#!/usr/bin/gawk -f
# converts rtl_power format to CSV file with DATE, TIME, FREQ, DB
BEGIN { FS="," }
{
f0=$3;
f1=$4;
fs=$5;
i0=7;
i1=NF;
for(i=i0;i<i1;++i) print $1","$2","(f0+(i-i0)*fs)","$i
}