1. Introducció
The ALFA Network AWUS036ACH is a high-performance dual-band AC1200 wireless USB 3.0 Type-C Wi-Fi adapter designed to provide extended range and reliable wireless connectivity for your computer. It supports both 2.4GHz and 5GHz frequency bands, offering speeds up to 300Mbps on 2.4GHz and 867Mbps on 5GHz, compliant with 802.11ac, 802.11a, 802.11b, 802.11g, and 802.11n standards. Equipped with two external 5dBi antennas, it enhances signal reception and transmission, making it ideal for demanding applications such as HD streaming, online gaming, and large file transferències.

Figure 1: The ALFA Network AWUS036ACH Wi-Fi Adapter with its two external antennas.
2. Contingut del paquet
Si us plau, verifiqueu que tots els elements que s'enumeren a continuació estiguin inclosos al vostre paquet:
- 1x AWUS036ACH Wireless USB Adapter
- 2x Detachable High Gain 5dBi Antennas
- 1x USB 3.0 Type-C Cable
- 1x Guia de configuració ràpida
- 1x CD de controladors

Figure 2: All components included in the ALFA Network AWUS036ACH package.
3. Configuració
Follow these steps to set up your AWUS036ACH Wi-Fi adapter:
- Col·loqueu les antenes: Carefully screw the two 5dBi detachable antennas onto the RP-SMA female connectors located at the rear of the AWUS036ACH adapter. Ensure they are securely fastened but do not overtighten.
- Connexió a l'ordinador: Plug the USB 3.0 Type-C cable into the Type-C port on the AWUS036ACH adapter and connect the other end (USB Type-A) to an available USB 3.0 port on your computer. For optimal performance, use a USB 3.0 port (typically blue colored).
- Instal·leu els controladors:
- Windows/MacOS: Insert the included Driver CD into your computer's optical drive and follow the on-screen instructions to install the necessary drivers. If your computer does not have an optical drive, or for the latest drivers, visit the official ALFA Network weblloc.
- Linux: Driver installation for Linux may require specific commands or compilation. Refer to the Quick Setup Guide or the ALFA Network website for detailed instructions for your Linux distribution.
The adapter supports Windows XP/Vista/7/8/8.1/10, Apple MacOS 10.4 to 10.12, and various Linux distributions.

Figura 3: posterior view of the adapter showing the RP-SMA antenna connectors.

Figure 4: The AWUS036ACH adapter connected to its USB 3.0 Type-C cable.

Figure 5: Key features of the AWUS036ACH, including high-gain antennas and USB 3.0 connector.
4. Instruccions de funcionament
Once the drivers are successfully installed and the adapter is connected, your computer should recognize the AWUS036ACH as a wireless network adapter.
- Accés a la configuració de xarxa: Open your computer's network settings (e.g., Wi-Fi settings on Windows, Network Preferences on MacOS, or Network Manager on Linux).
- Escaneja per a xarxes: The adapter will automatically scan for available wireless networks in your vicinity.
- Selecciona i connecta: Select your desired Wi-Fi network from the list. If prompted, enter the network's security key (password).
- Funcionament de doble banda: The AWUS036ACH supports both 2.4GHz and 5GHz bands. For faster speeds and less interference, connect to a 5GHz network if available. The 2.4GHz band offers wider coverage.
The built-in signal amplifier and high-gain antennas dramatically extend signal coverage, allowing for improved connectivity even at greater distances from your router.

Figure 6: Illustration of the AWUS036ACH's application in extending Wi-Fi range within a home or office environment.
5. Solució De Problemes
If you encounter issues with your AWUS036ACH adapter, consider the following:
- No s'han detectat xarxes Wi-Fi: Ensure the antennas are securely attached. Verify that the adapter is properly plugged into a functioning USB port. Check if the Wi-Fi function on your computer is enabled.
- Velocitat de connexió lenta: Ensure you are connected to the appropriate band (5GHz for higher speeds, if available). Check for interference from other devices. Try repositioning the adapter for better signal reception.
- Problemes del controlador: If the adapter is not recognized or functions incorrectly, reinstall the drivers from the provided CD or download the latest version from the official ALFA Network website. Ensure you select the correct driver for your operating system.
- Connexió intermitent: This could be due to signal interference or power management settings on your computer. Disable USB power saving features for the adapter in your operating system's device manager.
- L'adaptador no s'encén: Ensure the USB cable is fully inserted into both the adapter and the computer's USB port. Try a different USB port or cable.
For further assistance, refer to the detailed support resources available on the ALFA Network weblloc.
6. Especificacions
| Característica | Descripció |
|---|---|
| Chipset | RTL8812AU |
| Estàndards sense fil | IEEE 802.11ac/a/b/g/n |
| Freqüència | 2.4GHz / 5GHz (Dual-Band) |
| Connector RF | RP-SMA female x 2 |
| Antena | 2x 2.4GHz + 5GHz Dual-Band 5dBi dipole antenna |
| Velocitat sense fil | 2.4GHz: up to 300Mbps 5GHz: up to 867Mbps |
| Seguretat sense fils | WEP, WPA, WPA2, WPA mixt, WPS |
| Interfície | USB 3.0 (tipus C) |
| Suport del sistema operatiu | Windows XP, Vista, 7, 8/8.1, 10 Mac OS 10.4 to 10.12 Linux (Kernel 4.x or later) |
| Dimensions (LxWxH) | 5.51 x 5.51 x 2.36 polzades (aprox.) |
| Pes de l'article | 9.1 unces (aprox.) |

Figure 7: Official specification table for the AWUS036ACH adapter.
7. Manteniment
To ensure the longevity and optimal performance of your AWUS036ACH adapter:
- Mantingueu el dispositiu net i lliure de pols. Feu servir un drap suau i sec per netejar-lo.
- Eviteu exposar l'adaptador a temperatures extremes, humitat o llum solar directa.
- No intenteu desmuntar ni reparar el dispositiu vosaltres mateixos. Això podria anul·lar la garantia.
- Guardeu l'adaptador en un lloc fresc i sec quan no l'utilitzeu.
8. Garantia i Suport
For information regarding warranty coverage, technical support, and driver updates, please visit the official ALFA Network website. It is recommended to register your product if required by the manufacturer to ensure full warranty benefits.
Oficial Weblloc: http://www.alfa.com.tw





