CCNA Video Training Series

Instant Access, Web or Mobile!

Only $99 for 30 days...
Renew at half price!


Includes FREE Practice Exams!

Member Login

Lost your password?

Not a member yet? Sign Up!

Official Lammle User Forum

Prev Previous Post   Next Post Next
Old 04-18-2012, 12:58 PM
joshhunte joshhunte is offline
Join Date: Apr 2012
Posts: 1
Default Refraction vs Diffraction

Currently reading Todd Lammle's CCNA Wireless book.

It's a pleasant read however I have noticed a few errors - most I think have been covered by the errata on the Sybex publisher site.

However I'm slightly stuck on Page 50 of the book whilst explaining RF behaviour:

"Diffraction is commonly confused with refraction, but the two are vastly dissimilar because diffraction bends the RF, whereas in refraction the RF bounces."

If I go to the Refraction section on the previous page it describes how drier air bends the signal away from the earth and how humid air the opposite. Likewise Diffraction is described as the signal bending around objects.

Please can someone provide a clearer explanation.


Last edited by joshhunte; 04-18-2012 at 01:34 PM.
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 05:54 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.