Provided by: yagiuda_1.19-7_i386 bug

NAME

       yagi - Yagi-Uda project antenna current calculator

SYNOPSIS

       yagi [ - dhps ] filename

DESCRIPTION

       The  program  yagi is one of a number of executable programs that forms
       part of a set of programs, collectively known as the Yagi-Uda project ,
       which were designed for analysis and optimisation of Yagi-Uda antennas.
       yagi calculates the currents at the centre of each element  at  one  or
       more frequencies, as specified in the input file.

AVAILABILITY

OPTIONS

       -d     Display  element currents. When this option is used, a bar graph
              with up to  70  stars  (*)  is  used  to  display  the  absolute
              magnitude of the element currents. The element with the greatest
              element current has 70 *'s,  all  others  have  a  corresponding
              smaller  number,  depending  on  the their relative current. The
              element current, normallised to the maximum, is also shown as  a
              4 digit floating point number.

       -h     Print a help message.

       -p     Print  the  Z  matrix.  The  Z  matrix  is the impedance matrix,
              showing the self impedance of the elements on the  diagonal  and
              the mutual impedance off the diagonal.

       -s     Suppress  all  diagnostic  output. By default, the program print
              the percentage of the job completed.

        filename
              is the name of the file containing the antenna  description.  It
              is expected to be in a format created by either input or first -
              two other programs in the Yagi-Uda project.  This  is  an  ASCII
              text   file.   The  antenna  currents  are  written  to  a  file
              filename.out which is a binary file. It is not  intended  to  be
              read by humans.

Limitations

       I'm  not aware of any limitations, apart from that filenames, including
       full path, can't exceed 90 characters.

FILES

       filename.out       Binary data file

SEE ALSO

       first(1),  input(1),  output(1),   optimise(1),   first(5),   input(5),
       output(5) and optimise(5).

PLATFORMS

       Both  DOS  and  Unix  versions  have  been  built.  The  DOS version as
       distributed requires a 386 PC with a 387 maths coprocessor.

BUGS

       Bugs should be reported to david.kirkby@onetel.net.  Bugs tend actually
       to  be  fixed  if  they  can  be isolated, so it is in your interest to
       report them in such a way that they can be easily reproduced.   If  the
       input  file  is  edited  manually  and  done  incorrectly, there can be
       unpredictable results.

AUTHORS

       Dr.  David  Kirkby  G8WRB  (david.kirkby@onetel.net),  with  help  with
       converting to DOS from Dr. Joe Mack NA3T (mack@fcrfv2.ncifcrf.gov).