The following sections describe the hidden service menus in the 8U, 9C, and 9Z series radios. These menus can be extremely useful and allow you to calibrate/modify/repair your radio without having to send it to the manufacturer (who will just end up using the same menus).
Be advised: This information was not obtained from the radio manufacturer - it was learned through experimentation. We've done our best to make sure all information is accurate; if you find something that is not correct, or that you think needs clarification, please contact us and we'll make the change. Please note that some menus allow you to completely erase all of your model data, so pay careful attention to what you're doing. We cannot, for any reason, take responsibility for any modifications made to your radio using the hidden service menus. Edit settings at your own risk!
Menus for each radio are described separately. Please refer to the HHMOD256K instructions for details on accessing different menu modes with our 256K Memory Module.
Futaba 8U Series Service Menus