TM 1-1510-218-10 3B-61 Figure 3B-22.  Pocket Terminal Enter  the  title  by  pressing  the  appropriate  keys on  the  pocket  terminal.    The  title  may  consist  of  any combination   of   alphanumeric   characters,   spaces   or punctuation  up  to  a  length  of  27  characters  (1  line).   Any of the shaded functions are obtained by pressing the   SHIFT   key   prior   to   pressing   the   key   with   the desired   function.      For   example,   to   obtain   a   space, press and release the  SHIFT  key and then press the key placarded SP.  As the title is entered, a white CSR BLK appears to the right of the last entered character indicating the location where the next character will be inserted.      When   the   title   is   complete,   it   must   be terminated by a carriage return, SHIFT – CR, to make the cursor disappear. (2)   Programming  Checklist  Items.  Enter the checklist item by pressing the appropriate keys on the pocket terminal.  A checklist item may consist of any combination   of  alphanumeric  characters,  spaces,  or punctuation up to a length of 15 lines (450 characters).   If the item is longer than one line long, do not use the carriage return to move from one line to the next.  Use spaces as necessary to move the cursor to the end of the line and to the beginning of the following line.  The carriage  return  should  be  used  only  at  the  end  of  the entire item to make the cursor disappear. (3)   Error    Correction.        Error    correction    is accomplished  with  the  delete  function,  SHIFT  – DEL, on the pocket terminal.  While in insert mode (cursor on   the   screen),   pressing   SHIFT   –   DEL   will   delete individual    characters.        Once    an    item    has    been terminated  with  a  carriage  return  (no  cursor  on  the screen),   SHIFT   –    DELETE    will    delete    the    entire selected item (shown in yellow). c.     Special Functions. Certain special functions  can  be  obtained  on  the  pocket  terminal  by pressing the  CONTROL  key prior to pressing  X,  C, or I.    CONTROL  –  X  erases  everything  (all  checklists) stored  in  nonvolatile  memory  in  the  KGR-358.    After pressing     CONTROL    –    X,    the    message    ERASE ENTIRE   MEMORY   YES/NO   appears   on   the   radar screen.  If  Y-E-S is entered, the radar graphics unit will carry  out  the  command.    If   N-O  or  any  other  key  is pressed, the erase command is aborted.  CONTROL – C on the pocket terminal duplicates the function of the PAGE   button   on   the   radar   graphics   control   panel.   CONTROL  – I   on  the  pocket  terminal  duplicates  the function of the IDX button on the radar graphics control panel. 3B-31.  GROUND PROXIMITY ALTITUDE ADVISORY SYSTEM. The    ground    proximity    altitude    advisory system  will  provide  little,  if  any,  warning for flight into precipitous terrain approaching  a  sheer  wall  if  there  is  little gradually rising terrain before reaching the steep terrain. a.     Description.  The Ground Proximity Altitude Advisory System (GPAAS) is provided to aid the flight crew in terrain avoidance.  Refer to Figure 3B-23. The  GPAAS  is  a  completely  automatic  system (requiring  no  input  from  the  crew)  which  continuously monitors    the    aircraft's    flight    path    at    altitudes    of between   100   and   2000   feet   Above   Ground   Level (AGL). The  GPAAS  computer  processes  the  data  and, when    conditions    warrant,    selects    the    appropriate digitized    voice    advisory/warning    message    from    its memory.    This  message  is  then  announced  over  the pilot's and copilot's audio systems.  If the condition is not  corrected,  the  GPAAS  will  rearm,  and  will  again announce   and   repeat   the   warning   if   the   condition recurs.      The   GPAAS   computer   remains   ready   to announce   a   different   message   during   the   intervals between repetitions.  All messages are disabled below 100 feet AGL. WARNING