A summary and tables of the LTE frequency band spectrum allocations for 3G & 4G LTE - TDD and FDD.
Essential circuit details, equations and calculations for operational amplifier gain for generic, open and closed loop circuit configurations.
Find out all about the data rates, noise margins and the advantages and disadvantages of the different forms of QAM, quadrature amplitude modulation.
Summary of the different types of diodes used in electronics with links to further in-depth pages on individual diode types with circuit design details.
Overview about the free space path loss, FSPL, details, formula and calculator for easy calculations.
22 October 2014
History - This day in 1797, Andre-Jacque Garnerin made the first parachute jump. He lept from a balloon at Parc Monceau in Paris using a seven-metre silk parachute that resembled an umbrella.
Quote - The only way to discover the limits of the possible is to go beyond them into the impossible. - Arthur C Clarke
Fact - There are 1,929,770,126,028,800 different colour combinations on a Rubix cube.
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.
Essentials of Radio Frequency, RF signal generators or microwave signal generators, facilities, capabilities, operation, etc . . .