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. All advertising materials mentioning features or use of this software 14.\" must display the following acknowledgement: 15.\" This product includes software developed by the University of 16.\" California, Berkeley and its contributors. 17.\" 4. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" @(#)bcd.6 8.1 (Berkeley) 5/31/93 34.\" $FreeBSD: src/games/morse/morse.6,v 1.4.2.7 2003/01/26 02:57:27 keramida Exp $ 35.\" $DragonFly: src/games/morse/morse.6,v 1.10 2008/05/30 22:58:08 swildner Exp $ 36.\" 37.Dd May 30, 2008 38.Dt MORSE 6 39.Os 40.Sh NAME 41.Nm morse 42.Nd reformat input as morse code 43.Sh SYNOPSIS 44.Nm 45.Op Fl o 46.Op Fl p 47.Op Fl P Ar dspdevice 48.Op Fl d Ar device 49.Op Fl e 50.Op Fl w Ar speed 51.Op Fl W Ar speed 52.Op Fl f Ar frequency 53.Op Fl s 54.Op Ar string ... 55.Sh DESCRIPTION 56The command 57.Nm 58read the given input and reformat it in the form of morse code. 59Acceptable input are command line arguments or the standard input. 60.Pp 61Available options: 62.Bl -tag -width flag 63.It Fl s 64The 65.Fl s 66option produces dots and dashes rather than words. 67.It Fl o 68Write 16bit signed, 44.1kHz native endian sound data 69to the file specified by 70.Fl P , 71or, if not specified, to standard out. 72.It Fl p 73Send morse the real way. This only works if your system has 74.Xr sound 4 75support. 76.It Fl P Ar dspdevice 77Select a different dsp device from the default 78.Pa /dev/dsp . 79.It Fl w Ar speed 80Set the sending speed in words per minute. If not specified the default 81speed of 20 WPM is used. 82.It Fl W Ar speed 83Enable Farnsworth keying. 84The argument to 85.Fl w 86will set the character keying speed and the argument to 87.Fl W 88will set the spacing between character and words. 89.It Fl f Ar frequency 90Set the sidetone frequency to something other than the default 600 Hz. 91.It Fl d Ar device 92Similar to 93.Fl p , 94but use the RTS line of 95.Ar device 96(which must by a tty device) 97in order to emit the morse code. 98.It Fl e 99echo each character before it is sent, used together with either 100.Fl p 101or 102.Fl d . 103.El 104.Pp 105The 106.Fl w , 107.Fl W , 108and 109.Fl f 110flags only work in conjunction with either the 111.Fl p 112or the 113.Fl d 114flag. 115.Pp 116Not all prosigns have corresponding characters. Use 117angle brackets to create a ligature, like 118.Ql <KA> . 119The more common prosigns are 120.Ql = 121for 122.Em BT , 123.Ql \&( 124for 125.Em KN 126and 127.Ql + 128for 129.Em AR . 130.Pp 131Using flag 132.Fl d Ar device 133it is possible to key an external device, like a sidetone generator with 134a headset for training purposes, or even your ham radio transceiver. For 135the latter, simply connect an NPN transistor to the serial port 136.Ar device , 137emitter connected to ground, base connected through a resistor 138(few kiloohms) to RTS, collector to the key line of your transceiver 139(assuming the transceiver has a positive key supply voltage and is keyed 140by grounding the key input line). A capacitor (some nanofarads) between 141base and ground is advisable to keep stray RF away, 142and to suppress the 143minor glitch that is generated during program startup. 144.Sh ENVIRONMENT 145If your 146.Ev LC_CTYPE 147locale codeset is 148.Ql KOI8-R , 149characters with the high-order bit set are interpreted as 150Cyrillic characters. If your 151.Ev LC_CTYPE 152locale codeset is 153.Ql ISO8859-1 154compatible, 155they are interpreted 156as belonging to the 157.Ql ISO-8859-1 158character set. 159.Sh SEE ALSO 160.Xr sound 4 161.Sh HISTORY 162Sound support for 163.Nm 164added by 165.An Lyndon Nerenberg (VE7TCP/VE6BBM) Aq lyndon@orthanc.com 166and later converted to use 167.Xr sound 4 168by 169.An Simon 'corecode' Schubert Aq corecode@fs.ei.tum.de . 170.Pp 171Ability to key an external device added by 172.An J\(:org Wunsch 173(DL8DTL). 174.Sh BUGS 175Only understands a few European characters 176(German and French), 177no Asian characters, 178and no continental landline code. 179.Pp 180Sends a bit slower than it should due to system overhead. Some people 181would call this a feature. 182