SemFio Networks

  • Home
  • About
  • Services
    • Wi-Fi DevOps with Mist
  • Partners
    • Mist
  • Training
  • Contacts
  • Blog
  • Home
  • About
  • Services
    • Wi-Fi DevOps with Mist
  • Partners
    • Mist
  • Training
  • Contacts
  • Blog

Make Wi-Fi Visible #6 - Radio Frequency Absorption

12/27/2014

1 Comment

 
As we all know, Wi-Fi is amazing. The only thing is... it’s invisible.

So let’s start by explaining what makes Wi-Fi invisible? Wi-Fi uses radio frequencies electromagnetic waves to transfer information. These waves have wavelengths that are not within the visible space.

Light is also an electromagnetic wave. However, its wavelength is within the visible spectrum (between 330 nm and 700 nm). This is what make the light visible to the human eye. In fact, any electromagntic radiation having a wavelength between 330 nm and 700 nm is called “light” or to be precise “visible light”.

This means that we can explain Wi-Fi concepts using light analogies. In this set of articles, that is what we are going to do using simple drawings.

Episode #6 - Radio Frequency Absorption

Let’s finish this first series of article with absorption! Absorption is the fact that a radio wave loses some of its energy going through a medium or an obstacle. A radio wave will typically lose some of its energy as it travels trough the air du to absorption.
Picture
Picture
Light waves are easily absorbed. Indeed, the simple fact of blocking a flashlight with your hand will block the light. A wall will also totally block light. Some other materials like glass will let the light pass through with less absorption.
Picture
As you probably understood, absorption depend on the material the radio wave goes through. Typically, a Wi-Fi wave will be less absorbed going through a dry wall than going through a brick wall. While deploying Wi-Fi, it is important to keep in mind what objects absorbe Wi-Fi radio wave the most in order to find the best APs locations. Performing on-site site survey will help you determining the absorption of the objects of your environment.


Written by François Vergès
1 Comment
joth ethan link
12/17/2020 00:51:19

Journal of Pharmacokinetics & Experimental Therapeutics is an open access journal that focuses on pharmacokinetic properties of drugs, including Absorption, Distribution, Metabolism and Excretion (ADME) while underlining the importance of experimental therapeutics in pharmacokinetic research. Journal of Pharmacokinetics & Experimental Therapeutics accepts manuscripts in clinical pharmacokinetics, population pharmacokinetics, antibody pharmacokinetics, pharmacokinetics review, vancomycin pharmacokinetics, tacrolimus pharmacokinetics, pharmacokinetic drugs, pharmacokinetics intravenous, pharmacokinetics oral, pharmacokinetics renal, pharmacokinetics human, pharmacokinetics rat, pharmacokinetics mice, pharmacokinetics for children, pharmacokinetics research to promote healthy life are welcome.
If your interested can submit your manuscript.
That manuscript should not published in any other journal pages.
You can submit your manuscript, to the below email id.
Email id: pharmacokinetics23@gmail.com
Journal url:
https://www.omicsonline.org/pharmacokinetics-and-experimental-therapeutics.php

Reply



Leave a Reply.

    Picture

    François Vergès

    François Vergès is the founder of SemFio Networks. As a Network Engineer, he has a real passion for Wi-Fi.

    Picture Picture Picture

    Categories

    All
    5G
    5GHz
    6GHz
    802.11
    802.11ax
    802.11v
    802.1X
    AirConsole
    Aruba
    ArubaOS
    AutoCAD
    Automation
    Brand
    Capture
    Cisco
    Cisco WLC
    CLI
    Cloud
    Co-Channel Contention
    Controller Upgrade
    Course
    CWNE
    CWNP
    Design
    DFS
    Diagrams
    Ekahau
    FreeRADIUS
    Frequencies
    FSPL
    Hotspot
    Ideas
    Industry Canada
    Interference
    ISED
    Jetson Nano
    KRACK
    London
    MagicQuadrant
    MakeWi FiVisible
    MakeWi-FiVisible
    Market
    Meetup
    Mobility Express
    News
    Packet Analysis
    Programming
    Python
    Reference Guide
    Script
    Security
    SemFio
    Site-survey
    Site-survey
    Spectrum-analysis
    Technology
    Timeline
    Tip
    Training
    Validation
    Video
    Warehouse
    WiFi
    Wi-FI
    Wi-Fi
    Wi Fi 6
    Wi-Fi 6
    Wifitraining
    Wi Fi Troubleshooting
    Wi-Fi Troubleshooting
    Wireshark
    WLAN Pi
    WLPC
    WPA2

    Archives

    July 2020
    March 2020
    February 2020
    January 2020
    December 2019
    October 2019
    August 2019
    July 2019
    June 2019
    April 2019
    January 2019
    December 2018
    November 2018
    August 2018
    May 2018
    April 2018
    March 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    May 2017
    April 2017
    February 2017
    January 2017
    November 2016
    September 2016
    August 2016
    May 2016
    April 2016
    March 2016
    February 2016
    December 2015
    November 2015
    September 2015
    August 2015
    July 2015
    April 2015
    February 2015
    January 2015
    December 2014
    November 2014
    October 2014
    September 2014
    August 2014
    June 2014
    May 2014

    RSS Feed

SemFioNetworks-EmailContact SemFioNetworks-LinkedInProfile SemFioNetworks-YoutubeChannel

Let's Talk

Please get in touch with us if you have any questions. We offer a wide variety of professional Wi-Fi services that can help your wireless environment becoming faster, more secure and more efficient!
Get in touch
SemFioNetworks-Logo
Copyright © 2020 by SemFio Networks Inc.