Many netizens may have noticed that when connecting to Wi-Fi, two signals appear simultaneously—one with a “5G” suffix and the other without. Why does the same Wi-Fi show two signals? Does the “5G” at the end of the Wi-Fi name mean faster speeds? Let’s explore this together!
What Does the “5G” After the Wi-Fi Name Mean?
In fact, the “5G” in the Wi-Fi name refers to 5 GHz (Hz), representing the 5 GHz frequency band; while the mobile 5G refers to the fifth generation of communication technology, where “G” stands for generation. The two “5G” are not the same thing.
Common Wi-Fi bands include 2.4G and 5G. Previously, routers only had a single 2.4G Wi-Fi signal, which had limited bandwidth. Many devices operated on this band, causing significant interference and lower speeds. With the popularization of fiber broadband, dual-band wireless routers emerged, capable of simultaneously transmitting signals on both the 2.4G and 5G bands.
What Are the Differences Between These Two Bands?
2.4G refers to the signal frequency band between 2.4GHz and 2.4835GHz, which has strong wall penetration and longer transmission distances; however, 2.4G Wi-Fi has a narrower bandwidth, is older, and many devices use this band, leading to more interference and congestion, similar to heavy traffic during rush hour.
On the other hand, the 5G signal frequency band ranges from 4.910GHz to 5.875GHz, which has poor wall penetration and shorter transmission distances compared to 2.4G; however, it has a wider bandwidth, less interference, and provides faster and more stable speeds, like driving smoothly on a highway.
How to Choose Between the Two Wi-Fi Signals When Connecting?
If you are close to the router and do not move much, you should connect to the 5G Wi-Fi first for a stable signal and faster speed.
If you frequently move around and have multiple walls between you and the router, connect to the 2.4G Wi-Fi first for better signal coverage and smoother internet.
Note: To use 5G Wi-Fi, your devices such as smartphones and laptops must support dual-band Wi-Fi; most old desktops and TVs can only detect the 2.4G Wi-Fi signal.
Tips to Speed Up Your Wi-Fi
1. Place the Router in the Center of the House
The placement of the router is crucial; it should ideally be positioned in the center of your home. If you live in a two-story building, consider mounting it on a wall or near the ceiling. Generally, signals tend to disperse downwards, so setting it on the second floor can be beneficial.
2. Avoid Signal Obstructions
While signals can penetrate walls, thicker walls will cause more signal attenuation. If your home is made of brick or concrete, the signal will be absorbed by the walls, significantly weakening the signal when it passes through. Similar to this, sinks can absorb and weaken the signal, obstructing transmission. Additionally, materials like metal and mirrors can reflect signals, so placing the router behind a TV or in the bathroom is not ideal.
3. Keep Away from Interfering Appliances
Both microwaves and routers emit electromagnetic waves at 2.4GHz, so using a microwave can interfere with your Wi-Fi signal. Metal can also absorb signals, so keep the router away from appliances like refrigerators and stoves.
In conclusion, the “5G” suffix in the Wi-Fi name does not necessarily mean ultra-fast speeds; the specific Wi-Fi connection should be chosen based on the situation.
Source: China Mobile Science and Technology Association
