Install wireless-regdb by entering the following commands in the terminal:
sudo apt update sudo apt install wireless-regdb
Description:
wireless regulatory database
This package contains the wireless regulatory database used by the Central Regulatory Database Agent (CRDA) to configure wireless devices to operate within the radio spectrum allowed in the local jurisdiction. . This regulatory information is provided with no warranty either expressed or implied. Only Linux drivers which use cfg80211 framework can make use of the regulatory database and CRDA.
Homepage: http://wireless.kernel.org/en/developers/Regulatory/#The_regulatory_database
Version: 2016.06.10-0ubuntu1
Section: net