Although user manual of dual band 4g router generally states that the effective transmission distance of wireless network signals ranges from 100 to 300 meters, there is a gap for the transmission distance of dual band 4g router with different transmit power. Many people mistakenly believe that they can receive signals as long as they are within the effective range of dual band 4g router so far, but this is not real. In fact many people may overlook a problem, that’s the wireless signal transmission distance marked on dual band 4g router is the distance that can be achieved under ideal conditions. The so-called ideal condition is centered on dual band 4g router, no obstacles around and no interference. But reality is not like this, because the effective distance of a dual band 4g router depends on the wireless transmission power of your router and network card, as well as an important part of the number of obstacles.

According to in-depth analysis of IEEE802.11 standard for dual band 4g router security settings, the maximum distance that a dual band 4g router can cover is usually 100 meters to 300 meters, and the coverage range mainly depends on the openness of the environment, if the device without an external antenna, approximately 300 meters within sight; If it is a semi-open space or an area with isolation objects, the transmission distance is about 35 to 50 meters. If using external antenna, the transmission distance can reach 30 to 50 kilometers or even further, depending on the gain of the antenna itself. We found that many times that the wireless signal transmission distance of dual band 4g router is generally about 20-30 meters after testing, the reason is that the effective distance becomes smaller due to buildings, objects, and signal interference. The network speed is unstable, and many of reasons include unstable voltage and electromagnetic interference.

As for the wireless signal transmission distance of dual band 4g router, you should judge it based on actual situation. If it is in a relatively open place, the general wireless routing signal can reach about 300 meters or even further, but if there are multiple obstacles and gaps in the middle, the transmission distance is only about 50 meters. Distance, signal attenuation and obstacles have big impact, the distance is seriously reduced when blocked by reinforced concrete, generally less than 30 meters. If it is in a metal house, it will be much shorter.