market freq_block round_num bid_amt bidder_num fcc_acct date time net_bid_amt sort_col_1 sort_col_2 BEA152 D 141 19000.00 3656 0181850341 10/20/98 18:06:54 12350.00 3 759 BEA170 E 141 49000.00 3606 0182307122 10/20/98 18:12:25 31850.00 3 850