It took over responsibility for aerial surveillance and ground-controlled interception from the Royal Air Force's No. 487 Signals Unit on 1 December.
ɪt tˈʊk ˌoʊvɚ ɹᵻspˌɑːnsəbˈɪlᵻɾi fɔːɹ ˈɛɹɪəl sɚvˈeɪləns ænd ɡɹˈaʊndkəntɹˈoʊld ˌɪntɚsˈɛpʃən fɹʌmðə ɹˈɔɪəl ˈɛɹ fˈoːɹsᵻz nˈoʊ. fˈoːɹhˈʌndɹɪd ˈeɪɾi sˈɛvən sˈɪɡnəlz jˈuːnɪt ˌɔn wˈʌn dᵻsˈɛmbɚ.