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.TH INPUT 5 "24th October 2000" "Yagi version 1.16"
.SH NAME
input \- input data file format
.SH DESCRIPTION
This manual page describes the output format of the file created by the
.I Yagi-Uda project
.IR input
or
.IR first
programs. The file is an ASCII file, so can be edited manually
if required. It is read by 
.IR yagi
or 
.IR optimise. 
The program
.IR optimise
also creates the same file format.
.ul 11
.nf

NOTES 
FREQUENCY 
MIN_FREQUENCY 
MAX_FREQUENCY 
STEP_FREQUENCY
ELEMENTS 
DRIVEN 
PARASITIC 
ANGULAR_STEP   
DATA_DRIVEN 
DATA_PARASITIC

.nf
The 
.IR #
is used as a comment.

A typical file, for an antenna designed for the 2m amateur band (144-146
MHz) might be as shown below. Note:
1) Reflector is at position 0.0
2) All elements lengths/positions are in m.

.nf
NOTES This line can be up to 400 characters.
FREQUENCY 145.000000
MIN_FREQUENCY 144.000000
MAX_FREQUENCY 146.000000
STEP_FREQUENCY 0.100000
ELEMENTS 10
DRIVEN 1
PARASITIC 9
ANGULAR_STEP   180.000000
#DATA_DRIVEN x y length  diameter voltage phase
DATA_DRIVEN  0.30993 0.000000 1.002492 0.0063000000000000 1.000000 0.000000                           
# DATA_PARASITIC x y length  diameter
DATA_PARASITIC
   0.00000    0.00000    1.01902    0.00630                               
   0.49859    0.00000    0.95551    0.00630                               
   1.07338    0.00000    0.93595    0.00630                               
   1.81020    0.00000    0.92050    0.00630                               
   2.58152    0.00000    0.91322    0.00630                               
   3.30390    0.00000    0.91243    0.00630                               
   4.03692    0.00000    0.90423    0.00630                               
   4.64108    0.00000    0.89081    0.00630                               
   5.37418    0.00000    0.83912    0.00630                               

.SH FILES

	filename                            ASCII description of antenna.
	filename.out                        binary file

.SH SEE ALSO
 
yagi(1), output(1), input(1), optimise(1), first(1) and yagi(5).

.SH AUTHORS

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