Posts about RF (Radio Frequency) technology, offering analysis, design principles, applications, and latest innovations.

Understanding RF Math

In the world of wireless design, an engineer must strike a delicate balance between coverage and performance. A high-speed wireless network doesn’t happen by accident. It’s the outcome of careful design and consideration where the art and science of Radio Frequency (RF) mathematics come into …

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Aruba Client Isolation, Nexus vPC & HSRP – Proceed with Caution!

As a Project-based Network Engineer, I’ve had the ‘pleasure’ of encountering a considerable number of bugs while deploying network infrastructure over the years. Sometimes, these ‘bugs’ have enough impact to grind operations to a halt. With a bit of luck, the challenges will arise early …

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Wi-Fi Communications Components

Many factors contribute to the successful transmission and reception of a wireless signal. This post will focus on the most common Wi-Fi communications components and each device’s role in transferring data in wireless systems. Wi-Fi Component Overview The image below illustrates the key components discussed …

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Radio Frequency Fundamentals

What is a Radio Frequency? Radio frequency (RF) is a form of electromagnetic energy typically used in wireless communications systems. RF signals are generated by a transmitting device as an alternating current (AC) which produces electromagnetic waves as it radiates away from the device’s antenna. …

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Do you know the wireless capabilities of your mobile devices? Here’s why you should.

You’ve just purchased some shiny new Wireless Access Points from Vendor X. Vendor X has promised you lightning-fast, wired-like connection speeds. Product datasheets speak of incomprehensible Wi-Fi data rates and sky-high maximum client connection limits; it all sounds great! You deploy the APs which are …

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IEEE 802.11 Standard and Amendments

This article outlines the complete list of 802.11 standards and amendments and is updated as developments are made. As each 802.11 standard is updated by the IEEE, the previous iterations and any amendments that exist at the time are revised and incorporated into a single …

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