A summary and tables of the LTE frequency band spectrum allocations for 3G & 4G LTE - TDD and FDD.
Q Factor or Quality factor used with inductors and other items in resonant circuits to indicate resistive losses, resonant sharpness. It is a key parameter in any filter design.
Comparison between 8 QAM (8QAM), 16 QAM (16QAM), 32 QAM (32QAM), 64 QAM (64QAM), 128 QAM (128QAM), and 256 QAM (256QAM), - forms of Quadrature Amplitude Modulation
A summary or tutorial covering the essentials of the Zener diode or voltage reference diode used in many power supply and other circuits.
Overview about the free space path loss, FSPL, details, formula and calculator for easy calculations.
31 July 2014
History - This day in 1910, wireless was used for the first time to apprehend a criminal, Dr Crippen - who was escaping from UK. The ships captain spotted him and informed the authorities enabling him to be arrested.
Quote - I think there's a world market for about five computers.- Thomas Watson, founder of IBM. Said well before the introduction of any PCs!
The way things are - A failure will not appear until a unit has passed final inspection.
Notes and details of the diode full wave rectifier circuit often used in power supplies and other applications.
List of Wi-Fi / WLAN / 802.11 bands, their channel frequencies and bandwidth, 2.4 & 5 GHz allocations worldwide, & summary of which WiFi channels can be used together.