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My80211 White Papers (Coming Soon!)

Cisco Wireless Compatibility Matrix (Nov. 2011)

Podcasts / Videos

My80211 Videos

Cisco: 802 11 frames with Cisco VIP George Stefanick

Fluke Networks: Minimize Wi Fi Network Downtime

Aruba: Packets never lie: An in-depth overview of 802.11 frames

ATM15 Ten Talk “Wifi drivers and devices”

Houston Methodist Innovates with Wireless Technology

Bruce Frederick Antennas (1/2)


Bruce Frederick dB,dBi,dBd (2/2)

Cisco AP Group Nugget

Social Links
Revolution WiFi Capacity Planner

Anchor / Office Extends Ports


Peek Inside Cisco's Gear

See inside Cisco's latest wireless gear!

2.4 GHz Channel Overlap




  • CWSP Certified Wireless Security Professional Official Study Guide: Exam PW0-204
    CWSP Certified Wireless Security Professional Official Study Guide: Exam PW0-204
    by David D. Coleman, David A. Westcott, Bryan E. Harkins, Shawn M. Jackman

    Shawn Jackman (Jack) CWNE#54 is a personal friend and has been a mentor to me for many years.  I've had the pleasure and opportunity to work with Jack for 4 years. Jack is a great teacher who takes complex 802.11 standards and breaks them down so almost anyone can understand the concept at hand. I'm excited for you brother. Great job and job well done! Put another notch in the belt!

IEEE 802.11a/g/n Reference Sheet


LWAPP QoS Packet Tagging



Interference Types


Microwave Oven

Cordless Phone


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What is the difference between a Cisco 1141 and 1142 Access Point?



You hear the term; Cisco 1140 series access points. So why do they call it series ? Because there are "2" models of 1140 series access points.

Cisco 1141 is a single band 2.4 GHz access point. This model doesnt support the 5 GHz band.
802.11g/n Controller-based AP; Int Ant; FCC Cfg

Cisco 1142 is a dual band 2.4 GHz / 5 GHz access point.
802.11a/g/n Controller-based AP; Int Ant; FCC Cfg

If you are deploying just 2.4 GHz 802.11g/n and have no furture need for the 802.11a/n band, then
you may want to consider the cost savings by ordering the 1141 model.


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