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World of Ham Radio 1997
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WOHR97_AmSoft_(1997-02-01).iso
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antenna
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ant_17
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prog
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set_up.txt
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1997-02-01
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These notes will help you in setting up and using your
antenna modeling software. Please read them carefully.
You must select the type of graphics supported on your
computer and create the file HDWRE.CFG by copying one of the
graphics file from the following list into HDWRE.CFG:
PC Video Mode File to Copy into HDWRE.CFG
Text mode VIDEO0.CFG
320x200 medium resolution CGA,
4 colors; text width 40. VIDEO1.CFG
640x200 high resolution CGA, 2
colors text width 80. 720x348
HGC monochrome graphics. VIDEO2.CFG
720x348 HGC monochrome graphics. VIDEO3.CFG
320x200 EGA medium resolution,
16 colors. VIDEO7.CFG
640x200 EGA high resolution,
16 colors. VIDEO8.CFG
640x350 EGA enhanced resolution
with enhanced display (4 or 16
colors, depending on memory). VIDEO9.CFG
640x350 EGA high resolution using
monochrome monitor. VIDEO10.CFG
640x480 VGA or MCGA high resolution,
80x30 text, monochrome mode. Use for
black/white on IBM PS/2 systems. VIDEO11.CFG
640x480 VGA high resolution, 80x30
text, 16 colors. Use on IBM PS/2
models 50, 60 and 80. VIDEO12.CFG
HGC - Hercules Graphics; CGA - Color Graphics Adapter;
EGA - Enhanced Graphics Adapter; VGA - Video Graphics Array
MCGA - Multicolor Graphics Array
Note: The demo distribution disk contains the file HDWRE.CFG
copied from VIDEO12.CFG (high resolution VGA). Change
it as required for your system.
After selecting the appropriate VIDEO*.CFG file from
the list, create the file HDWRE.CFG using the DOS COPY
command; for example, COPY VIDEO3.CFG HDWRE.CFG sets up
Hercules monochrome graphics. If you encounter a problem,
it is almost certain that you selected the wrong video mode,
in which case you should try copying another VIDEO*.CFG file
into HDWRE.CFG. Whenever you change video modes, you must
recreate HDWRE.CFG using this procedure.
Be sure that HDWRE.CFG is located in the same working
directory as your programs. The programs will not run
unless HDWRE.CFG is contained in the working directory and
is properly configured for your system. If your computer
supports only monochrome text, the programs will terminate
execution with an error condition, but they will create the
ASCII output file XYPLOT6.DAT (or one using the same format)
that contains tabulated results. It is advisable to write
protect the executables (EXE extension) and HDWRE.CFG after
installation. This prevents accidental deletion of an
important file. You can do this by using the external DOS
command ATTRIB to set the file attribute to +R. Do NOT
write protect XYPLOT6.DAT!
If you wish to execute programs from a floppy diskette,
be sure that the diskette contains HDWRE.CFG in the working
directory. As a general rule, 50 to 75 KB of space is more
than adequate to create the data file XYPLOT6.DAT; but,
depending on the specific case, more space may be needed.
If you encounter errors from from diskette, check all file
sizes to be sure that enough storage is available.
Hints and Tips
The programs prompt you for all required input data.
If you enter an illegal value, for example, zero in a
calculation that will be singular (divide by zero), the
program flags the incorrect data by beeping and repeating
the prompt. Just reenter correct data. If you are
interested in values close to an illegal input, enter a
slightly different number. For example, instead of entering
"0", try something very small, such as "0.000001". Also,
note that these programs use 299.8 megameters/sec as the
velocity of light, which is more accurate than the 300
megameters/sec that is commonly used.
When several numbers are requested, each one should be
separated by a space or a comma. Enter the entire sequence
of requested data before pressing RETURN, which terminates
data entry.
Plotting Curves
You can plot screen plots on your printer using the
SHIFT PrtSc keys. Before printing, you must load the DOS
GRAPHICS.COM external command file to set up the screen for
printing. Refer to your DOS Reference Manual for details on
using GRAPHICS.COM. If you encounter difficulty in printing
a plot, the problem is almost certainly an incorrect printer
mode (in which case you should carefully set up the printer
while referring to its User's Manual).
An flexible alternative approach to generating plots is
using a spreadsheet. All programs use the same ASCII output
file format. By using the "File-Import-Value" option
available on most spreadsheets, you can read an entire data
file, including header data, into numerical or ASCII values,
as appropriate, in a spreadsheet. Your data can then be
plotted in a variety of ways using the spreadsheet's
plotting utilities.
Users who don't have a spreadsheet program may wish to
contact TRIUS, Inc., 231 Sutton Street, Suite 2D-3, P. O.
Box 249, North Andover, MA 01845-0249 Voice (508) 794-
9377, FAX (508) 688-6312, BBS (508) 794-0762,
1200/2400,N,8,1. TRIUS supplies an inexpensive shareware
spreadsheet with excellent capabilities (AS-EASY-AS, Ver.
5). TRIUS also supplies a useful CAD program called DRAFT
CHOICE. Please note that there is no relationship between
Phadean and TRIUS and that this information is provided only
for your convenience.