[ -n "$rts_threshold" ] && append base_cfg "rts_threshold=$rts_threshold" "$N"
append base_cfg "dtim_period=$dtim_period" "$N"
[ "$airtime_mode" -gt 0 ] && append base_cfg "airtime_mode=$airtime_mode" "$N"
[ -n "$rts_threshold" ] && append base_cfg "rts_threshold=$rts_threshold" "$N"
append base_cfg "dtim_period=$dtim_period" "$N"
[ "$airtime_mode" -gt 0 ] && append base_cfg "airtime_mode=$airtime_mode" "$N"