GSM Handover or Handoff

Tutorial, overview of the essentials of GSM handover or handoff from one cell to another and detailing types of handover and methodologies used.


SMD / SMT Resistor

Details, and information about SMD resistors including packages available, measurements, power ratings, markings, suitable applications and other useful details.

Radio receiver image response and image rejection

Overview or tutorial of the basics of superhet receiver image response and image rejection as well as IF breakthrough specifications and their impact on radio communications systems.


MIMO Spatial Multiplexing

An overview of MIMO - Multiple Input Multiple Output, spatial multiplexing used to provide additional data bandwidth in multipath radio scenarios.

Facts of the day


Wi-Fi 802.11 Channels & Frequencies

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.

18 September 2017 | Mike Logan | andersDX

Should I consider AMOLED?

LED technology is now being used for many applications not envisaged years ago. One variant of LED technology namely AMOLED, active-matrix organic light-emitting diode, technology is a form that is being used increasingly.

Should I consider AMOLED? news from

Online - Fundamentals of Modern RF and Wireless Communications Engineering
This on-line course enables you to quickly get up-to-speed & understand key concepts of modern radio frequency, RF & wireless communications systems

More training courses

RF Power Measurement Solution for Multi-antenna MIMO Transmissions
Keysight provides this whitepaper detailing a new RF power measurement solution that addresses the revised EN 300 328 v.1.8.1 and EN 301 893 v1.7.1 standard for MIMO.

More whitepapers is operated and owned by Adrio Communications Ltd and edited by Ian Poole. All information is © Adrio Communications Ltd and may not be copied except for individual personal use. This includes copying material in whatever form into website pages. While every effort is made to ensure the accuracy of the information on, no liability is accepted for any consequences of using it. This site uses cookies. By using this site, these terms including the use of cookies are accepted. More explanation can be found in our Privacy Policy