RCU-015 is a palm control unit consisting of the trackball module and dedicated function keys.
It can be used as alternate to the full keyboard but unlike the full keyboard unit the track ball lacks the analog EBL and VRM rotary controls and other push keys.
Power button turns on and off the unit, dedicated function keys are used to perform menu shortcuts while track ball moves the cursor while the menu selector is used to choose menu items.
The menu selector consists of right and left buttons and a wheel for easy navigation.
For full control the keyboard is used.
Using the trackball and the menu selector, the user can perform control operations just as with the full keyboard control unit RCU-014. This includes adjusting the EBL and VRM rotary controls, silencing audible alarms, change from transmission to standby mode, adjust brilliance of display, choose radar range, open main menu, display target data and cancel target tracking, adjust receiver sensitivity among others.
