Sony MSW-900 Supplemental Operation Manual page 123

GPS data reception status display
To display the GPS data reception status on the viewfinder, you have to
change settings on the VF DISP 2 page of the OPERATION menu.
2
Set the DISP GPS item to ON.
For detailed information on the status display, see "Displaying the GPS
data reception status on the viewfinder" on page 2-11.
2-25
Chapter 2 Using GPS Data (When Using an HKDW-704)