WiFi 2.4GHz and 5GHz Frequencies Explained | Simpleng Paliwanag

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Let’s talk about Wi-Fi frequencies and versions. As usual, simplified,

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The Differences:
– Long range
– Slower data speed
– Good at penetrating solid objects
– Best option for a partitioned room

– short range
– Faster data speed
– Bad at partitioned area or with many rooms
– 5GHz is not the same as the Mobile Data 5G.

B- WiFi 1. High rate wifi and can transmit up to 11Mbps
G- WiFi 3. Short distance but can transmit up to 54Mbps at around 60-125ft
N- Wi-Fi 4. This allows 2 frequencies using 2.4GHz and 5GHz
– Bandwidth up to around 150Mbps-300Mbps
– Supports multiple inputs and multiple outputs
– Range up to around 410-820ft (theoretically)
A- WiFi 2. is the early WiFi 5GHz and is very slow with bandwidth at around 3-54Mbps
AC- is WiFi 5. It is the main flagship of 5GHz WiFi

RANGE- is the measure on how far data can travel.
– The higher the frequency of a wireless signal, the shorter its range.
– That is why 5GHz is faster but can only reach shorter distances.

BANDWIDTH- refers to speed of the data being transferred from one device to another
– 5GHz is the best choice for bandwidth.

– Average bandwidth of around 100-300Mbps
– Commercial routers which uses “N” has a realistic reach of around 20-100ft. depending on the obstacles

– Average bandwidth of around 400-1Gbps
– Commercially and realistically, its around 500Mbps-1Gbps
– BUT theoretically, it should reach up to 1.7Gbps
– Range should be around 10-20ft.
– But theoretically, it could reach up to 820ft. “amplified”

Best Scenarios (SUBSCRIBE)
– Best for normal browsing the internet and social media
– Non-demanding and non-real-time usage
– Use 2.4GHz in a partitioned places or if you are far away from the router

– For video streaming
– best for gaming
– Mostly very demanding internet activities that require real-time response.
– Use 5GHz if you are in an open field and close to the router.

WI-Fi 6 or 802.11ax and the recently WiFi 6E
– The latest WiFi version
– Promises bandwidth up to 9.6Gbps theoretically.
– It is designed to cater to large number of connected devices with a network.
– But tests shows that it can only deliver slightly faster bandwidth than WiFi 5 or AC
– WiFi 6 also introduces WPA3 which improves security from WPA2
– WiFi 6 routers are currently expensive and only a few laptops and smartphones supports it.
– QSD 855 supports Wi-Fi 6 but not all smartphones with this chipset has it.
– WiFi 6 is for the future and majority of routers today still use 2.4GHz and 5GHZ with WiFi version N and AC.
– Netgear, ASUS, TP-Link, and D-Link

– Use WiFi channel that has less to zero users
– Use a WiFi Analyzer ( https://bit.ly/3kZKged ) to find out the least used channel
– Not all routers support changing channel, but if yours does, do this to get the best signal and bandwidth.

– makes hacking more difficult
– Malakas sa battery

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