WIFI 6

Wi-Fi 6 is the next-generation standard in WiFi technology. Wi-Fi 6 also known as “AX WiFi" or "802.11ax WiFi” builds and improves on the current 802.11ac WiFi standard. Wifi 6 will be more Speed and Greater Stability. (Source: Internet)

Wi-fi 6E is an extended version of Wi-fi 6.

Currently, there are three frequency ranges for WIFI + WIFI6E.

1. 2.4–2.5 GHz (WIFI 2.4GHz) 100MHz
2. 4.9-5.875GHz (WIFI 5.8GHz) 1000MHz
3. 5.9-7.125GHz (WIFI 6E) 1225MHz

The second and third frequency ranges up to 2.2GHz

The current antenna technology conditions for the second frequency band to extend the third frequency band is equivalent from 4.9GHz to 7.125GHz (bandwidth up to 2.2GHz range)
In the previous antenna technology, PATCH or OMNI array in the second frequency range 4.9GHz to 5.9GHZ
For example, OMNI 3dbi - the center frequency is placed at 5.6GHz (using PCB design) Actual approximate gain conditions (such a design is not yet stacked array)
Meaning is 2 designs:  4.9GHz to 7.125GHz (bandwidth up to 2.2GHz range)

1. Designed as dual-frequency (two times more volume/unit price increase/gain comparison frequency)
2. Design and accept single frequency (volume maintenance/unit price maintenance/gain gap large)

Reducing 3dbi is equivalent to reducing the transmission distance by 50%/relatively reducing 6dbi, leaving 25% of the transmission distance

For example, the original 20dbi transmission distance is (23dbm) 3km.

If the center frequency is used~~3km can be transmitted, but in low-frequency or high-frequency places the transmission, distance is left750M to 1.5km and It usually is used outdoor