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MORSE(6)		    DragonFly Games Manual		      MORSE(6)

NAME

morse -- reformat input as morse code

SYNOPSIS

morse [-elops] [-P dspdevice] [-d device] [-w speed] [-W speed] [-f frequency] [string ...]

DESCRIPTION

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 input. Available options: -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 sound(4) support. -P dspdevice Select a different dsp device from the default /dev/dsp. -w speed Set the sending speed in words per minute. If not specified the default speed of 20 WPM is used. -W speed 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. -f frequency Set the sidetone frequency to something other than the default 600 Hz. -d device 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 or -d. 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 startup.

ENVIRONMENT

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.

SEE ALSO

sound(4)

HISTORY

Sound support for morse added by Lyndon Nerenberg (VE7TCP/VE6BBM) <lyndon@orthanc.com> and later converted to use sound(4) by Simon 'corecode' Schubert <corecode@fs.ei.tum.de>. Ability to key an external device added by Jorg Wunsch (DL8DTL).

BUGS

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 4.1 October 19, 2014 DragonFly 4.1