Home Switchboard Unix Administration Red Hat TCP/IP Networks Neoliberalism Toxic Managers
May the source be with you, but remember the KISS principle ;-)
Bigger doesn't imply better. Bigger often is a sign of obesity, of lost control, of overcomplexity, of cancerous cells

3G frequency bands

News This vanity fair world of cellphones and smartphones  Recommended Links Prepaid Wireless Broadband Plans Phablets
Tablets with Wacom digitizer and stylus Tethering and Portable Wi-Fi Hotspots Wi-Fi Direct Humor Etc

AT&T - T-Mobile 3G frequency bands

T-Mobile uses a specific kind of frequency calls AWS and it's the 1700mhz band, if the phone just has 2100mhz it will not receive any kind of 3G signal whatsoever.

Also with AT&T there are some market's with only PCS 3G, and in many area's the 850mhz band is congested to they have surplus capacity on the 1900mhz band, so you may experience poor service quality if you are using a phone with only 850mhz 3G on AT&T, you may see dropped call's and no to slow internet or getting kicked back to GSM regularly.

Ideally for AT&T you need a phone with 1900/850mhz GSM and UMTS/HSPA 3G and for T-Mobile 1900/850mhz GSM and the 1700mhz band for 3G.

GSM and 3G Compatibility

  850 900 1800 1900 3G HSPA+
AT&T     850 MHz
1900 MHz
2100 MHz
T-Mobile       1900 MHz*
Outside U.S.     2100 MHz

Top Visited
Past week
Past month


Old News ;-)

[Nov 03, 2013] HTC C110E Radar Unlocked Smartphone with Windows Phone OS 7.5, 5MP Camera, Touchscreen, Wi-Fi, GPS--No Warranty


5.0 out of 5 stars Buyers be ware of UMTS/3G version before you order January 5, 2012

Not a review of the product, but while shopping for a family member I noticed a lot of these are European imports. Language- and feature-wise this does not matter, but the 3G frequency bands are different!

If you buy the Europe/Asia 900/2100 MHz HSDPA/UMTS version it will *NOT* have 3G/4G on AT&T and T Mobile USA.

For T Mobile USA you need one with the US 1700/2100 MHz HSDPA/UMTS band. Else the phone will still work, but only at much slower EDGE speeds and you will not be able to use voice and data in parallel.

And for AT&T? Well, so far I have not found any unlocked (or locked) version of the HTC Radar that uses AT&T's 3G/4G 1900MHz HSDPA/UMTS band. So AT&T users, you likely will *NOT* be able to use 3G/4G on this phone at all ...

So although this is strictly seen not a review, reading this will likely prevent a lot of returns.

On the phone itself, the family member likes the phone after using it for 2 weeks. Good weight, good quality of materials and not too big. Unless you want a bigger screen, I would recommend this phone if you are in the market for a Windows Phone. The Samsungs felt a bit cheaper in plastic feel compared to this one. The Nokia Lumia 800 has a better screen, but this one wins IMHO on overall quality, weight in the hand and feel.

[Nov 03, 2013] LG Optimus TrueHD LTE P936 Black Factory Unlocked Cell Phones & Accessories

By Dr. Pep

1.0 out of 5 stars Erroneous technical data. Phone is not compatible with 3G/LTE for AT&T or T-Mobile in the US September 15, 2013

According to the LG web site, this phone's 3G is UMTS 900/2100 MHz only. AT&T operates in 1900 and 850 MHz bands, and T-mobile operates in 1700/2100 AWS bands.
This phone's LTE bands are 800/1800/2600MHz while AT&T LTE operates in the 700mhz band and T-mobile operates in the 1700 MHz band.

This phone is not compatible with either AT&T or T-Mobile in the US.



Groupthink : Two Party System as Polyarchy : Corruption of Regulators : Bureaucracies : Understanding Micromanagers and Control Freaks : Toxic Managers :   Harvard Mafia : Diplomatic Communication : Surviving a Bad Performance Review : Insufficient Retirement Funds as Immanent Problem of Neoliberal Regime : PseudoScience : Who Rules America : Neoliberalism  : The Iron Law of Oligarchy : Libertarian Philosophy


War and Peace : Skeptical Finance : John Kenneth Galbraith :Talleyrand : Oscar Wilde : Otto Von Bismarck : Keynes : George Carlin : Skeptics : Propaganda  : SE quotes : Language Design and Programming Quotes : Random IT-related quotesSomerset Maugham : Marcus Aurelius : Kurt Vonnegut : Eric Hoffer : Winston Churchill : Napoleon Bonaparte : Ambrose BierceBernard Shaw : Mark Twain Quotes


Vol 25, No.12 (December, 2013) Rational Fools vs. Efficient Crooks The efficient markets hypothesis : Political Skeptic Bulletin, 2013 : Unemployment Bulletin, 2010 :  Vol 23, No.10 (October, 2011) An observation about corporate security departments : Slightly Skeptical Euromaydan Chronicles, June 2014 : Greenspan legacy bulletin, 2008 : Vol 25, No.10 (October, 2013) Cryptolocker Trojan (Win32/Crilock.A) : Vol 25, No.08 (August, 2013) Cloud providers as intelligence collection hubs : Financial Humor Bulletin, 2010 : Inequality Bulletin, 2009 : Financial Humor Bulletin, 2008 : Copyleft Problems Bulletin, 2004 : Financial Humor Bulletin, 2011 : Energy Bulletin, 2010 : Malware Protection Bulletin, 2010 : Vol 26, No.1 (January, 2013) Object-Oriented Cult : Political Skeptic Bulletin, 2011 : Vol 23, No.11 (November, 2011) Softpanorama classification of sysadmin horror stories : Vol 25, No.05 (May, 2013) Corporate bullshit as a communication method  : Vol 25, No.06 (June, 2013) A Note on the Relationship of Brooks Law and Conway Law


Fifty glorious years (1950-2000): the triumph of the US computer engineering : Donald Knuth : TAoCP and its Influence of Computer Science : Richard Stallman : Linus Torvalds  : Larry Wall  : John K. Ousterhout : CTSS : Multix OS Unix History : Unix shell history : VI editor : History of pipes concept : Solaris : MS DOSProgramming Languages History : PL/1 : Simula 67 : C : History of GCC developmentScripting Languages : Perl history   : OS History : Mail : DNS : SSH : CPU Instruction Sets : SPARC systems 1987-2006 : Norton Commander : Norton Utilities : Norton Ghost : Frontpage history : Malware Defense History : GNU Screen : OSS early history

Classic books:

The Peter Principle : Parkinson Law : 1984 : The Mythical Man-MonthHow to Solve It by George Polya : The Art of Computer Programming : The Elements of Programming Style : The Unix Haterís Handbook : The Jargon file : The True Believer : Programming Pearls : The Good Soldier Svejk : The Power Elite

Most popular humor pages:

Manifest of the Softpanorama IT Slacker Society : Ten Commandments of the IT Slackers Society : Computer Humor Collection : BSD Logo Story : The Cuckoo's Egg : IT Slang : C++ Humor : ARE YOU A BBS ADDICT? : The Perl Purity Test : Object oriented programmers of all nations : Financial Humor : Financial Humor Bulletin, 2008 : Financial Humor Bulletin, 2010 : The Most Comprehensive Collection of Editor-related Humor : Programming Language Humor : Goldman Sachs related humor : Greenspan humor : C Humor : Scripting Humor : Real Programmers Humor : Web Humor : GPL-related Humor : OFM Humor : Politically Incorrect Humor : IDS Humor : "Linux Sucks" Humor : Russian Musical Humor : Best Russian Programmer Humor : Microsoft plans to buy Catholic Church : Richard Stallman Related Humor : Admin Humor : Perl-related Humor : Linus Torvalds Related humor : PseudoScience Related Humor : Networking Humor : Shell Humor : Financial Humor Bulletin, 2011 : Financial Humor Bulletin, 2012 : Financial Humor Bulletin, 2013 : Java Humor : Software Engineering Humor : Sun Solaris Related Humor : Education Humor : IBM Humor : Assembler-related Humor : VIM Humor : Computer Viruses Humor : Bright tomorrow is rescheduled to a day after tomorrow : Classic Computer Humor

The Last but not Least Technology is dominated by two types of people: those who understand what they do not manage and those who manage what they do not understand ~Archibald Putt. Ph.D

Copyright © 1996-2018 by Dr. Nikolai Bezroukov. was initially created as a service to the (now defunct) UN Sustainable Development Networking Programme (SDNP) in the author free time and without any remuneration. This document is an industrial compilation designed and created exclusively for educational use and is distributed under the Softpanorama Content License. Original materials copyright belong to respective owners. Quotes are made for educational purposes only in compliance with the fair use doctrine.

FAIR USE NOTICE This site contains copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available to advance understanding of computer science, IT technology, economic, scientific, and social issues. We believe this constitutes a 'fair use' of any such copyrighted material as provided by section 107 of the US Copyright Law according to which such material can be distributed without profit exclusively for research and educational purposes.

This is a Spartan WHYFF (We Help You For Free) site written by people for whom English is not a native language. Grammar and spelling errors should be expected. The site contain some broken links as it develops like a living tree...

You can use PayPal to make a contribution, supporting development of this site and speed up access. In case is down you can use the at


The statements, views and opinions presented on this web page are those of the author (or referenced source) and are not endorsed by, nor do they necessarily reflect, the opinions of the author present and former employers, SDNP or any other organization the author may be associated with. We do not warrant the correctness of the information provided or its fitness for any purpose.

The site uses AdSense so you need to be aware of Google privacy policy. You you do not want to be tracked by Google please disable Javascript for this site. This site is perfectly usable without Javascript.

Last modified: April, 18, 2018 >