By Ry Crozier on Jun 1, 2021 4:14PM But TV operators are cautious. Optus has backed a government plan that would create a repeat of the “digital dividend” spectrum auctions a decade ago, where spectrum used in TV broadcasting was refarmed for cellular use. In a media reform ‘green paper’ at the end of last year, the government proposed freeing up spectrum in the 600 MHz band and reallocating it for other uses. It noted at the time that the spectrum could be “attractive to mobile network operators as a means to provide wide-area and inbuilding coverage across their networks.” Industry submissions to the green paper process have slowly leaked out over the past week, with Optus providing a high-level view of its submission on Tuesday afternoon.