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3.2.2    Basic Menu Operation 
 
 
To open the menu: 
 
Press [RADAR MENU] key. 
 
 
To close the menu: 
 
Press [RADAR MENU] key. 
Alternatively, hold down [0] key until the menu closes. 
* Software button  ղ  located at the operation/message area in Section 2.3.9 also available to switch 
between ON and OFF. 
 
 
To move to a lower level of the menu: 
 
The menu is in hierarchical structure.    Press the numeric keys [1]-[9] corresponding to the desired 
menu item number.    Control will move to the lower level. 
Alternatively, place the cursor over the item and then press [ENT] key. 
  >    is shown at the right end of a menu item having a lower level. 
 
 
To move to a higher level of the menu: 
 
Press [0] key while the menu is open.    Control will return to the higher level from the lower level. 
Alternatively, place the cursor over the 0.EXIT item and then press [ENT] key. 
 
 
To determine an item: 
 
Press the numeric keys [1]-[9] corresponding to the desired item number.    The selected item will be 
displayed.    Alternatively, place the cursor over the item you want to change, and then press [ENT] 
key. 
 
 
To determine the selected item: 
 
Press the numeric keys [1]-[9] corresponding to the selected item number.    Alternatively, place the 
cursor over the selected item and then press [ENT] key.    If you do not change the setting of the 
selected item, press [CLR/INFO] key.