What are the various technologies employed by wireless devices to maximize their use of the available radio frequencies? Also discuss methods used to secure 802.11 wireless networking in your initial thread.

Please make your initial post and two response posts substantive. A substantive post will do at least TWO of the following:

Ask an interesting, thoughtful question pertaining to the topic
Answer a question (in detail) posted by another student or the instructor
Provide extensive additional information on the topic
Explain, define, or analyze the topic in detail
Share an applicable personal experience