FCC Chairman Kevin Martin has proposed that spectrum for public-safety usage be put up again for auction under rules that would be more lenient than those that stifled a bid earlier this year for the D block airwaves, reports Information Week. The FCC is expected to take up at its September 25 meeting Martin’s proposal that the entire D block be eligible for sale for US$750 million, well below the US$1.3 billion reserve that had been set for the D block earlier this year in the sale of 700 MHz airwaves.