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Mobile and Wireless: Page 2 of 5


Special Issue:
Affordable IT


• Introduction

• Desktop Management

• Desktop Security

• Patch Management

• Protocol Analyzers
• Network Monitoring

• Network Configuration

• Storage
• Whiteboxes &

  Used Gear
• All-In-One Gateways
• Mobile & Wireless
• E-Mail

• Web Servers
• Load Balancers
• Remote Access

After your APs are installed, perform a site survey to verify the coverage patterns and speeds of the wireless network. AirMagnet's and Ekahau's site-survey tools cost thousands of dollars, but a combination of ping and a good wireless client card can also ascertain coverage. Cisco and Proxim cards generally include capable client utilities that show details such as signal strength, quality and connection speed. Choose a minimum data rate--say, 5.5 Mbps--and lock in your client or AP at that speed. Using a laptop, you can move systematically throughout your location, recording the signal strength and link speed while pinging the AP in the background.

To support multiple standards, you'll need to generate different coverage maps for 802.11a, b and g. This manual method won't generate the fancy heat maps obtainable from site-survey tools, but it will give you the information necessary to guarantee coverage and service.

Look Both Ways