


OUTPUT(1)                USER COMMANDS                  OUTPUT(1)



NAME
     output - YagiUda project antenna display program

SYNOPSIS
     output [ - hs ] [ -ZZo ] filename

DESCRIPTION
     The program output 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  YagiUda  antennas.  output  calculates the
     gain, FB ratio, input impedance etc etc of an  antenna  that
     was  described by the program input or first and has had the
     element currents calculated with the program yagi  The  data
     about  the forward gain, VSWR, FB ratio, input impedance etc
     is written to a file filename.dat Angular data,  giving  the
     variation  of  gain  with  theta  and phi is put into a file
     filename.gain

OPTIONS
     -h   Print a help message.

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

     -ZZo Zo is the characteristic impedance used when  calculat-
          ing  the  vswr.  By  default  it's  50 Ohms, but can be
          changed to any real, positive value.


      filename
          is the name of the file containing the antenna descrip-
          tion. It is expected to be in a format created by input
          or first - two other programs in the  YagiUda  project.
          The   is   also   expected   to  exist  a  binary  file
          filename.out created by typing yagi filename

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

FILES
     filename            ASCII  file  with  antenna  description.
     filename.out         Binary  data  file,  created  by  yagi.
     filename.dat       ASCII file with  gain,  FB  ratio,  input
     impedance  etc.   filename.gain      ASCII file with angular
     dependence of gain.

SEE ALSO
     first(1), input(1), yagi(1), optimise(1).





Version 1.09      Last change: Fri Dec  2 1994                  1






OUTPUT(1)                USER COMMANDS                  OUTPUT(1)



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

BUGS
     Bugs should be reported  to  davek@medphys.ucl.ac.uk.   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.  The program gives errors if element
     lengths are well away from a half-wave (by a factor  of  ~3)
     due  to  a breakdown in the equations.  If the input file is
     edited  manually  and  done  incorrectly,   there   can   be
     unpredictable results.


COPYING
     This program is public domain,  but 4 of the source routines
     are copyrighted.  In order to build, you will need to obtain
     the routines cisi.c, complex.c, lubksb.c  and  ludcmp.c  for
     the  book 'Numerical Recipes in C', 2nd edition, by Press et
     al, Cambridge University Press, (1992).  You  may  copy  the
     sources (less those 4) and executables to anyone you wish in
     the usual unix tradition, as long as  you  let  people  know
     they  can get the sources and don't make any profit from it.
     You may charge a *small* distribution fee.



AUTHORS
     Dave Kirkby G8WRB (davek@medphys.ucl.ac.uk).  with help with
     converting     to     DOS     from     Joe     Mack     NA3T
     (mack@fcrfv2.ncifcrf.gov)






















Version 1.09      Last change: Fri Dec  2 1994                  2



