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MORSE(6) DragonFly Games Manual MORSE(6)
morse -- reformat input as morse code
morse [-elops] [-P dspdevice] [-d device] [-w speed] [-W speed]
[-f frequency] [string ...]
The command morse read the given input and reformat it in the form of
morse code. Acceptable input are command line arguments or the standard
-l The -l option produces output suitable for led(4) devices.
-s The -s option produces dots and dashes rather than words.
-o Write 16bit signed, 44.1kHz native endian sound data to the file
specified by -P, or, if not specified, to standard out.
-p Send morse the real way. This only works if your system has
Select a different dsp device from the default /dev/dsp.
Set the sending speed in words per minute. If not specified the
default speed of 20 WPM is used.
Enable Farnsworth keying. The argument to -w will set the charac-
ter keying speed and the argument to -W will set the spacing
between character and words.
Set the sidetone frequency to something other than the default 600
Similar to -p, but use the RTS line of device (which must by a tty
device) in order to emit the morse code.
-e echo each character before it is sent, used together with either -p
The -w, -W, and -f flags only work in conjunction with either the -p or
the -d flag.
Not all prosigns have corresponding characters. Use angle brackets to
create a ligature, like `<KA>'. The more common prosigns are `=' for BT,
`(' for KN and `+' for AR.
Using flag -d device it is possible to key an external device, like a
sidetone generator with a headset for training purposes, or even your ham
radio transceiver. For the latter, simply connect an NPN transistor to
the serial port device, emitter connected to ground, base connected
through a resistor (few kiloohms) to RTS, collector to the key line of
your transceiver (assuming the transceiver has a positive key supply
voltage and is keyed by grounding the key input line). A capacitor (some
nanofarads) between base and ground is advisable to keep stray RF away,
and to suppress the minor glitch that is generated during program
If your LC_CTYPE locale codeset is `KOI8-R', characters with the high-
order bit set are interpreted as Cyrillic characters. If your LC_CTYPE
locale codeset is `ISO8859-1' compatible, they are interpreted as belong-
ing to the `ISO-8859-1' character set.
Sound support for morse added by Lyndon Nerenberg (VE7TCP/VE6BBM)
<email@example.com> and later converted to use sound(4) by Simon
'corecode' Schubert <firstname.lastname@example.org>.
Ability to key an external device added by Jorg Wunsch (DL8DTL).
Only understands a few European characters (German and French), no Asian
characters, and no continental landline code.
Sends a bit slower than it should due to system overhead. Some people
would call this a feature.
DragonFly 4.7 October 19, 2014 DragonFly 4.7