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  2. 2.4 GHz radio use - Wikipedia

    en.wikipedia.org/wiki/2.4_GHz_radio_use

    Many Zigbee/IEEE 802.15.4-based wireless data networks operate in the 2.4–2.4835 GHz band, and so are subject to interference from other devices operating in that same band. The definition is for 16 channels numbered 11–26 to occupy the space, each 2 MHz wide and spaced by 5 MHz. The F 0 of channel 11 is set at 2.405 GHz. The DSSS scheme is ...

  3. Wireless conference system - Wikipedia

    en.wikipedia.org/wiki/Wireless_conference_system

    In some cases, there are dual-band conference system that could change the communication frequency band in according to the usage of the frequency points. They are also susceptible to less interference than 2.4 GHz phones, but Wi-Fi networks in the faster 8.02.11n standard do interfere with 5.8 GHz.

  4. Long-range Wi-Fi - Wikipedia

    en.wikipedia.org/wiki/Long-range_Wi-Fi

    There are many other sources of interference that aggregate into a formidable obstacle to enabling long-range use in occupied areas. Residential wireless phones, USB 3.0 Hubs, baby monitors, wireless cameras, remote car starters, and Bluetooth products are all capable of transmitting in the 2.4 GHz band.

  5. Radio spectrum - Wikipedia

    en.wikipedia.org/wiki/Radio_spectrum

    0.3 to 1 GHz: Ultra-high frequency [18] L: 1 to 2 GHz: Long wave S: 2 to 4 GHz: Short wave C: 4 to 8 GHz: Compromise between S and X X: 8 to 12 GHz: Used in World War II for fire control, X for cross (as in crosshair). Exotic. [19] K u: 12 to 18 GHz: Kurz-under K: 18 to 27 GHz: German: Kurz (short) K a: 27 to 40 GHz: Kurz-above V: 40 to 75 GHz ...

  6. Electromagnetic interference - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_interference

    Electromagnetic interference divides into several categories according to the source and signal characteristics. The origin of interference, often called "noise" in this context, can be human-made (artificial) or natural. Continuous, or continuous wave (CW), interference arises where the source continuously emits at a given range of frequencies.

  7. Wi-Fi - Wikipedia

    en.wikipedia.org/wiki/Wi-Fi

    Wi-Fi (/ ˈ w aɪ f aɪ /) [1] [a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.

  8. Gigabit wireless - Wikipedia

    en.wikipedia.org/wiki/Gigabit_Wireless

    Examples of frequency and bandwidths at and approaching Gigabit Wireless Category Frequency Band size (MHz) Modulations Full Duplex capacity (Mbit/s) Distance References Indoor Consumer Grade AC 5 GHz 80 IEEE 802.11ac ~200 Same room [3] Outdoor PtP AC 5 GHz 80 x 2 (160) IEEE 802.11ac: 750 50 km [4] Unlicensed carrier grade 24 GHz 100 256 QAM 1000

  9. List of WLAN channels - Wikipedia

    en.wikipedia.org/wiki/List_of_WLAN_channels

    ^A In the 2.4 GHz bands bonded 40 MHz channels are uniquely named by the primary and secondary 20 MHz channels, e.g. 9+13. In the 5 GHz bands they are denoted by the center of the wider band and the primary 20 MHz channel e.g. 42[40] ^B In the US, 802.11 operation on channels 12 and 13 is allowed under low power conditions.