## UWB Multi-device CTS Tests ### General Requirements for test setup calibration Two Android UWB devices (DUT and reference device) are needed for these tests. The devices need to also obtain a valid country code to enable UWB. Country code sources used are (any one of them is sufficient): 1. Country code from telephony connection (insert a working SIM card in the device) 2. Country code from Wi-Fi access points which support 80211.d (have one or more wifi access points in the environment) 3. Country code from location (turn on [location]( https://support.google.com/android/answer/3467281?sjid=2881239016184571424-NA) on your devices and enable [location accuracy]( https://support.google.com/android/answer/3467281?sjid=2881239016184571424-NA#location_accuracy)).