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1994-11-02
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118 lines
FAX DISPLAY
for the
KANTRONICS KAM and KPC3
Copyright (c) 1993, 1994 by Richard R. Hensel N8WLC
All Rights Reserved
This program is distributed as SHAREWARE and the author retains
all copyrights. You are encouraged to give copies to all of your
friends and upload this program to any BBS as long as this document
is included. If you like the program, please support further
development by sending $5.00 to
Richard Hensel N8WLC
715 Joselyn Avenue
Lexington, Ohio USA 44904
This program will interface with the fax capabilities built into
the KAM and KPC3 TNC's from Kantronics Inc. The command are as
follows:
Keys use
1-0 set line skipping ie 1 = 1 to 1 2 = 2 to 1
F1-F10 picture skew left, skip (1 - 10) pixels to align fax on screen
AF1-AF10 picture skew right, skip (1 - 10) pixels to align fax on screen
ALT X exit
ESC Start fax recieve and leave terminal mode
i invert picture ie black on white to white on black
t return to terminal mode. Stops fax receive
c clear screen
s save incoming fax to FAX.FIL
r copy the saved fax to annother file name
p playback
1-0 These set the aspect ratio of the displayed fax picture.
0 displays all lines of the incomming fax, and 9 displays
every 9th line. I have found the most natural aspect is
found using 1.
F1-F10 The fax must be centered on the monitor screen. If you
AF1-AF10 need to move the picture left use the F1 - F10 keys. If
instead it would be better to move right use Alt F1 to
Alt F10. These keys shift the picture 1 to 10 pixels
in the intended direction.
ALT X Exits the program and re sets the TNC.
ESC The Escape key causes the program to leave terminal
mode and start recieving a fax.
i Invert the picture, that is change from white dots on a
black background to balck dots on a white background.
I have found that the best pictures come from using
upper side band and when revieving a satalite foto,
inverting the picture.
t Return to terminal mode from fax recieve. This will
put you into a simple terminal emulation connected
to the TNC.
c Clear the screen, this will clear the screen of the
picture while in FAX recieve mode.
s Save the incoming fax. This will start saving the
fax to a file called FAX.FIL for later playback.
r Will copy the FAX.FIL to another file so multiple
images can be saved.
p Playback will cause the program to play FAX.FIL back
to the screen.
Coments and sugestions are wellcome. I can be reached at the address
at the beginning of this doc file or on packet at
N8WLC @ W8WE.OH.USA.NA
Hardware Requirements
1 IBM PC/AT 80286 or equivelant with 640 Kbytes of menory.
2 Microsoft or IBM PC DOS 3.1 or higher.
3 EGA or VGA adapter card and monitor
Comming Attractions:
1 Printing the fax to you dot matrix printer.
2 Enhancements you request.
Bugs
1 Due to the COM port interface routines I am currently using
the program will not run if your computer has a 16550 uart
with the buffering turned on. So i have provided a short
program "16550.exe" that will turn the buffering off.
just issue the command "16550 x off" where x is the COM port
1 or 2 that you are using.