diff options
Diffstat (limited to 'games/bcd')
-rw-r--r-- | games/bcd/bcd.6 | 48 |
1 files changed, 43 insertions, 5 deletions
diff --git a/games/bcd/bcd.6 b/games/bcd/bcd.6 index e06dafe..732a4ee 100644 --- a/games/bcd/bcd.6 +++ b/games/bcd/bcd.6 @@ -47,6 +47,8 @@ .Op Ar string ... .Nm morse .Op Fl p +.Op Fl d Ar device +.Op Fl e .Op Fl w Ar speed .Op Fl f Ar frequency .Op Fl s @@ -61,28 +63,44 @@ read the given input and reformat it in the form of punched cards, paper tape or morse code respectively. Acceptable input are command line arguments or the standard input. .Pp -Available option: +Available options for program +.Nm morse : .Bl -tag -width flag .It Fl s The .Fl s -option for morse produces dots and dashes rather than words. +option produces dots and dashes rather than words. .It Fl p -Send morse the real way. This only works if your system has sound -support and if the program understands your audio hardware. +Send morse the real way. This only works if your system has +.Xr speaker 4 +support. .It Fl w Ar speed Set the sending speed in words per minute. If not specified the default speed of 20 WPM is used. .It Fl f Ar frequency Set the sidetone frequency to something other than the default 600 Hz. +.It Fl d Ar device +Similar to +.Fl p , +but use the RTS line of +.Ar device +.Pq which must by a tty device +in order to emit the morse code. +.It Fl e +echo each character before it is sent, used together with either +.Fl p +or +.Fl d . .El .Pp The .Fl w and .Fl f -flags only work in conjunction with the +flags only work in conjunction with either the .Fl p +or the +.Fl d flag. .Pp Not all prosigns have corresponding characters. Use @@ -110,6 +128,19 @@ and .Ql + for .Em AR . +.Pp +Using flag +.Fl d Ar device +it is possible to key an external device, like a sidetone generator with +a headset for training purposes, or even your ham radio transceiver. For +the latter, simply connect an NPN transistor to the serial port +.Ar device , +emitter connected to ground, base connected through a resistor +(few kiloohms) to RTS, collector to the key line of your transceiver +(assuming the transceiver has a positive key supply voltage and is keyed +by grounding the key input line). A capacitor (some nanofarads) between +base and ground is advisable to keep stray RF away, and to supress the +minor glitch that is generated during program startup. .Sh FILES .Bl -tag -width /dev/speaker -compact .It Pa /dev/speaker @@ -131,10 +162,17 @@ Cyrillic characters. In all other cases, they are being interpreted as belonging to the .Ql ISO_8859-1 character set. +.Sh SEE ALSO +.Xr speaker 4 .Sh HISTORY Sound support for .Nm morse added by Lyndon Nerenberg (VE7TCP/VE6BBM) <lyndon@orthanc.com>. +.Pp +Ability to key an external device added by +.ie t J\(:org Wunsch +.el Joerg Wunsch +(DL8DTL). .Sh BUGS Does only understand a few European characters (namely German and French), but neither Asian ones, or the continental landline code. |