⟩ Which up-link/ down-link spectrum is allocated to following? a. GSM - 900 b. DCS - 1800
★ GSM - 900: Up-link spectrum is 890.2-914.8 and down-link spectrum is 935.2-959.8
★ DCS - 1800: Up-link spectrum is 1710.2-1784.8, and down-link spectrum is 1805.2-1879.8