Markup fixes.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=129300
@ -41,36 +41,37 @@
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.Nd reformat input as morse code
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.Sh SYNOPSIS
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.Nm
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.Op Fl p
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.Op Fl elps
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.Op Fl d Ar device
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.Op Fl e
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.Op Fl w Ar speed
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.Op Fl f Ar frequency
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.Op Fl l
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.Op Fl s
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.Op Ar string ...
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.Sh DESCRIPTION
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The command
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The
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.Nm
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read the given input and reformat it in the form of morse code.
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command reads the given input and reformats it in the form of morse code.
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Acceptable input are command line arguments or the standard input.
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.Pp
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Available options:
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.Bl -tag -width flag
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.Bl -tag -width indent
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.It Fl l
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The
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.Fl l
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option produces output suitable for led(4) devices.
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option produces output suitable for
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.Xr led 4
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devices.
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.It Fl s
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The
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.Fl s
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option produces dots and dashes rather than words.
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.It Fl p
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Send morse the real way. This only works if your system has
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Send morse the real way.
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This only works if your system has
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.Xr speaker 4
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support.
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.It Fl w Ar speed
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Set the sending speed in words per minute. If not specified the default
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Set the sending speed in words per minute.
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If not specified, the default
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speed of 20 WPM is used.
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.It Fl f Ar frequency
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Set the sidetone frequency to something other than the default 600 Hz.
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@ -79,10 +80,10 @@ Similar to
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.Fl p ,
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but use the RTS line of
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.Ar device
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(which must by a tty device)
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(which must by a TTY device)
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in order to emit the morse code.
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.It Fl e
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echo each character before it is sent, used together with either
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Echo each character before it is sent, used together with either
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.Fl p
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or
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.Fl d .
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@ -98,7 +99,8 @@ or the
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.Fl d
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flag.
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.Pp
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Not all prosigns have corresponding characters. Use
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Not all prosigns have corresponding characters.
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Use
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.Ql #
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for
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.Em AS ,
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@ -124,21 +126,24 @@ and
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for
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.Em AR .
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.Pp
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Using flag
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.Fl d Ar device
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Using the
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.Fl d
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flag,
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it is possible to key an external device, like a sidetone generator with
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a headset for training purposes, or even your ham radio transceiver. For
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a headset for training purposes, or even your ham radio transceiver.
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For
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the latter, simply connect an NPN transistor to the serial port
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.Ar device ,
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emitter connected to ground, base connected through a resistor
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(few kiloohms) to RTS, collector to the key line of your transceiver
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(assuming the transceiver has a positive key supply voltage and is keyed
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by grounding the key input line). A capacitor (some nanofarads) between
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by grounding the key input line).
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A capacitor (some nanofarads) between
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base and ground is advisable to keep stray RF away,
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and to suppress the
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minor glitch that is generated during program startup.
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.Sh FILES
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.Bl -tag -width /dev/speaker -compact
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.Bl -tag -width ".Pa /dev/speaker" -compact
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.It Pa /dev/speaker
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speaker device file
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.El
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@ -148,12 +153,15 @@ Your
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locale codeset determines how
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characters with the high-order bit set
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are interpreted.
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.Pp
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.Bl -tag -width ".Li ISO8859-15" -compact
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.It Li ISO8859-1
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.It Li ISO8859-15
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Interpret characters with the high-order bit set as Western European characters.
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.Pp
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.It Li KOI8-R
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Interpret characters with the high-order bit set as Cyrillic characters.
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.Pp
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.It Li ISO8859-7
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Interpret characters with the high-order bit set as Greek characters.
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.El
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@ -174,5 +182,5 @@ Only understands a few European characters
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no Asian characters,
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and no continental landline code.
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.Pp
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Sends a bit slower than it should due to system overhead. Some people
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would call this a feature.
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Sends a bit slower than it should due to system overhead.
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Some people would call this a feature.
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