                               Command : RADAR

 SYNTAX:
   [##:##] Command: radar <SHIPS|SECTS> [no] [filters]

The radar command bears some resemblance to modern high-resolution radar.   It
has a circular range dependent upon its efficiency.

To run land radar type:
   [##:##] Command: radar <SECTS>
where <SECTS> must be the sector where the radar station resides, or  an  area
that contains one or more radar stations.

The program will respond with the station's  efficiency  and  range  and  then
display the area.

What is displayed is dependent upon the range.  Sectors within half the  range
are  displayed  with  their  sector  designations.   Similarly within half the
range, ships, tanks and trains are displayed, as long as they are in  a  rela-
tively  unimproved  sector (at sea, in harbors, on highways or bridgespans, or
in wilderness or wasteland).   Balloons,  as  long  as  they  are  aloft,  are
displayed over any sector; on the ground, balloons do not show up.  Submarines

                               Command : RADAR

are displayed only if they are on the surface.

Sectors at greater distances are indicated by a '?' if they are  inhabited  by
another country.

A 100% radar station in a country with infinite technology on a clear day  has
a  range  of 8.  The range is linearly related to efficiency; thus a 50% radar
station can see half as far as a 100% radar station.  The range is related  to
technology  level  in  the usual way, i.e., it varies linearly with technology
level as indicated in the nation report; see info nation and  info  technology
for details.

Satellites and other spacecraft will appear on the map as a '$'.

You have some control over exactly what appears on the radar output by  speci-
fying filter options.  You can specify one or more of the following filters:

                               Command : RADAR

        satellites   planes
        ships        tanks
        trains       balloons
        land         vehicles
        shuttles

If, for example, you type:

   [##:##] Command: radar 5,1 ships tanks

you would see a radar map with no land features and showing ONLY ship and tank
locations.  If you were to specify

   [##:##] Command: radar 5,1 vehicles

you would see all ships, tanks, trains, and balloons, but once again  no  ter-
rain.

                               Command : RADAR

You can eliminate specific items from the radar plot by specifying `no' before
the filter name.  For example,

   [##:##] Command: radar 5,1 no vehicles planes

removes all ship, shuttle, train, tank, balloon, and  plane  images  from  the
map, and leaves only terrain and satellites.

WARNING!  Land radar cannot spot  submerged  submarines  or  balloons  on  the
ground.

FURTHER WARNING!  Even worse, should your cunning enemy move troops  right  to
your doorstop and leave the sector designated a wilderness it would show up on
your very efficient radar as '-'.  Thus you would never know he was  there....
Well, almost never.

An example of land radar:
   [##:##] Command: radar 5,1

                               Command : RADAR

   5,1 efficiency 100%, max range 6
          . a a - ^ ? ?
         T k o ! - ^ ? ?
        a h j a ^ ^ ^ ^ ^
       h . a w a ^ - ? a ?
      . . a m a b f a ^ ^ -
     . . m c * a a - ^ - ^ -
    . - . a + . 0 a - - ^ - .
     - ^ ^ a + ) ^ a - - ^ .
      - - a m + a f . . - ^
       ^ a - a + a ^ - - -
        - ^ - - ^ - - - -
         - ^ - - - - - -
          - - - - - - -

                               Command : RADAR

To run naval radar type:
   [##:##] Command: radar <SHIP/FLEET>
where <SHIP/FLEET> is the number of a ship or a fleet designation.

Sea radar is highly dependent upon what kind of ship you have  and  what  kind
the opponent has.  (e.g., Battleships can see battleships far away but fishing
boats must be close together to see each other).

The maximum distance at which ship A can see ship B is dependent on  two  fac-
tors: the spying ability of ship A, and the visibility of ship B.  Battleships
have sophisticated communications equipment which give them a  maximum  spying
range  of  6 while fishing boats, having little such equipment, have a maximum
range of 2.  This factor is shown in a table  in  info  ship-types  under  the
heading spy.  On the other hand, the ships vary in size and consequently, vary
in visibility.  Battleships, oil derricks, and carriers  are  the  easiest  to
see;  next  come cargo ships, heavy cruisers and tenders, and so on.  See info
ship-types for a chart.

Ship A will see ship B if the distance between them is less than:

                               Command : RADAR

                spy factor of ship A * visibility of ship B
   efficiency * ------------------------------------------- * technology factor
                                  20

Note that, although subs can not be found via radar, destroyers  automatically
use  sonar so they can see subs.  Destroyer A will see submarine B if the dis-
tance between them is less than:

                spy factor of ship A * visibility of ship B
   efficiency * ------------------------------------------- * technology factor
                                  20

An example of ship radar:
   [##:##] Command: radar 50

                               Command : RADAR

   patrol boat #50 at -1, -3 efficiency 100%, max range 4
        . . . . .
       . . . . - -
      . . - . a a -
     . . . T k o ! -
    . - F a P j a ^ ^
     . . - . a w a ^
      . . . a m a b
       . . m c * a
        - . a + .

See also : census, map, nation, ship-types, technology

