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 1.3 2006/02/17 19:33:31 swildner Exp $ 36.\" 37.Dd December 7, 2000 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 p 46.Op Fl d Ar device 47.Op Fl e 48.Op Fl w Ar speed 49.Op Fl f Ar frequency 50.Op Fl s 51.Op Ar string ... 52.Sh DESCRIPTION 53The command 54.Nm 55read the given input and reformat it in the form of morse code. 56Acceptable input are command line arguments or the standard input. 57.Pp 58Available options: 59.Bl -tag -width flag 60.It Fl s 61The 62.Fl s 63option produces dots and dashes rather than words. 64.It Fl p 65Send morse the real way. This only works if your system has 66.Xr speaker 4 67support. 68.It Fl w Ar speed 69Set the sending speed in words per minute. If not specified the default 70speed of 20 WPM is used. 71.It Fl f Ar frequency 72Set the sidetone frequency to something other than the default 600 Hz. 73.It Fl d Ar device 74Similar to 75.Fl p , 76but use the RTS line of 77.Ar device 78(which must by a tty device) 79in order to emit the morse code. 80.It Fl e 81echo each character before it is sent, used together with either 82.Fl p 83or 84.Fl d . 85.El 86.Pp 87The 88.Fl w 89and 90.Fl f 91flags only work in conjunction with either the 92.Fl p 93or the 94.Fl d 95flag. 96.Pp 97Not all prosigns have corresponding characters. Use 98.Ql # 99for 100.Em AS , 101.Ql @ 102for 103.Em SK , 104.Ql * 105for 106.Em VE 107and 108.Ql % 109for 110.Em BK . 111The more common prosigns are 112.Ql = 113for 114.Em BT , 115.Ql \&( 116for 117.Em KN 118and 119.Ql + 120for 121.Em AR . 122.Pp 123Using flag 124.Fl d Ar device 125it is possible to key an external device, like a sidetone generator with 126a headset for training purposes, or even your ham radio transceiver. For 127the latter, simply connect an NPN transistor to the serial port 128.Ar device , 129emitter connected to ground, base connected through a resistor 130(few kiloohms) to RTS, collector to the key line of your transceiver 131(assuming the transceiver has a positive key supply voltage and is keyed 132by grounding the key input line). A capacitor (some nanofarads) between 133base and ground is advisable to keep stray RF away, 134and to suppress the 135minor glitch that is generated during program startup. 136.Sh ENVIRONMENT 137If your 138.Ev LC_CTYPE 139locale codeset is 140.Ql KOI8-R , 141characters with the high-order bit set are interpreted as 142Cyrillic characters. If your 143.Ev LC_CTYPE 144locale codeset is 145.Ql ISO8859-1 146compatible, 147they are interpreted 148as belonging to the 149.Ql ISO-8859-1 150character set. 151.Sh FILES 152.Bl -tag -width /dev/speaker -compact 153.It Pa /dev/speaker 154speaker device file 155.El 156.Sh SEE ALSO 157.Xr speaker 4 158.Sh HISTORY 159Sound support for 160.Nm 161added by 162.An Lyndon Nerenberg (VE7TCP/VE6BBM) Aq lyndon@orthanc.com . 163.Pp 164Ability to key an external device added by 165.An J\(:org Wunsch 166(DL8DTL). 167.Sh BUGS 168Only understands a few European characters 169(German and French), 170no Asian characters, 171and no continental landline code. 172.Pp 173Sends a bit slower than it should due to system overhead. Some people 174would call this a feature. 175