A:In theory, rain attenuation has a certain impact on microwave transmission. But this effect is related to the transmission frequency. The higher the frequency, the greater the impact, the lower the frequency, the smaller the impact, and the farther the transmission distance, the greater the impact. For the 2.4G and 5G frequencies used by WLAN, the impact of rain attenuation is small and can be basically ignored. If it is long-distance point-to-point transmission, it is beneficial to reserve some gain margin appropriately. Generally speaking, low frequencies are less affected by weather and the environment, so 2.4G is less affected than 5G in severe weather. But they can generally be ignored.