Antenna is a device that converts electrical energy into radio waves or vice versa. It is not that the more antennas the better when choosing a strong 4g lte router 300m, but the number of antennas is not the key to determine the performance of strong 4g lte router 300m. More antennas is just to cover more blind spots, size of the covered area, ability to penetrate walls and signal strength does not matter much, because transmission rate and power are the real key factor. Of course, for the same strong 4g lte router 300m with same power, the more antennas the easier the signal coverage. The strength of the signal is mainly subject to transmission power, the greater the  transmission power, the coverage area of strong 4g lte router 300m will naturally increase, and the signal will naturally strengthen. In addition, strong 4g lte router 300m must emit electromagnetic waves for the terminal to receive, it will have certain impact on body if the frequency is too high. For safety reasons, various countries have stipulated that the transmit power of strong 4g lte router 300m should not exceed 100mW, which is 20dBm. It is impossible to get a stronger signal as transmission power has been limited. Another factor that determines the strength of wireless signal is the user’s receiving device, the user will feel that the wireless signal is not good if its receiving sensitivity is not high, and the actual experience of surfing Internet will be poor. As medium of MIMO technology, antenna is only a hardware assist to increase transmission but isn’t enough to affect the quality of WiFi, greater bandwidth and better wireless environment are the key factor.

Good antennas can greatly improve communication quality and communication distance, but how to choose a 4G router with the appropriate number of antennas? Following factors need to be considered.

1.Spectrum: Single antenna, dual antennas and three antennas strong 4g lte router 300m is generally 2.4GHz, frequency range of four antennas, six antennas and eight antennas is generally 2.4GHz and 5GHz.

2.Coverage: Single antenna, dual antennas and three antennas generally cover 50-150 square meters, four antennas generally cover 150-300 square meters, six antennas and eight antennas can cover more than 1,000 square meters.

3.Anti-interference ability: Eight antennas has more antenna units so it has better anti-interference capabilities, such as high-intensity signals and electromagnetic interference, however anti-interference ability is not the only selection principle in different application scenarios.

4.Cost: Different specification antenna price is also quite different, economic costs must be taken into consideration also when select appropriate antenna according to application scenario.

Single antenna, dual antennas, three antennas, four antennas, six antennas and eight antennas are normal antenna types for strong 4g lte router 300m, all of them have excellent features such as sending and receiving signals and improving communication distance. You need to consider application scenarios, frequency range, coverage area, anti-interference ability, and economic cost when selecting an antennas, choose appropriate antenna according to different collection scenarios and frequency band requirements.