GSH-PC (SAW-SCAN) SSTV Converter by DL4SAW
GSH-PC is a program for sending and receiving SSTV (Slow-Scan
Television) pictures. This program is not a multi-mode decoder for
FAX/RTTY/PACTOR/etc., it was designed specifically for SSTV.
However, the program only requires a very simple interface circuit and
offers very good picture quality.
14 thumbnail pictures,
Split window for RX/TX,
Multitasking, e.g. image loading during receiving,
Supports all commonly used modes (ROBOT, SCOTTIE, SC-2 and MARTIN),
Load / save in BMP and TIFF image formats,
Needs a very simple interface
Up to 16 M. colours by VESA-norm. compatibility,
Supports the real-time (VD-720) frame-grabber,
Grafik user Interface with Buttons and 3-D effects.
PC and graphics adapter
The program runs on MS-DOS PCs with at least 640 KB memory.
It needs an 1MB VGA graphics adapter supporting the 640x480 VESA-mode,
15, 16 or 24 bits per pixel (VESA modes 272, 273 or 274).
We suggest using at least a 386DX processor machine with VLB-VGA
board. Colour resolution is, depending on the VESA-mode, 32K, 64K
or 16M colours per pixel. The best available resolution will be
selected automatically. Additionally at least 1 MB extended memory
is necessary (preferably 4MB).
To convert the audio signal between receiver and PC, a very simple
interface circuit is used - The Pervisell one works well.
This kind of interface (Hamcomm type) circuit is used by several
other RTTY and SSTV programs.
Now is the time try it for yourself. Click on the link and download
the best SSTV programme around - GSH PC - DL4SAW SSTV -
Download dl4saw.exe now
Shareware-Version, running without functional limitations.
Allows loading, saving and writing images during receiving
14 thumbnails, one of them is a receiving stack
Possible to slant correct also in Scottie-S1
New type of characters
Fast-Save function changed
Fill function: new color combinations
Password (PIN-number) is required
Problem of blocking the receiving function is eliminated
Martin-2 and Scottie-2 made are added
At the end of the TX-function it returns automatically to the
previously selected mode (RX or Hold)
Manual change of the SSTV-mode is allowed directly from the
RX-function (previously: RX->HOLD->MODE->HOLD->RX)
Previous version: GSH-2.21 (Updated from 2.2 on 15th September)
Load of PCX, TGA, CMP, JPG (JFIF and JTIF) pictures and others
Save images in JPG (JFIF) and CMP file format. Three different
compression level can be selected:
- LOW-Q 5-10 Kbyte (depending on the image content)
- MEDIUM-Q 10-25 Kbyte (depending on the image content)
- HIGH-Q 25-55 Kbyte (depending on the image content)
NOTE: Noisy images needs more disk space !
The CMP format is a compression format. It was created by LEAD-
Technologies, Inc., and it delivers a better image quality than
JPG at the same degree of compression level
The default save file format can be selected in the main configuration
menu (F2). The default file format can be temporary overwritten
just before saving an image. Press F-10 during the save
session for more information
Word, DX-mode; Allows setting big characters for good readability
Now the very latest - GSH PC V2.3 - DL4SAW SSTV
New functions and improvements:
Mouse control for almost all functions:
Installing the mouse:
The standard mouse driver should be entered in the autoexec.bat.
Be sure, that the installation of the mouse is conflict free ( E.g.
COM-1 for mouse, COM-2 for SSTV-modem).
Starting the mouse:
Click on the left mouse button, the mouse-arrow becomes visible.
Using the mouse:
Normally the left mouse button is to used to select a function. Note
that no double click is necessary. The right mouse button is used for
the "escape" function.
- Use the right button when F6/F7 selected to copy with reduced size.
- Use the right button to zoom-up RX-window.
Load: - Limitation of directory entries was increased to 500 files.
- fast file searching using PG-up/down keys and
window style preselect. Pressing e.g. "K" jumps
to the first file with beginning with "K".
At next pressing it jumps to the next file with "K".
- Delete files with "del" key instead of CTRL-DEL. It requires
confirmation to avoid unintentional deleting of files.
Save: - Limitation of directory entries was increased to 500 files.
- fast file searching using PG-up/down keys.
Preselect of directories is supported, similar to that of the
- To save a file using a user specified file name, the function
"save as.." has been added.
- Reset of auto-number to PIC_0001 has been changed.
Use the "del" key instead of ctrl-del. A confirmation
is required to avoid inintentional clearing the autonum.
- warning when attempting to overwrite an existing file.
- It is a new function. The function has to be enabled in the
main configuratios menue (F2). If enabled, the F5-LED
is on (orange). During storing, the LED is red coloured.
Reduced video noise:
- It is a new function. It can be selected in the main
configuration menue. This function eliminates moire in the
received SSTV signal caused by comparator interfaces delivering
unsymmetrical square-wave signal or when receving via UHF-FM.
Function not available any more:
Support of VD-720 video digitizer.
Try before you buy. You can register either via us or direct with
the author in Germany.
The REGISTERED VERSION
includes the following new features compared to the shareware version:
* Allows load, save, write images during receiving
* 14 thumbnails, one of them is a receiving stack
* Possible to apply slant correction also in Scottie-S1
* New type of characters
* Fast-Save function changed
* Fill function: new color combinations
* Password (PIN-number) is required
* Load PCX TGA CMP JPG (JFIF and JTIF) images
* DX-mode gives BIG CHARACTERS for better readability
* Version 2.21 is a bug-fix version of 2.2
This is a high quality program requiring high quality graphics. (Vesa mode
274 or 275). Make sure your monitor and video card is compatible before
How to Contact Us
Email firstname.lastname@example.org , Telephone
(International)+44 208 123 0336 or (UK) 0208 123 0336
Back to the HAM Page
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If you have trouble installing this software in WINDOWS 95 then please