MORSE(6) FreeBSD Games Manual MORSE(6)
NAME
morse - reformat input as morse code
SYNOPSIS
morse [-elrps] [-d device] [-w speed] [-c speed] [-f frequency]
[string ...]
DESCRIPTION
The morse command reads the given input and reformats it in the form of
morse code. Acceptable input are command line arguments or the standard
input.
Available options:
-l The -l option produces output suitable for led(4) devices.
-s The -s option produces dots and dashes rather than words.
-p Send morse the real way. This only works if your system has
speaker(4) support.
-w speed
Set the sending speed in words per minute. If not specified, the
default speed of 20 WPM is used.
-c speed
Farnsworth support. Set the spacing between characters in words
per minute. This is independent of the speed that the individual
characters are sent. If not specified, defaults to the effective
value of the -w option.
-f frequency
Set the sidetone frequency to something other than the default
600 Hz.
-d device
Similar to -p, but use the RTS line of device (which must be a
TTY device) in order to emit the morse code.
-e Echo each character before it is sent, used together with either
-p or -d.
-r Decode morse output consisting of dots and dashes (as generated
by using the -s option).
The -w, -c and -f flags only work in conjunction with either the -p or
the -d flag.
Not all prosigns have corresponding characters. Use `#' for AS, `&' for
SK, `*' for VE and `%' for BK. The more common prosigns are `=' for BT,
`(' for KN and `+' for AR.
Using the -d flag, 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 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 suppress the minor glitch that is generated during program
startup.
ENVIRONMENT
Your LC_CTYPE locale codeset determines how characters with the high-
order bit set are interpreted.
ISO8859-1
ISO8859-15 Interpret characters with the high-order bit set as Western
European characters.
KOI8-R Interpret characters with the high-order bit set as Cyrillic
characters.
ISO8859-7 Interpret characters with the high-order bit set as Greek
characters.
FILES
/dev/speaker speaker(4) device file
SEE ALSO
speaker(4)
ITU-T Recommendation F.1, Operational provisions for the international
public telegram service, Division B, I. Morse code.
ITU-R M.1677-1, International Morse code,
https://www.itu.int/rec/R-REC-M.1677-1-200910-I/, 2009.
HISTORY
Sound support for morse added by Lyndon Nerenberg (VE6BBM)
<
[email protected]>.
Ability to key an external device added by Jorg Wunsch (DL8DTL).
Farnsworth support for morse added by Stephen Cravey (N5UUU).
BUGS
Only understands a few European characters (German and French), no Asian
characters, and no continental landline code.
Sends a bit slower than it should due to system overhead. Some people
would call this a feature.
FreeBSD 14.1-RELEASE-p8 April 16, 2023 FreeBSD 14.1-RELEASE-p8