Don't just look at the wireless router antenna. WiFi signal is only related to this parameter.

When buying a wireless router, should you buy one with large antennas and many antennas? I believe this idea exists in many friends' minds.

Opening the wireless router sales page of the e-commerce website, we can find that wireless routers with 3 or more antennas basically occupy the top few lists of best-selling products.

This also reflects the mentality of current consumers when purchasing wireless routers: "The more antennas, the better the signal."

It is difficult to solve the problem of wireless signals at home simply by using a wireless router with multiple antennas. There are many factors that affect the strength of wireless signals.

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The built-in antenna also has a strong signal

The reason why wireless routers have multiple antennas is actually because of MIMO technology.

Whether it is a product with 2 antennas or 3 antennas, it is designed to match the X*X MIMO mode.

For example, the current mainstream single-band 300M and 867Mbps wireless routers must use 2x2 MIMO mode, which means that two antennas are enough.

If there are three or more antennas in a 2x2 MIMO product, the manufacturer is misleading consumers.

Moreover, with the popularity of dual-band wireless routers, some manufacturers have made independent external antennas for each frequency band, so it is not surprising to see some wireless routers with 4 or 6 antennas.

Transmission power directly affects the strength of wireless signals

Editor's opinion:

Importantly, the decisive factor in the quality of the wireless router signal is the transmission power of the wireless router.

Each country has regulations on the transmission power of wireless routers, which generally should not exceed 100mW, or 20dBm (2.4GHz frequency band).

So we can see that, in fact, according to national standards, the signal strength of the transmitter is fixed. No matter how many antennas there are, its transmission power will not change, and it will not affect the coverage of wireless signals.

In addition to the wireless router, we should also look for the cause on the receiving end. If the sensitivity of the wireless network card on the receiving end is not high, the wireless Internet experience will be very poor.