A hands-on course focusing on the technical support of WiFi. Wireless LANs are often seen as simple communications that are simply installed and then left alone to work. This course ensures that delegates will be able to install WiFi networks which work but also enable the delegates to troubleshoot WiFi when it does go wrong.

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  • Intro to data communications & networking
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Delegates will learn how to

  • Compare 802.11 standards.
  • Configure WiFi networks.
  • Troubleshoot WiFi networks using spectrum analysers, Wireshark and other tools.
  • Implement 802.11 security.
  • Perform RF surveys.
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History, standards.

RF fundamentals

What is RF? Wavelength, Frequency, Amplitude, Phase. Wave behaviour. RF components. Watts, mW, dB, SNR, Link budgets. Hands on: Spectrum analysis. Listing WiFi networks. WiFi connection. inSSIDer.


Radiation envelopes, polar charts, gain, Antenna types. Line of Sight, MIMO.
Hands on: Connecting, installing, changing antennae. RSSI values.


802.11-2007, 802.11 post 2007, 802.11 drafts. 802.11 b/g/n.
Hands on: WiFi performance measurement.

Spread Spectrum

RF frequency bands, FHSS, DSSS, OFDM. Channels.
Hands on: Configuring channels.


Mesh, Access points, distribution systems, SSID.
Hands on: AP configuration. Client connection profiles.

802.11 MAC

CSMA/CA, Management frames, control frames, data frames. Passive scanning, active scanning. Open system authentication. Shared Key authentication. Association. RTS/CTS. Power management.
Hands on: Capturing frames, analysing frames.

WiFi architecture WiFi client, WLAN architecture: Autonomous, Centralised, distributed. WiFi bridges. WiFi routers. PoE.
Hands on: WLAN controllers.


RF interference, multipath, adjacent channels, low SNR, mismatched power. Coverage, capacity.

802.11 Security

Basics, Legacy security: WEP, MAC filters, SSID cloaking. PSK, 8021.X/EAP, WPA/WPA2. TKIP/CCMP encryption. Guest WLANs. Wireless attacks, intrusion monitoring.
Hands on: WEP cracking, WPA2 configuration. RADIUS.

WiFi security monitoring

Wireless Intrusion Detection and Prevention Systems. Device classification, WIDS/WIPS analysis. Monitoring. 802.11w.
Hands on: Laptop spectrum analysers.

RF Site surveys

Protocol and spectrum analysis, coverage analysis. Site survey tools.
Hands on: Performing a site survey.

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Why choose QA

Dates & Locations

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Find more answers to frequently asked questions in our FAQs: Bookings & Cancellations page.

How do QA’s virtual classroom courses work?

Our virtual classroom courses allow you to access award-winning classroom training, without leaving your home or office. Our learning professionals are specially trained on how to interact with remote attendees and our remote labs ensure all participants can take part in hands-on exercises wherever they are.

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How do QA’s online courses work?

QA online courses, also commonly known as distance learning courses or elearning courses, take the form of interactive software designed for individual learning, but you will also have access to full support from our subject-matter experts for the duration of your course. When you book a QA online learning course you will receive immediate access to it through our e-learning platform and you can start to learn straight away, from any compatible device. Access to the online learning platform is valid for one year from the booking date.

All courses are built around case studies and presented in an engaging format, which includes storytelling elements, video, audio and humour. Every case study is supported by sample documents and a collection of Knowledge Nuggets that provide more in-depth detail on the wider processes.

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When will I receive my joining instructions?

Joining instructions for QA courses are sent two weeks prior to the course start date, or immediately if the booking is confirmed within this timeframe. For course bookings made via QA but delivered by a third-party supplier, joining instructions are sent to attendees prior to the training course, but timescales vary depending on each supplier’s terms. Read more FAQs.

When will I receive my certificate?

Certificates of Achievement are issued at the end the course, either as a hard copy or via email. Read more here.

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