Posts From April, 2011

What is Ec/Io (and Eb/No)? 

Posted by leopedrini Tuesday, April 12, 2011 10:52:00 AM Categories: Course
If someone asks you "Which Signal Level for good call quality: -80 dbm or -90 dBm?" Beware, if you respond quickly, you might end up missing. This is because the correct answer is ... it depends! The Signal Strength is a very important and essential measure for any technology (GSM, CDMA, UMTS, LTE, etc.). However, it is not the only one: let's talk a little today about another magnitude, equally important: the Signal Noise Ratio. // Although this ratio is of fundamental... read more
 

What is Cellular Field Test Mode? 

Posted by leopedrini Monday, April 11, 2011 10:50:00 AM Categories: Course
The evaluation of the network through the phone's screen is possible using the feature known as a Field Test. // However, there is not much documentation available about this feature, so let's talk a bit about it today. Motivation Allow an IT and Telecom professional access network engineering information. What is Field Test? Field Test is also known as Test Mode, Engineering Mode, Net Monitor or some other similar variation. The mobile device... read more