Direct line of site of the ATT tower and i would guess that Tmobile's spectrum is either directly above or directly below ATT's which at that range would cause the problems. I am guessing you are within 500-1000 feet in those blues shaded areas.

You loose the probelm when you ar out of direct line of site which makes sence. Where is the Tmobile tower close to there? What is thew distandce on that map? (Legend please?)

azcellphonejunkie · 04-22-2004, 12:14 PM

Yes I am within 1000 feet of the antennas. The attachment to this post has a legend on the left side of the .jpg.

I don't know where the nearest T-Mobile tower is, but when I am outside, I usually have full service. I think it is probabally a bit north of where I am...

azcellphonejunkie · 04-22-2004, 1:31 PM

Update:
This property is a split-level, and I was just out walking the property on the upper level. I pulled the phone out and had full (6 bars) of service. I placed a call to 611 and still showed full service. The quality however was very broken. I am verifying more and more that the AT&T antennas are really wreaking havoc on the T-Mobile signal around here. It is very strange!

TProphet · 04-23-2004, 6:48 PM

They're different frequency blocks entirely, so bleed-over is definitely a problem (and a violation of ATTWS' FCC license). I'd complain to T-Mobile and ask them to do some testing.

That said, I'm not sure bleed-over is to blame, necessarily. You're talking about the bottom floor of a multi-story, large concrete "big box" store, and you haven' told me where the Cingular tower is located. This is, in general, one of the worst possible conditions for PCS1900 performance--especially with a weak signal. You might also try Sprint and Cricket handsets to see how they perform (these are also PCS1900 carriers, although they use CDMA which is generally more resilient to channel interference), and for kicks, even try an ATTWS GSM handset. It may be a building issue, not a radio problem.

04-19-2004, 9:43 PM	#1
azcellphonejunkie The Cell Phone Junkie Join Date: Jan 2002 Location: Cave Creek, AZ Posts: 2,877 Phone(s): Treo 750, HTC Diamond, BB Pearl, iPhone Provider(s): ATT\|Prior: SPCS, Alltel, T-Mble, Nextel, Verizon Devices: Acura GPS, iPAQ rx3100, Bluetooth Thanks: 1 Thanked 11 Times in 7 Posts My Auctions	Cingular 850 vs. 1900 networks Curious here in Arizona, We do not have Cingular here in Arizona, but I have been hearing a lot of things about the "New" AT&T here as they are expanding a lot of thier GSM network. Anyway, I was on the Cingular website tonight, and was noticing that they talk about thier Cingular Nation plans with an 850 and 1900 mhz dualband GSM handset. The question is, where do they have 850 and where do they have 1900? I know they are 1900 in California as that is what the T-Mobile network is and they are the same there, but what are they in other parts of the country. Any information or referrals to other websites that have this information would be appreciated. __________________ The Cell Phone Junkie

04-20-2004, 1:37 AM	#2
chefofthefuture Junior Member Join Date: Aug 2002 Location: SF/Bay Area, California Posts: 226 Provider(s): Verizon Wireless Thanks: 0 Thanked 0 Times in 0 Posts	Cingular 850 vs. 1900 networks I have a similar question for AT&T. I've heard AT&T is deploying 850 in California, and sometimes I hear that it's already active. I've been hearing this for about a year though. Does anyone have the final word on either if it is deployed in SF/Bay Area already or when it will be?

04-20-2004, 7:35 AM	#3
Matt Busy chasing my son Join Date: Oct 2001 Location: Lititz, Pa. Posts: 4,876 Phone(s): Motorola Cliq, BlackBerry 8820 Provider(s): T-Mobile Thanks: 4 Thanked 5 Times in 5 Posts Images: 2	Cingular 850 vs. 1900 networks Here is a great website There are links to the A-side and B-side carriers for the entire nation (maps). If your carrier has one of these where you live, they have an 800/850 license there. There is also a map for the combined AT&T/Cingular maps for 800/850. __________________ Join the T-Mobile Group Forum (or any other!) ...a/k/a cheerioboy26 elsewhere on the net....

04-20-2004, 12:49 PM	Original Poster #5
azcellphonejunkie The Cell Phone Junkie Join Date: Jan 2002 Location: Cave Creek, AZ Posts: 2,877 Phone(s): Treo 750, HTC Diamond, BB Pearl, iPhone Provider(s): ATT\|Prior: SPCS, Alltel, T-Mble, Nextel, Verizon Devices: Acura GPS, iPAQ rx3100, Bluetooth Thanks: 1 Thanked 11 Times in 7 Posts My Auctions	Cingular 850 vs. 1900 networks This is a good wensite, Thanks for the info Matt! __________________ The Cell Phone Junkie

04-20-2004, 3:12 PM	#6
Matt Busy chasing my son Join Date: Oct 2001 Location: Lititz, Pa. Posts: 4,876 Phone(s): Motorola Cliq, BlackBerry 8820 Provider(s): T-Mobile Thanks: 4 Thanked 5 Times in 5 Posts Images: 2	Cingular 850 vs. 1900 networks I'm not a mod in this forum....I'll try and get someone else to pin it- or add it to the bookmarks. __________________ Join the T-Mobile Group Forum (or any other!) ...a/k/a cheerioboy26 elsewhere on the net....

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04-20-2004, 6:26 PM	#7
ZaphodB Signal Go Down De Hole... Join Date: Aug 2002 Location: The Heim of Ana Posts: 3,237 Phone(s): BlackBerry 8830, LG KG800 (GSM Chocolate) Provider(s): Verizon(US) Rogers(CA) Vodafone(ES) 3(HK) Thanks: 0 Thanked 0 Times in 0 Posts	Cingular 850 vs. 1900 networks It's pinned for 90 days. __________________ I can help you in English. Puedo ayudarle en español. Je peux vous aider en français. Posso aiutarli in italiano. Ich kann Sie auf Deutsch helfen. Я могу помочь вам по-русски.

04-20-2004, 10:29 PM	#8
Matt Busy chasing my son Join Date: Oct 2001 Location: Lititz, Pa. Posts: 4,876 Phone(s): Motorola Cliq, BlackBerry 8820 Provider(s): T-Mobile Thanks: 4 Thanked 5 Times in 5 Posts Images: 2	Cingular 850 vs. 1900 networks Thanks! __________________ Join the T-Mobile Group Forum (or any other!) ...a/k/a cheerioboy26 elsewhere on the net....

04-22-2004, 1:40 AM	#9
Gabriel TICUS AD MORTEM Join Date: Oct 2002 Location: California Posts: 355 Phone(s): Motorola v551, Nokia 6610, Nokia 3390 Provider(s): Cingular Thanks: 0 Thanked 0 Times in 0 Posts	Cingular 850 vs. 1900 networks wait a minute... i went into that website and looked at the 800mhz coverage for cingular & att... it covers most of california, which is where i live. does this mean that here we will have 800 and 1900mhz frequencies going on at the same time? will that affect in anyway the reception? __________________ Remember: 1- GSM 900/1800mhz is used not only in Europe, but also in Latin America, Africa, Asia, and Oceania 2- GSM 850/1900Mhz is not only used in USA, but also in Canada and Latin America

04-22-2004, 4:36 AM	#10
TProphet I am a mobile phone Join Date: Nov 2002 Location: Renton, WA Posts: 576 Phone(s): Sanyo 7200, Nokia 6010, Nokia 6015i Provider(s): Sprint, Cingular, Virgin Mobile Canada Thanks: 0 Thanked 0 Times in 0 Posts	Cingular 850 vs. 1900 networks Any market in which ATTWS has AMPS could potentially be converted to GSM850. In reality, ATTWS has overlaid PCS1900 for GSM. They are in the process of siphoning off AMPS and TDMA spectrum for GSM850, but this process isn't yet complete (and won't be for some time). In Arizona, it's somewhat moot as ATTWS runs a PCS1900 network natively there. The tower spacing issue that has made GSM1900 so bad in most of their markets isn't an issue there, and their Arizona GSM network performs identically to the TDMA network from a reception standpoint. BTW, Cingular does have service in Arizona, albeit only a small part of it. They have coverage in Lake Havasu City.

04-22-2004, 11:01 AM	Original Poster #11
azcellphonejunkie The Cell Phone Junkie Join Date: Jan 2002 Location: Cave Creek, AZ Posts: 2,877 Phone(s): Treo 750, HTC Diamond, BB Pearl, iPhone Provider(s): ATT\|Prior: SPCS, Alltel, T-Mble, Nextel, Verizon Devices: Acura GPS, iPAQ rx3100, Bluetooth Thanks: 1 Thanked 11 Times in 7 Posts My Auctions	Cingular 850 vs. 1900 networks Now here is a question... How close are the T-Mobile and AT&T Wireless Frequencies in the 1900mhz band? Reason I ask is that we have AT&T Wireless GSM antennas on our property. Actually they have antennas on a building right at our property line here at work. Most of the time I have no problems with T-Mobile, but sometimes my phone will show 3-4 T-Mobile bars of service here at work, but will be in the line of site of the AT&T tower and my service will be garbled. The attached file is an overhead view of the property where I work. The Red circles on the bottom of the screen are the AT&T antennas on the side of the building. The blue spray painted area on the photo is area that I consistantly have problems with service. As you will notice, these are areas that have a direct line of site to the antennas. I walk these areas a lot, and have had problems consistantly. However, if I turn a corner, and am not in the line of site of the antennas, then I have fine service. Can anyone give me input on this? Let me know if you have problems with the attached jpg... __________________ The Cell Phone Junkie

04-22-2004, 1:31 PM	Original Poster #15
azcellphonejunkie The Cell Phone Junkie Join Date: Jan 2002 Location: Cave Creek, AZ Posts: 2,877 Phone(s): Treo 750, HTC Diamond, BB Pearl, iPhone Provider(s): ATT\|Prior: SPCS, Alltel, T-Mble, Nextel, Verizon Devices: Acura GPS, iPAQ rx3100, Bluetooth Thanks: 1 Thanked 11 Times in 7 Posts My Auctions	Cingular 850 vs. 1900 networks Update: This property is a split-level, and I was just out walking the property on the upper level. I pulled the phone out and had full (6 bars) of service. I placed a call to 611 and still showed full service. The quality however was very broken. I am verifying more and more that the AT&T antennas are really wreaking havoc on the T-Mobile signal around here. It is very strange!

04-23-2004, 6:48 PM	#16
TProphet I am a mobile phone Join Date: Nov 2002 Location: Renton, WA Posts: 576 Phone(s): Sanyo 7200, Nokia 6010, Nokia 6015i Provider(s): Sprint, Cingular, Virgin Mobile Canada Thanks: 0 Thanked 0 Times in 0 Posts	Cingular 850 vs. 1900 networks They're different frequency blocks entirely, so bleed-over is definitely a problem (and a violation of ATTWS' FCC license). I'd complain to T-Mobile and ask them to do some testing. That said, I'm not sure bleed-over is to blame, necessarily. You're talking about the bottom floor of a multi-story, large concrete "big box" store, and you haven' told me where the Cingular tower is located. This is, in general, one of the worst possible conditions for PCS1900 performance--especially with a weak signal. You might also try Sprint and Cricket handsets to see how they perform (these are also PCS1900 carriers, although they use CDMA which is generally more resilient to channel interference), and for kicks, even try an ATTWS GSM handset. It may be a building issue, not a radio problem.

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