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1995-01-31
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HamFTZ, (c) by Cedric Baechler, HB9HFN, 1994-1995
Ionospheric propagation predictions
for PC running DOS
v0.3 beta
This file contains a (small) documentation for the program HamFTZ
A. Overview
B. Copyright
C. Installation
D. Running the program
E. Miscellaneous
F. Abbrevations
G. How to write to the author
H. References
A. Overview
HamFTZ is a powerful DOS program that can help the radio operator to make
some propagation predictions to any location on the earth. It is based on
the original program MINIFTZ4.3 and will calculate the MUF, FOT, LUF and
signal strength between two points. I've written this program for my own
use but I think it could be usefull to any ham in the world. The method used
to predict the signal strength is very accurate and overall it works better
than other programs like MINIMUF, MINIPROP or MICROMUF.
I have translated the BASIC sources (MINIFTZ4.BAS) in C and made a lot of
modifications. HamFTZ is in a beta phase and has no interface for the input and
output. You'll need an editor to enter the datas needed by the program. The
output will be written in an ASCII file that you can later print. The advantage
of this is that HamFTZ can be compiled on any computer with an ANSI C-Compiler.
The DOS version of HamFTZ was compiled with Turbo C++ v3.0 and will use an
arithmetic coprocessor if one is present.
B. Copyright
I release this program as Freeware. That means you can copy and distribute
it for free as long as you give all the files that belong to this package.
A commercial use of this program is not allowed. Ask the author for a commercial
use of HamFTZ. The sources are not free but I think to release them as soon as
the program become more 'usable'.
The files that belong to this distribution are:
HAMFTZ.EXE the executable
HAMFTZ.DOC this file
HISTORY.TXT history of HamFTZ
HAMFTZ.IN example of an input file
HAMFTZ.OUT example of an output file
MINIFTZ4.BAS the original BASIC program from FTZ, Darmstadt, Germany
FTZMUF2.DAT ionospheric datas needed by the program
RUN.BAT Example of a batch file for using HamFTZ
C. Installation
To install the program, copy the file HAMFTZ.ZIP into any directory
(e.g C:\HAMFTZ) and decompress it with PKUNZIP(tm) or UNZIP(tm). It will create
some files and the executable HAMFTZ.EXE. You must always start the program
in this directory.
D. Running the program
To run the program go into the directory where you installed HamFTZ and
edit the file HAMFTZ.IN (it contains all datas needed for one calculation).
This file is self explainary (I hope so!) and must be in the same directory
as HAMFTZ.EXE .You can then modify it as needed. After you finished to edit it
you can run HamFTZ. The syntax is
HAMFTZ <inputfile> <outputfile>
E.g. type "HAMFTZ HAMFTZ.IN HAMFTZ.OUT" and after the calculation edit or print
the file HAMFTZ.OUT .This file is also well documented so I don't want to
explain it here (it's planned for the future). I've added a batch file RUN.BAT
that will edit the input file, run the program and finally edit the output.
E. Miscellaneous
This documentation is far from being complete. It will grow as my free time
permits. If someone find errors in this text feel free to write me a note.
My native langage is not english so I need help to write and improve this
text. I will appreciate any comments that can help me to improve this
program. As I work on HamFTZ in my free time I can't give any schedule
for bug fixes or program improvements. SORRY!
F. Abbrevations
MUF Maximal usable frequency
LUF Lowest usable frequency
FOT Optimal work frequency (frequence optimale de travail)
dBu dB above 1 uV/m
UTC Universal time coordinated
SSN Sun spot number
G. Author address
Cedric Baechler, HB9HFN
La Perrausa 12
1635 La Tour-de-Treme
Switzerland
Phone : +41-29-283 97
Internet: cedric@ulysse.ch
Fidonet : Cedric Baechler@2:301/714.74
Packet : HB9HFN@HB9FG.CHE.EU
Please use Internet e-mail if possible!
H. References
Damboldt, Th. & Süßmann, P., "A Simple Method of Estimating the Ionospheric
Parameters foF2 and M(3000) with the Aid of a Home Computer",
Technischer Bericht FI445 TB 25 E, N-I 821 580 976/88 der Deutschen
Bundespost, Forschungsinstitut beim FTZ.
Goodman, J.M., "HF Communication: Science & Technology", VNR New York
Ochs, A., "The Forecasting System of the Fernmeldetechnischen Zentralamt
(FTZ)", 1970, Ionospheric Forecasting, NATO-AGARD-CP-49, edited by
V. Agy, paper no.43
Rose, R.B., "MINIMUF: A Simplified MUF-Prediction Program for
Microcomputer", QST, December 1982, p. 36-38
Rose, R.B., "MINIMUF Revisited", Technical Correspondance, QST,
October 1983, p. 48
Shallon, S.C., "MINIMUF for Polar Paths", Technical Correspondance, QST,
March 1984, p. 46
Shiffhauer, N., "Funkwetter aus dem Computer", funk, July 1990, p. 54-57
Shiffhauer, N., "Gray Line: DXen in der Grauzone", funk, July 1992, p. 54-57