TM 1-1510-225-10 3A-70 (d)   OK? ENTER.    If the coordinates are correct, press the  ENTER key to accept the waypoint. (3)   Offset   Waypoint   1/1   Page.      Refer   to Figure   3A -53.            An    offset    waypoint    is    a    set    of coordinates    determined    by    a    selected    radial    and distance    from    a    previously    defined    or    database waypoint,  called  a  parent  waypoint.    An  (*)  following the parent waypoint denotes an offset waypoint.  More than  one  offset  waypoint  is  allowed  from  one  parent, using {*[,{*1[, {*A1[, etc., as identifying notation. Figure 3A-53.  Offset Waypoint 1/1 Page NOTE The offset waypoint uses station declination,   if   available,   or   it   uses   the calculated magnetic variation of the parent waypoint.      All   points   defined   by   a   VHF navaid in the national/international airspace   system   are   based   on   the   VHF navaid    station    declination.        Since    the magnetic  variation  and  station  declination may not be the same at a given navaid, the calculated position and the defined position may differ. (a)   WAYPOINT.    The  WAYPOINT  field displays the parent waypoint identifier followed by an *.   When  an  offset  waypoint identifier is entered and the waypoint  has  not  been  previously  defined,  the  RAD, DIS,   and   POS   fields   are   all   dashed.      When   the waypoint has been previously defined, the coordinates will  be  displayed  and  the  radial  and  distance  values will be computed  based  on  the  location  of  the  parent waypoint.        If    the    parent    waypoint    is    an    airport continuation    record,    the    airport    identifier    will    be displayed    immediately    below    the    offset    waypoint identifier.        If    a    parent    waypoint    has    a    duplicate identifier   in   the   database,   the   country   code   will   be displayed    immediately    below    the    offset    waypoint identifier. (b)   RAD.   The radial (RAD) field displays the  radial  from  the  parent  waypoint  along  which  the offset  is  established.    This  entry  will  be  annunciated with  a  T  if  a  true  heading  input  is  received  or  if  the parent waypoint is above N 70or S 60 latitude. (c)   DIS.   This field displays the distance in nautical miles from the parent waypoint to the offset waypoint  (399.9 nm maximum). (d)   POS. This field displays the computed  offset  waypoint  coordinates  based  on  the pilot    entered    radial    and    distance    from    the    parent waypoint. (e)   OK?     ENTER.          If     the     waypoint coordinates are correct, press the ENTER key. (4)   Special Waypoint.  Refer to Figure 3A -54.    The   special   waypoints   #1   and   #OFF   are   defined automatically by the system based on aircraft position. Figure 3A-54.  Special Waypoint Page (a)   #1.        Special    waypoint    #1    is    the position  at  which  the  POSITION  FIX  page  was  last accessed.  Special waypoint #1 can only be defined by the system. (b)   Power  Off  Waypoint.    The  power off waypoint  is  a  set  of  coordinates  retrieved  as  the  last known position when power is lost en route.  This page should be accessed by inserting #OFF into the IDENT field on the POSITION FIX page after power has been restored and initialization en route has been performed. 1   WAYPOINT   #OFF   –   This   is   the power off waypoint designator.