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.

Features:

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.

Hardware requirements


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).

Interface
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

Release history

Version SHW-1.2

Shareware-Version, running without functional limitations.

Version GSH-2.0

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

Version GSH-2.01

Problem of blocking the receiving function is eliminated

Version GSH-2.1

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.
Exceptions:
- Use the right button when F6/F7 selected to copy with reduced size.
- Use the right button to zoom-up RX-window.
Changed/Improved functions:
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 Load function.
- 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.
Auto-Save:
- 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.

Download dl4saw23.exe now


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 ordering.

How to Contact Us

Email hamsales@pervisell.com , Telephone (International)+44 208 123 0336 or (UK) 0208 123 0336

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If you have trouble installing this software in WINDOWS 95 then please click here

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