Qualcomm Atheros AR9271 TxPower Up

Introduction

The Qualcomm Atheros AR9271 is a popular wireless chipset commonly used in network adapters. In this guide, we will explore how to increase the TxPower of the AR9271 chipset, which allows for a stronger transmission signal.

Requirements

To follow this guide, you need:

• A computer running a Linux distribution (such as Ubuntu)
• Administrative/root access to the system
• A Qualcomm Atheros AR9271-based network adapter

Steps

1. Install the necessary software:

   sudo apt-get update
   sudo apt-get install iw
   

2. Verify that the AR9271 chipset is detected:

   lsusb
   

   The output should contain a line with the ID 0cf3:9271.

3. Find the interface name associated with the AR9271 adapter:

   iwconfig
   

   Look for the wireless adapter section, which should include the interface name (wlanX).

4. Set the TxPower value for the AR9271 chipset:

   sudo iw dev [interface name] set txpower fixed [power in dBm]
   

   Replace [interface name] with the name from the previous step (e.g., wlan0), and [power in dBm] with the desired transmission power (e.g., 27 for 27 dBm).

5. Verify the new TxPower value:

   iw dev [interface name] get txpower
   

   The output should show the updated TxPower value.

Conclusion

By following these steps, you can increase the TxPower of your Qualcomm Atheros AR9271 chipset, which can result in a stronger transmission signal. Make sure to comply with legal regulations and consider the hardware limitations of your device before setting a high power value.