Auto/Manual Tunning option disappearing from TZT16F display

[NavigationSYS Int]

I have a TZT16F and I noticed that sometimes in the Radar setup menu that the Auto/Manual Tunning option is not in the menu tree. I have tried power cycling the antenna/system, but I cannot seem to get this option to consistently be displayed. What could be/is causing this?

 

[Johnny Electron]

What DRS model?

 

[NavigationSYS Int]

DRS4D-NXT

 

[JJ Neutron]

It sounds like the NavData window is getting closed sometimes. If you swipe in from the left towards the middle of the screen when on the radar screen and select the radar tab

 

[NavigationSYS Int]

It sounds like the NavData window is getting closed sometimes. If you swipe in from the left towards the middle of the screen when on the radar screen and select the radar tab View attachment 7016

I can access the gain, rain, and sea tuning functions consistently. I’m talking about the manual tuning slider that appears when you turn the auto tuning off located when you select [Furuno] >[Settings] >[Radar] located below Antenna height in the menu tree. With the system transmitting [TX] the option was there 1 day. The next time I looked for 2 days and it was gone. After I updated a couple charts it appeared again, and now it’s gone.