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29 .\" @(#)bcd.6 8.1 (Berkeley) 5/31/93
30 .\" $FreeBSD: src/games/morse/morse.6,v 1.4.2.7 2003/01/26 02:57:27 keramida Exp $
37 .Nd reformat input as morse code
50 read the given input and reformat it in the form of morse code.
51 Acceptable input are command line arguments or the standard input.
58 option produces output suitable for
64 option produces dots and dashes rather than words.
66 Write 16bit signed, 44.1kHz native endian sound data
67 to the file specified by
69 or, if not specified, to standard out.
71 Send morse the real way. This only works if your system has
75 Select a different dsp device from the default
78 Set the sending speed in words per minute. If not specified the default
79 speed of 20 WPM is used.
81 Enable Farnsworth keying.
84 will set the character keying speed and the argument to
86 will set the spacing between character and words.
88 Set the sidetone frequency to something other than the default 600 Hz.
92 but use the RTS line of
94 (which must by a tty device)
95 in order to emit the morse code.
97 echo each character before it is sent, used together with either
108 flags only work in conjunction with either the
114 Not all prosigns have corresponding characters. Use
115 angle brackets to create a ligature, like
117 The more common prosigns are
131 it is possible to key an external device, like a sidetone generator with
132 a headset for training purposes, or even your ham radio transceiver. For
133 the latter, simply connect an NPN transistor to the serial port
135 emitter connected to ground, base connected through a resistor
136 (few kiloohms) to RTS, collector to the key line of your transceiver
137 (assuming the transceiver has a positive key supply voltage and is keyed
138 by grounding the key input line). A capacitor (some nanofarads) between
139 base and ground is advisable to keep stray RF away,
141 minor glitch that is generated during program startup.
147 characters with the high-order bit set are interpreted as
148 Cyrillic characters. If your
163 .An Lyndon Nerenberg (VE7TCP/VE6BBM) Aq Mt lyndon@orthanc.com
164 and later converted to use
167 .An Simon 'corecode' Schubert Aq Mt corecode@fs.ei.tum.de .
169 Ability to key an external device added by
173 Only understands a few European characters
176 and no continental landline code.
178 Sends a bit slower than it should due to system overhead. Some people
179 would call this a feature.