1## UWB Multi-device CTS Tests
2
3### General Requirements for test setup calibration
4Two Android UWB devices (DUT and reference device) are needed for these tests.
5
6The devices need to also obtain a valid country code to enable UWB. Country code
7sources used are (any one of them is sufficient):
81. Country code from telephony connection (insert a working SIM card in the
9device)
102. Country code from Wi-Fi access points which support 80211.d (have one or more
11wifi access points in the environment)
123. Country code from location (turn on [location](
13https://support.google.com/android/answer/3467281?sjid=2881239016184571424-NA)
14on your devices and enable [location accuracy](
15https://support.google.com/android/answer/3467281?sjid=2881239016184571424-NA#location_accuracy)).
16