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2. DJI Phantom - Wikipedia

   en.wikipedia.org/wiki/DJI_Phantom

   It uses 2.4 GHz for control and is powered by a 2000mAh battery, giving it a flight time of about 15 minutes. [2] [3] [4] It did not include a built-in camera, but it can be fitted with an optional mount for a GoPro HERO camera. [4] The drone uses a GPS-enabled NAZA-M autopilot system allowing it to hover with automatic wind resistance. [2] [5]

3. 2.4 GHz radio use - Wikipedia

   en.wikipedia.org/wiki/2.4_GHz_radio_use

   Using cordless phones that do not use the 2.4 GHz band. Using the 5 GHz band. DECT 6.0 (1.9 GHz), 5.8 GHz or 900 MHz phones, commonly available today, do not use the 2.4 GHz band and thus do not interfere. VoIP/Wi-Fi phones share the Wi-Fi base stations and participate in the Wi-Fi contention protocols.

4. Long-range Wi-Fi - Wikipedia

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

   Long-range Wi-Fi especially in the 2.4 GHz band (as the shorter-range higher-bit-rate 5.8 GHz bands become popular alternatives to wired LAN connections) have proliferated with specialist devices. While Wi-Fi hotspots are ubiquitous in urban areas, some rural areas use more powerful longer-range transceivers as alternatives to cell ( GSM , CDMA ...

5. List of wireless network protocols - Wikipedia

   en.wikipedia.org/wiki/List_of_wireless_network...

   1.2 Wireless local area network ... This article's lead section may be too long. ... 2.4 GHz: Unlicensed ISM: Low Rate WPAN (802.15.4) ...

6. DRDO Netra - Wikipedia

   en.wikipedia.org/wiki/DRDO_Netra

   Netra can be launched from a small clearing, and it can fly up to a distance of 2.5 km from its take-off point. The operational altitude of the UAV is 200 m. With an on-board wireless transmitter, it can carry out surveillance in an area of 1.5 km Line of Sight (LOS) at the height of 300 m, for 30 minutes on a single battery charge.

7. List of battery sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_battery_sizes

   The full battery designation identifies not only the size, shape and terminal layout of the battery but also the chemistry (and therefore the voltage per cell) and the number of cells in the battery. For example, a CR123 battery is always LiMnO 2 ('Lithium') chemistry, in addition to its unique size.