Overview, information or turorial about the basics of Assisted GPS (Global Positioning System) or A-GPS used to provide location based services used for cellualr technology and cellualr networks.
Introduction detailing what frequency synthesizers are, and the different types or technologies available: indirect / direct, analogue / digital.
A summary of the diode specifications and diode parameters and ratings seen in datasheets with explanations of what they mean.
Overview of op-amp bandwidth, what it is, how it affects operational amplifier circuits and open loop and closed loop frequency response.
The different types of function generator, their differences and their various applications, including analogue, digital, sweep function generators.
Definitions and details of the MIMO formats or configurations: SISO, SIMO, MISO and MIMO for receiver diversity and transmitter diversity, etc.
A summary or tutorial of IMS - IP Multimedia Subsystem being used for fixed and mobile telecommunications systems.
Security on many issues is of paramount importance - poor security can lead to embarrassing outcomes as discovered on some digital signage in Washington DC, but it emphasises the issue that security on any item connected to the Internet including signage is very important.