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- This is an amateur radio RTTY program for the Atari ST.
-
- Capabilities:
- 1. BAUDOT (60, 75, & 100 WPM)
- ASCII (110 & 300 Baud)
-
- 2. Variable size split Screen
- Drag the MOVE bar on the transmit window to change size
- Type ahead to transmit window during receive.
-
- 3. Write Sessions to disk
- Received and transmitted characters are written to disk
- in the order they occur on the air.
-
- 4. Read disk files into transmit buffer.
-
- 5. Desk accessory support.
- NOTE--received characters are written to receive window
- even while desk accessory is active. This works OK as
- long as the desk accessory is running in a GEM window because
- RTTY uses GEM to determine if its window is obscured by
- another window. However, GEM forms (e.g. the standard file
- selector form) are not windows and are not protected from
- being overwritten on the screen by the RTTY program.
-
- 6. Limited line editing for transmitting.
- (delete back to beginning of current line)
-
- 7. Drop down menus are used for all functions except:
- F1 switches unconditionally and immediately to
- receive mode, and sets RTS off.
- F2 switches unconditionally and immediately to
- transmit mode, sets RTS on, and starts
- transmitting characters from the transmit
- buffer. When there are none, it holds the
- modem in the MARK state (no diddling).
- F3 inserts a character in the transmit buffer
- (displayed as a greek letter phi) that is
- not transmitted, but switches back to receive
- mode when it is reached. Any characters following
- the F3 character remain in the transmit buffer
- and will be sent when F2 is selected again.
- F4 allows deletion of all characters in the transmit
- buffer (after a confirmation). The deleted
- characters remain in the transmit window in
- the display, however.
-
- NOTES:
- RTTY.PRG and RTTY.RSC must reside in the same folder. The
- program exits immediately if the resource file is missing.
-
- The ASCII/Baudot conversion is from the 1982 ARRL Radio
- Amateur's Handbook, the chapter on Specialized Communications
- Systems. The FIGS code used is the US Figures (versus the
- CCITT No 2 Figures). The Bell character (FIGS 5) does not
- ring a bell, but prints a diamond character. When transmitting
- Baudot, the conversion from ASCII is done as characters are
- removed from the type ahead buffer. Characters that do not
- translate into Baudot are simply discarded at that time, even
- though they appear on the transmit half of the screen.
-
- I use the NOTEPAD desk accessory from COMPUTE! April, 1987
- Atari ST disk if I need a real text editor to compose for
- transmission, which makes up somewhat for the limited
- editing capability of the RTTY program itself. This is
- the main purpose of the "SWITCH RECORDING..." menu entry.
- It allows you to close the file currently being recorded,
- open a new one for recording, and then NOTEPAD can open
- the old one for inspection, or retransmitting text if you like.
-
- I used Megamax C compiler and resource editor to develop
- this program (but you don't need a C compiler to run it).
-
- This program was written and tested on an Atari 1040ST
- with single disk drive and monochrome monitor. My RTTY modem
- is a Heathkit HD3030 and my rig is a Kenwood TS-440S.
- I don't know whether this program will work on any other
- hardware although I think it should. Specifically, the
- color monitor could be a problem. I'd like to hear from anyone that
- tries this program on a color monitor, as well as from anyone that
- finds this program useful at all. Please send me a QSL at:
-
- 1805 Mayfield
- Round Rock, Texas 78681
-
-
-