2-13. KEYBOARD OPERATION.
The keyboard is used in all SC operations described in this section.
When doing a step in a keyboard procedure, the display responds. It shows either what has been done or what
must be done next. An underline (_) on the display means another step must be done with the keyboard.
For Non-lCOM radio sets, the display goes blank after 7 seconds. If any of the steps are
not done within 7 seconds, the entire procedure must be repeated, Operator may
prevent the display from going blank by holding down the last key pressed.
The displays shown in the following procedures are examples only. The actual numbers seen on a display will dif-
fer from those shown in the procedure. Any letters, however, must match those shown in the procedures.
2-14. LOADING A FREQUENCY (MAN, CUE, SC).
Manual, Cue, or single channel frequencies can be loaded in the range 30-87.975 MHz, in 0.025 MHz incre-
ments. The frequencies are entered using the keyboard buttons.
Each number appears in the display as it is
entered. The frequencv entered must have five digits. Numbers that can be used are only those shown on the
following figure. if any- other numbers are entered, the RT and the display will not respond.