WiFi, or wireless fidelity, falls under the category of 'Wireless Compatibility Certification' in the realm of wireless local area networks. Essentially, it is a form of commercial certification as well as a wireless networking technology. Previously, computers were connected via Ethernet cables, whereas WiFi enables internet connectivity through radio waves.
The terms '2.4G' and '5G' in WiFi refer to frequency bands (GHz). 2.4G is a wireless technology, abbreviated from the frequency range of 2.400GHz to 2.4835GHz. 2.4G WiFi is based on the IEEE 802.11b standard, which operates within the 2.4GHz frequency band. On the other hand, 5G WiFi refers to wireless technology developed based on the IEEE 802.11ac standard, which operates in the 5GHz frequency band.
- radio frequency testing standard: ETSI EN 300 328 V2.2.2
- Electromagnetic compatibility testing standard: ETSI EN 301 489-17 (same for 2.4G/5G WiFi/BT)
- Electrical safety testing standard: EN 62368-1 (same for wireless information technology products)
- Specific Absorption Rate (SAR) testing standard: EN 62209-1 (head SAR), EN 50566 (body SAR), EN 50665, EN 50663
- Radio frequency testing standard: ETSI EN 301 893 V2.1.1 (5G WiFi: 5150-5700MHz), ETSI EN 300 440 V2.2.1 (5G WiFi: 5725-5875MHz)
- Electromagnetic compatibility testing standard: ETSI EN 301 489-17 (same for 2.4G/5G WiFi/BT)
- Electrical safety testing standard: EN 62368-1 (same for wireless information technology products)
- Specific Absorption Rate (SAR) testing standard: EN 62209-1 (head SAR), EN 50566 (body SAR), EN 50665, EN 50663 (MPE)
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