NAME
Azimuth - a program to view azimuth patterns
SYNOPSIS
azimuth [NEC2outputfile]
DESCRIPTION
Azimuth reads files produced by NEC2 and provides three graphical depictions of that data, as well as a ``fact sheet'' summary. The default NEC2outputfile is ``fort.2''.
The three ``plots'' of output data include an ARRL-scaled polar graph, a linearly-scaled polar graph, and a cartesian graph of the same data.
If the minimum gain of an antenna is below -60 db, the program assumes a minimum gain of -60 db for the purposes of scaling the graphs properly.
In order to use azimuth you must have NEC2 calculate certain data. The ``RP card'' for NEC2 input must be of this form:
RP 0 1 361 1001 75.0 0.0 0.0 1.0 10000.0 0.00E+00
This will insure that azimuth has the data it expects.
A sample data file which describes a rhombic is included with azimuth, and is reproduced here also.
CM NEC Input File for Rhombic CE GW 1 10 0.00000 0.00000 10.00000 17.30000 10.00000 10.00000 0.01000 GW 2 10 0.00000 0.00000 10.00000 17.30000 -10.00000 10.00000 0.01000 GW 3 10 17.30000 10.00000 10.00000 34.60000 0.00000 10.00000 0.01000 GW 4 10 17.30000 -10.00000 10.00000 34.60000 0.00000 10.00000 0.01000 GE 1 GN 1 0 0 0 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 FR 0 1 0 0 3.00E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 EX 0 1 1 0 1.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 EX 0 2 1 0 -1.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 LD 0 3 10 10 2.90E+02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 LD 0 4 10 10 2.90E+02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 RP 0 1 361 1001 75.0 0.0 0.0 1.0 10000.0 0.00E+00 EN
A NEC2outputfile that results from this input file is included in the jiffy-perl-tk example directory as "fort.2". A file called "azimuthcard" is also included. That file contains only an appropriate "RP card".
Azimuth is part of the W5GFE Antenna Toolkit. It is released under terms of the GNU Public License.
AUTHOR
Bill Walker, W5GFE, [email protected]