The Nokia AHHB 474252A is a Remote Radio Unit RRU designed by Nokia for use in telecommunications networks. It operates in the 2600MHz frequency range, which is commonly used for 4G LTE technologies. As an RRU, it is responsible for transmitting and receiving radio signals between the base station and the wireless devices. The NOKIA 474252A RRU is optimized for 4G LTE networks and provides enhanced coverage and capacity for high-speed data transfer. It is designed to be compact and energy-efficient, making it suitable for various deployment scenarios in mobile communication networks.