# Telecommunicationds

Published articles for Telecommunicationds.

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## What Is an AAU in Cellular Networks?

DevFeed: [What Is an AAU in Cellular Networks?](<https://devfeed.tech/articles/what-is-an-aau-in-cellular-networks-40173.md>)

Original publisher: [Read original article](<https://blog.j2sw.com/netops/wireless/active-antenna-unit-aau-cellular/>)

Author: j2sw

Published: 2026-07-22T19:23:00Z

Content type: tutorial

Language: en

Sources: [Justin Wilson (j2sw)](<https://devfeed.tech/sources/justin-wilson-j2sw.md>)

Topics: [Networks](<https://devfeed.tech/topics/networks.md>), [5G](<https://devfeed.tech/topics/5g.md>), [Hardware](<https://devfeed.tech/topics/hardware.md>)

Tags: [5g](<https://devfeed.tech/tags/5g.md>), [aau](<https://devfeed.tech/tags/aau.md>), [cellular](<https://devfeed.tech/tags/cellular.md>), [fiber](<https://devfeed.tech/tags/fiber.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [installation](<https://devfeed.tech/tags/installation.md>), [lte](<https://devfeed.tech/tags/lte.md>), [massive-mimo](<https://devfeed.tech/tags/massive-mimo.md>), [networks](<https://devfeed.tech/tags/networks.md>), [signal](<https://devfeed.tech/tags/signal.md>), [telecommunicationds](<https://devfeed.tech/tags/telecommunicationds.md>), [tower](<https://devfeed.tech/tags/tower.md>), [wireless-infrastructure](<https://devfeed.tech/tags/wireless-infrastructure.md>), [wireless-networking](<https://devfeed.tech/tags/wireless-networking.md>)

### AI overview

This article explains Active Antenna Units (AAUs) in cellular networks. It describes how AAUs integrate antennas and radio components, use fiber and power instead of long coaxial runs, reduce RF loss, and support technologies such as Massive MIMO. It also discusses installation considerations, including greater weight and higher hardware cost.

### Source excerpt

A little off the beaten path on this one. We are diving into a big part of a Cellular tower deployment. Many sites now use an Active Antenna Unit, or AAU. The radio and the antenna are built into the same enclosure. An AAU combines the antenna, radio transceivers, power amplifiers, and low-noise amplifiers into ... Read more The post What Is an AAU in Cellular Networks? appeared first on Justin Wilson (j2sw).