find_khz_freq_from_fid
khz = find_khz_freq_from_fid(data->currfid);
freq = find_khz_freq_from_fid(pst[j].fid);
freq = find_khz_freq_from_fid(fid);
freqs.old = find_khz_freq_from_fid(data->currfid);
freqs.new = find_khz_freq_from_fid(fid);
pol->cur = find_khz_freq_from_fid(data->currfid);