Avril Salter

Avril
Salter

Avril Salter is a technical executive with over 20 years of experience in the wireless industry with corporations including IBM, Intel, Microsoft, Motorola, and Sprint. Follow Avril on Twitter: avrilsalterUSA.

Articles
Wireless Antenna Specifications
The antenna azimuth plane is the pattern that you should look at to determine coverage. Look at the elevation plane to understand how much the signal might spill over to the floors above and below the antenna.
Wireless Controller to Manage Access Points?
The big advantage of installing a wireless controller is that it lets you centrally configure and control your access points. If you need to deploy many APs, this ability can save you a lot of time.
Wireless LAN Performance & Wireless IP Cameras
Wireless IP cameras transmit a constant video stream. This stream can have a significant impact on WiFi systems because WiFi access points don't transmit if the noise level is above a specified threshold.
Q: What is co-channel interference and why should I care about it?
Co-channel interference occurs between two access points (APs) that are on the same frequency channel and can severely affect the performance of your wireless LAN.
Q: Why do I have six antennas on my access point?
Access points that have external antennas often have three antennas for transmission in the 2.4GHz band and three antennas for transmission in the 5GHz band.
Voice Over Wireless LANs
Learn some of the most common problems involving dropped calls over wireless LANs.
Q: How can I eliminate rogue access points from my network?
Solutions to eliminate rogue wireless network access points include a spectrum analyzer, a wireless intrusion detection system, and a wireless intrusion prevention system. Find out what's right for you!
Q: Which changes do I need to make to my wireless LAN to support voice?
Learn specific steps on how to make your wireless LAN support voice calls for laptops, smart phones, or IP phones.
Q: How do I know if my access points support WiFi RFID tagging?
To determine whether your access points (APs) can support WiFi RFID tagging, you need to check two things.
Q: I was advised to deploy my access points in the 5GHz band because it's less crowded. Should I invest in dual-mode access points?
In general, if you deploy in the 5GHz band, you lose coverage. As a result, you must deploy more access points (APs). However, the big advantage of deploying in the 5GHz band is that there is more spectrum available.
Q: Should I use Windows Connect Now on my enterprise network?
Windows Connect Now is designed to simplify home wireless network configuration—not an enterprise deployment tool.
Q: Should I worry about WiFi eavesdropping?
There are all kinds of effective attacks against unsecured wireless communications. However, If you're using good wireless security that includes WiFi Protected Access 2 (WPA2) and IEEE 802.1X, you are well protected.
Q: I heard that denial of service attacks are impossible to stop against wireless. Is that true?
Although you can hinder intrusions and prevent eavesdropping, you can do very little to stop a wireless DoS attack by a dedicated attacker.
Q: Visitors and contractors need wireless Internet access when working at my company. Do I need a whole new set of access points?
Learn how to keep non-employees on a separate wireless network to protect your corporate network.
Q: Should I use Group Policy to configure WiFi in my company?
Using Group Policy to configure the WiFi settings for all domain-joined company systems gives your clients predictable network access, and more.
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