How many times have you wished that you had RF goggles? You could wear them during site surveys and RF-related troubleshooting tasks, and people would think you are Wile E. Coyote, Super Genius! Well, sorry to disappoint you, but I don’t have wearable RF goggles, but I think I do have the next best thing: a web-based Wi-Fi channel simulator.
(For a demo, click on the image and then click on the "power" button below to make it light up.)
For those of you using iOS, sorry, this is built with that “evil” stuff called Flash. Even so, I think you’ll agree that it’s extremely cool and more than useful. All credit, kudos, and thanks go to my friend Flash-Master Rick Murphy at Wireless Training Solutions – the best darned Wi-Fi training outfit west of the Atlantic Ocean. Rick Murphy and Scott Williams at WTS are ex business partners of mine who have continued forward in the Wi-Fi training business, and their list of clientele is remarkable. That’s not surprising given the quality of their training. Rick has been using Flash to build AMAZING (OK, that word actually isn’t adequate, but it’s all I have) simulations for courseware for years, and he’s the best I’ve ever seen at doing it. You should see some of his remarkable creations! (especially some illustrating 802.11 contention!)
I started in Wi-Fi 13 years ago, and even still fundamentals like channels, power, regulatory requirements, system components, and much more are still generally misunderstood in the market. I strongly recommend that everyone pick up a copy of David Coleman’s and David Westcott’s newest CWNA Study Guide (I just bought a copy because it’s the best reference book in the industry) to learn the latest/greatest information on Wi-Fi fundamentals. Rick’s channel simulator is extremely handy in visualizing 20 and 40 MHz channels for an 802.11n deployment.
A big shout-out to Rick, Scott, David Coleman, Marcus Burton, and yes, David Westcott (even though he and Kimberly Graves (#2!) both work for the wrong team) for continuing to educate the industry. Well done.