1.\" Copyright (c) 2000 Alexey Zelkin. All rights reserved. 2.\" Copyright (c) 1988, 1991, 1993 3.\" The Regents of the University of California. All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 3. Neither the name of the University nor the names of its contributors 14.\" may be used to endorse or promote products derived from this software 15.\" without specific prior written permission. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27.\" SUCH DAMAGE. 28.\" 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 $ 31.\" $DragonFly: src/games/morse/morse.6,v 1.10 2008/05/30 22:58:08 swildner Exp $ 32.\" 33.Dd May 30, 2008 34.Dt MORSE 6 35.Os 36.Sh NAME 37.Nm morse 38.Nd reformat input as morse code 39.Sh SYNOPSIS 40.Nm 41.Op Fl o 42.Op Fl p 43.Op Fl P Ar dspdevice 44.Op Fl d Ar device 45.Op Fl e 46.Op Fl w Ar speed 47.Op Fl W Ar speed 48.Op Fl f Ar frequency 49.Op Fl s 50.Op Ar string ... 51.Sh DESCRIPTION 52The command 53.Nm 54read the given input and reformat it in the form of morse code. 55Acceptable input are command line arguments or the standard input. 56.Pp 57Available options: 58.Bl -tag -width flag 59.It Fl s 60The 61.Fl s 62option produces dots and dashes rather than words. 63.It Fl o 64Write 16bit signed, 44.1kHz native endian sound data 65to the file specified by 66.Fl P , 67or, if not specified, to standard out. 68.It Fl p 69Send morse the real way. This only works if your system has 70.Xr sound 4 71support. 72.It Fl P Ar dspdevice 73Select a different dsp device from the default 74.Pa /dev/dsp . 75.It Fl w Ar speed 76Set the sending speed in words per minute. If not specified the default 77speed of 20 WPM is used. 78.It Fl W Ar speed 79Enable Farnsworth keying. 80The argument to 81.Fl w 82will set the character keying speed and the argument to 83.Fl W 84will set the spacing between character and words. 85.It Fl f Ar frequency 86Set the sidetone frequency to something other than the default 600 Hz. 87.It Fl d Ar device 88Similar to 89.Fl p , 90but use the RTS line of 91.Ar device 92(which must by a tty device) 93in order to emit the morse code. 94.It Fl e 95echo each character before it is sent, used together with either 96.Fl p 97or 98.Fl d . 99.El 100.Pp 101The 102.Fl w , 103.Fl W , 104and 105.Fl f 106flags only work in conjunction with either the 107.Fl p 108or the 109.Fl d 110flag. 111.Pp 112Not all prosigns have corresponding characters. Use 113angle brackets to create a ligature, like 114.Ql <KA> . 115The more common prosigns are 116.Ql = 117for 118.Em BT , 119.Ql \&( 120for 121.Em KN 122and 123.Ql + 124for 125.Em AR . 126.Pp 127Using flag 128.Fl d Ar device 129it is possible to key an external device, like a sidetone generator with 130a headset for training purposes, or even your ham radio transceiver. For 131the latter, simply connect an NPN transistor to the serial port 132.Ar device , 133emitter connected to ground, base connected through a resistor 134(few kiloohms) to RTS, collector to the key line of your transceiver 135(assuming the transceiver has a positive key supply voltage and is keyed 136by grounding the key input line). A capacitor (some nanofarads) between 137base and ground is advisable to keep stray RF away, 138and to suppress the 139minor glitch that is generated during program startup. 140.Sh ENVIRONMENT 141If your 142.Ev LC_CTYPE 143locale codeset is 144.Ql KOI8-R , 145characters with the high-order bit set are interpreted as 146Cyrillic characters. If your 147.Ev LC_CTYPE 148locale codeset is 149.Ql ISO8859-1 150compatible, 151they are interpreted 152as belonging to the 153.Ql ISO-8859-1 154character set. 155.Sh SEE ALSO 156.Xr sound 4 157.Sh HISTORY 158Sound support for 159.Nm 160added by 161.An Lyndon Nerenberg (VE7TCP/VE6BBM) Aq lyndon@orthanc.com 162and later converted to use 163.Xr sound 4 164by 165.An Simon 'corecode' Schubert Aq corecode@fs.ei.tum.de . 166.Pp 167Ability to key an external device added by 168.An J\(:org Wunsch 169(DL8DTL). 170.Sh BUGS 171Only understands a few European characters 172(German and French), 173no Asian characters, 174and no continental landline code. 175.Pp 176Sends a bit slower than it should due to system overhead. Some people 177would call this a feature. 178