Is there an automatic tuning unit (ATU) option?
Yes, there is an optional internal ATU that will match your unbalanced antenna from 160 to 6 meters at 100 watts. It is not the same as the one used in the SDR-1000. It has a higher power rating and more memories. It is available for order on the web site and is a field installable upgrade. For more information, see the FLEX-5000 ATU FAQ located on this page.