2.4 GHz ISM Band
Wi-Fi 802.11b/g/n/ax · Bluetooth · Zigbee/IEEE 802.15.4
| Frequency Range | 2.400–2.500 GHz |
| Wavelength | 12.5 cm |
| ITU / Standard | ISM Band (Global) |
Applications
- →Wi-Fi 802.11b/g/n/ax
- →Bluetooth
- →Zigbee/IEEE 802.15.4
- →Bluetooth LE
- →Microwave ovens
- →Cordless phones
- →Baby monitors
- →RC control links
Propagation Characteristics
Moderate building penetration. Heavily congested in urban areas. Wi-Fi has 3 non-overlapping 20 MHz channels (1, 6, 11 in US). Microwave ovens cause interference near 2.45 GHz.
Regulatory Notes
Global unlicensed. FCC: 1W max (30 dBm) with point-to-point exceptions. ETSI: 100 mW EIRP for Wi-Fi. Most globally consistent ISM band.
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