| HamComm 3.1 Copyright (c) 1990 - 2000 by W.F. Schroeder DL5YEC. All rights
reserved. This is NOT a "public domain" or "freeware"
program. You were granted a limited
license to use this software for evaluation purposes for a period of 30
days. If you intend to continue using this software after the 30 day evaluation
period, you should have made a registration
payment. This is no longer possible, as from December
31st 2000. We would like to say THANKYOU to all of the people who
registered, but remind you that by downloading this
software now, you are not supporting anyone.
The English manual is in the file HC.DOC - Please READ IT - No questions should be sent either to us, nor the author. THERE IS NO LONGER ANY SUPPORT FOR THIS PRODUCT - YOU ACCEPT IT "AS-IS", OR REMOVE IT FROM YOUR MACHINE.
You can now download your local language versions of the related text files in Dutch or Italian
Download the DUTCH TEXT FILES
Download the ITALIAN TEXT FILES
|HamComm is a program for ham radio communications. It supports reception and transmission of radio teletype (RTTY), AMTOR ARQ/FEC, SITOR A/B, NAVTEX and Morse code (CW) signals. A decoder for SHIP and SYNOP reports from weather stations is also included. PACTOR decoding is available with the registered version.|
|HamComm does not require an RTTY converter, not even a modem chip. The audio output of the transceiver is connected to the serial port of any PC/XT/AT compatible computer thru a very simple low-cost interface. Only one IC is needed (Op-Amp TL071 or similar) and a few diodes, capacitors and resistors. Even easier, use the Pervisell Demodulator.|
For transmission a tone signal is available at the COM port which can
be connected to the microphone input of the transceiver thru a passive
r/c filter. Audio frequency decoding and serial/parallel conversion are
all done in software.
HamComm will automatically detect the type of video adapter in use. MDA, CGA, EGA, VGA and Hercules are supported. All graphics routines are written in assembler for speed. No attempt has been made to avoid screen flicker (snow) on cheap CGAs.
HamComm may work to some degree on XT machines, but the graphics
displays of the input signal are more fun to watch on an AT-class
computer. Nearly all of the functions can also be controlled by using a
mouse. A hard disk is recommended but not required. All texts are
written in English and the online help system includes the schematics
for the interface circuit. It is easier to use the Pervisell Demodulator
if you are not a home constructor. There are also predefined standard
phrases, a QTH distance/direction calculator and a callsign decoder.
Currently about 370KB of free ram is required.
HamComm will probably NOT run under any kind of multitasking software like Windows 3.x/95/NT or OS/2. It needs direct control of the interrupt controller, timer chip and serial I/O hardware.
The Tuning Indicator shown on the right is an invaluable aid. Not only
does it ensure quick and accurate tuning for all data modes, but it
also helps you find the 1900 Hz centre frequency for you favourite FAX
program. Just download the software and try it for 30 days.
HamComm 3.1 and the Pervisell Demodulator are a wonderful combination. Once you have tried them, you just won't be able to resist the Registered Version!
|This SPECTRUM display shows an RTTY signal with 425Hz shift. The yellow lines are the signal, the green lines show the expected mark and space tones. Note the blue 'shadow'. It can be used to visualize the bandwidth of your radio if you slowly tune up and down a few times.|
|This is HamComm's SCOPE display. It shows an RTTY signal with 425Hz shift at 50 Baud. The scope grid has been switched off.|
|Another shot of the SCOPE display shows a single AMTOR block with 170Hz shift. The block has three characters, 7 bits each at 100 Baud, e.g. 10ms per bit.|
Navtex on 518 KHz is a very interesting frequency for shipping reports.
You only have to listen at the right times to get results like in the
following screen shots.
Just click on the link and download the latest information on NAVTEX. This is the NAVTEX LIST compiled by Marius Rensen, Hannover Germany.
Unzip it, check out the best times for your locality and try yet one more of HamComms's modes right now.
|Remember, software authors spend a great amount of time generating software. When you've evaluated HamComm, remember that just one of the reasons for discontinuing this product was the lack of registrations|
If you want to download HamComm, then CLICK HERE TO VIEW THE CONDITIONS OF DOWNLOAD
Back to the HAM Page
Back to the Pervisell Home Page
© 1996-2002 HAROON KHAN