300-425 · Question #45
Which non-Wi-Fi interferer can be identified by Metageek Chanalyzer?
The correct answer is B. jammers. Metageek Chanalyzer uses a hardware spectrum analyzer (Wi-Spy) to capture raw RF energy, enabling it to detect non-802.11 RF interferers such as jammers that do not transmit valid Wi-Fi frames.
Question
Which non-Wi-Fi interferer can be identified by Metageek Chanalyzer?
Options
- APDAs
- Bjammers
- Csmartphones
- Dprinters
How the community answered
(47 responses)- A2% (1)
- B91% (43)
- C2% (1)
- D4% (2)
Why each option
Metageek Chanalyzer uses a hardware spectrum analyzer (Wi-Spy) to capture raw RF energy, enabling it to detect non-802.11 RF interferers such as jammers that do not transmit valid Wi-Fi frames.
PDAs that have a Wi-Fi radio are 802.11-compliant devices and are visible to standard WLAN protocol analyzers, not classified as non-Wi-Fi interferers.
Jammers are purpose-built RF interference devices that transmit broadband noise or continuous-wave RF energy outside the 802.11 protocol stack, making them invisible to standard wireless packet capture tools. Chanalyzer's spectrum analysis engine characterizes raw RF energy signatures in the 2.4 GHz and 5 GHz bands, allowing it to identify and classify the wideband RF signature characteristic of a jammer. Because jammers do not send 802.11 frames, only a spectrum analyzer - not a protocol analyzer - can detect them.
Smartphones communicate over 802.11 when on Wi-Fi and are therefore Wi-Fi devices, not non-Wi-Fi RF interferers detectable by spectrum analysis alone.
Printers with wireless adapters use the 802.11 protocol and appear as normal Wi-Fi clients, not as non-Wi-Fi RF interference sources.
Concept tested: Spectrum analysis identification of non-Wi-Fi RF interferers
Source: https://www.metageek.com/training/resources/chanalyzer-basics/
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