The KCC regulatory domain is used only in Korea. wifi.country-code. Wi-Fi devices are restricted to certain frequencies and power levels. So here’s a list of the maximum allowed transmission power (EIRP) per country. It was established on February 29, 2008. The TELEC regulatory domain is used only in Japan. You can check the country (regulatory domain) your Wi-Fi card thinks it must conform to with iw reg get. CDRouter will automatically query the system as needed to determine the list of valid, supported wireless channels based on the configured regulatory domain. In the USA, their regulatory domain allows you to use a power output of up to 30dBm on 2.4GHz networks, in contrast to the UK where the limit is only 20dBm. Table 1 displays the available channels, channel frequency, and regulatory domains. 4. Windows does not support ssh on the command line, but you can use a free SSH client like Putty to connect to your Pi. "World regulatory domain updated:" 2. Once you are logged in, you can usually find a list of devices connected to your network under “DHCP”. 1. This can limit available channels and transmit power. Possible values: see this list. Upon a regulatory domain change the kernel sends a udev change event for the regulatory platform. Korea Communications Commission (KCC) KCC is a South Korean media regulation agency modeled after the Federal Communications Commission of the United States of America. How to set the country code for enabling WiFi on Raspberry Pi 3 Model B+ and fix ‘WiFi country not set’ For example, I think that NetworkManager should have this option. We embrace proper regulatory compliance in the Linux kernel by making it part of cfg80211, used by new wireless drivers.We maintain a thorough and flexible regulatory database in userspace and provide a Central Regulatory Domain Agent (CRDA), a userspace agent, which can be triggered to update the kernel wireless core's definition of the regulatory permissions for a specific country. The client devices try to find out where they are and configure themselves accordingly. Set as needed to indicate country in which device is operating. Regulatory domain changes are triggered by the wireless kernel subsystem (upon initialization and on reception of country IEs), wireless drivers, or userspace (see iw ). ntpServers (string) A space-separated list of NTP servers to use for time synchronization. This is in accordance with the FCC part 15 country code selection knowledge base … country (string) Two-letter country code for the country in which the device is operating. Table 1: Channels for IEEE 802.11b and 802.11g Channel Number Channel Center Frequency (MHz) Regulatory Domain 1 2412 FCC/WORLD/TELEC1 1.Regulatory domains are FFC for United States, TELEC for Japan, and WORLD for all other countries. Country code as specified by ISO/IEC 3166-1, used to set regulatory domain. 2 2417 FCC/WORLD/TELEC This is used for setting the WiFi regulatory domain, and you should check the WiFi device driver for a list of supported country codes. While these are not specifically named, this includes 802.11ac, 802.11n, 802.11g and the collections such as 802.11abgn. In order to achieve this devices always respect their programmed regulatory domain and a country code selection will only enhance regulatory restrictions. If in doubt, double check your hostapd-phy.conf to make sure it contains the following values, and that your country code is set: country_code =DE ieee80211n = 1 ieee80211d = 1 ieee80211h = 1 hw_mode =a Running the script with no arguments will display the current regulatory domain of the system, expressed as a two character ISP 3166-1 alpha-2 country code: When it comes to the ultimate solution, I think we won't have one until the tool you're using for managing the WiFi can handle it. Note that the a and b bands means the 802.11/a (5GHz) and 802.11/b (2.4GHz) respectively. "Regulatory domain changed to country: GB" One is "update", the other is "change". My guess is it's just fine.