can i boost up the reception?

[djeze]

i was at the greek theater in hollywood, open air no walls next to me, and i had no reception. we had all kinds of phones with us, vzw, att, sprint, and even metro. they all had service but my tmo 8900. wtf?

[ace587]

You can't do anything unless tmo fills that deadspot

Posted from my CrackBerry at wapforums.crackberry.com

tmo sits in a very poor seat on the frequency spectrum...tmo has never been good at getting signal inside of ANY structure

[Phlazm]

I'm probably wrong, but I thought TMos edge bands were the same as ATT which is why I can unlock this and use it on ATT. 3G I know has different frequencies. As for TMos coverage, well they have way less towers and I just accept less coverage as the price for much lower monthly fees compared to the big two.

Posted from my CrackBerry at wapforums.crackberry.com

Determine what frequencies your phone offers. For example, if your phone offers the 850 mhz/900mhz frequencies, it will not work on the 1900mhz T-Mobile cell phone towers. Typically, AT&T phones are Tri-Band (850/900/1900) or Quad-Band (850/900/1800/1900) in nature and therefore will work with T-Mobile. You can find the frequencies offered on GSM websites; for example, GSMArena shows all calling frequencies for every major-brand GSM phone on the market.

Making calls, sending text messages and using GPRS/EDGE mobile data connection in the USA requires a mobile phone that supports at least the frequency band filled as “Required” below.

2G capabilities
Required GSM 850 or GSM 1900

Making video calls and using a high-speed 3G data connection in the USA, requires a mobile phone that supports at least the frequency band filled as “Required” below .

3G capabilities
Required UMTS 850 or UMTS 1900

[Artemis68]

Thanks for the frequency explanation, larry!

I was confused for a while about the diff freq needed for tmo and ATT and you laid it out nicely.

Wouldn't it be cool if we could have a berry that supported both UMTS 850 AND 1900
I kind of wish the Bold had that. Ah, I can dream.....

Posted from my CrackBerry at wapforums.crackberry.com

well lets keep our fingers crossed with the 9700.....maybe itll be a att/tmo dual carrier 3G'er......well see if i make it back to tmo or not....i still love em though

[ace587]

AT&T operates on 850/1900 in most areas, and 850/1900mhz 3G

use this link to determine what frequency they use in your area

WirelessAdvisor.com ™ - Cellular phones and wireless phone service information. Since 1998.

T-Mobile uses 1900mhz primarily and requires its phones to have 850mhz, primarily in roaming areas (very limited)

the 850mhz band penetrates buildings more better compared to the 1900mhz band, but the 1900mhz band can hold more people. Hence why PCS carriers are perfectly fine in an urban city where there are lots of people. In rural areas, 850mhz is a must. T-Mobile doesnt have the 850mhz hence why it relies on roaming to give extended coverage to rural areas

thats accurate but tmo uses 1700/2100 for there 3G

[ace587]

Originally Posted by larrygump

thats accurate but tmo uses 1700/2100 for there 3G

i was talking about the gsm part, Yes, AWS is 1700/2100. Both are required. Unlike AT&T which primarily focuses on 850mhz 3G alone.

........right on.......