PRODUCT ANNOUNCEMENT: NEC-Graph/Windows

PRODUCT ANNOUNCEMENT: NECGraph-Windows (by Scott Townley, NX7U)

NECGraph-Windows is a Windows-based program for producing
publication-quality graphical output from your NEC (Numerical
Electromagnetics Code) program.

NECGraph was originally written for my own personal use after having
suffered through many years of hand-plotting tables of text or importing
hand-modified output files into popular spreadsheets with almost no true
scientific graphics capabilities.

NECGraph isn't NEC bundled into the Windows environment. You will need to
use your own NEC executable to generate the output files that NECGraph
utilizes. This approach does have advantages: (1) You can continue to use
your customized/modified NEC sources and executables, (2) You don't need to
spend money on an executable that you may already have or can download for
free, and (3) I can spend all my time on the graphical aspects of the program.

NECGraph will automatically parse the text-based output files from all
openly-available versions of NEC (including NEC-2, NEC-NEEDS version from
ACES, the PC-compatible NECs on /pub/ra/rander/NEC at netcom.com, and NEC-4
from LLNL) and generates almost any plot of interest. Features include:

*NEC Outputs Plotted*

...Far Field Patterns
...Near Electric and Magnetic Field Patterns
...Impedance and Admittance versus Frequency
...Derived Impedance quantities (Return Loss, VSWR) versus Frequency

*Types of Plots Available*

...X-Y (rectilinear)
...Polar
...Smith Chart (impedance and admittance coordinates)

*Features*

...Multiple-frequency plots of all radiation patterns; pick and choose which
frequencies to plot.
...Plot Impedance or Admittance versus Frequency on either rectilinear or
Smith coordinates. Plot impedances of antenna systems with multiple inputs
on one chart (useful for array antennas)
...User-definable VSWR circles overlaid on Smith chart plots
...User-definable plot scaling (dynamic range, size of divisions, log axes),
as well as normalized plots
...Automatic Legend generation showing frequency, constant parameters (like
angles, distances, etc.), and antenna environment. A plot has *all* the
information needed to interpret your results
...Cut and paste plots to any Windows-based application
...Print plots to any Windows printer/plotter.
...Save plots to disk in .WMF (Windows Metafile) format

*Some Upcoming Features*

...Three-dimensional plots for higher-directivity antenna designs
...Plots available for Receiving Antenna Patterns, Ground Wave Patterns (RP1
card), and Maximum Coupling Impedances (CP card).

...Additionally, NECGraph can be modified to parse your custom program
output (e.g., NEC-BSC, etc.). Contact the author for arrangements.

Here's the deal:

NECGraph-Windows is available *only* directly from the author for $40 U.S.
(international will be higher depending on duties and postage--contact the
author for final pricing). Cashier's Check/Personal Check/Money Order all
acceptable; please no Credit Card orders. Note that AZ Sales Tax will be
collected for shipments to Arizona addresses. Quantity discounts and site
licensing is available; contact the author for details.

For your money you get:

1. NECGraph-Windows with on-disk documentation
2. Unlimited support and bug-fixes
3. Program upgrades, as they become available, for $10 (domestic). Plus, if
you suggest an improvement that's incorporated in an official release, you
get that upgrade for FREE.

For answers to questions, ordering, etc., contact the author using any of
the following methods:

Scott Townley NX7U

e-mail (fastest method):
nx7u_at_primenet.com

fax (next fastest):
(602)813-7268

snail mail (slowest):
1101 N. Gilbert Rd. #308
Gilbert, AZ 85234

Scott Townley
nx7u_at_primenet.com
Received on Sat Jul 29 1995 - 21:24:00 EDT