[CW] Morse code for ! and #
Richard Knoppow
1oldlens1 at ix.netcom.com
Sat Jan 4 14:06:46 EST 2014
----- Original Message -----
From: "Bruce Prior" <n7rr at hotmail.com>
To: "CW Digest" <cw at mailman.qth.net>
Sent: Saturday, January 04, 2014 10:00 AM
Subject: [CW] Morse code for ! and #
We have a Morse code version of the @ character:
di-dah-dah-di-dah-dit.
There has been a lot of discussion over the years about the
need for the exclamation point (!) in International Morse
Code and various proposals have been made.
It would also be helpful if the number sign (#) could be
rendered in Morse code as well. I don't know whether that
possibility has ever been considered.
I have proposed that # be made a symbol in the International
System of Units, also called SI or the Metric System. Here
is my proposal:
The original version of the Continental code had an
exclamation point, the sign was the same as is now used for
the period or full stop: -.-.-. the signal used for the
period was .. .. .. At some point around the late 1920's
the signal period was switched to the one previously used
for the exclamation point and the latter dropped. The old
symbols continue to show up in some code charts, notably the
one in the book _Reference Data for Radio Engineers_ 4th
edition. It was long since obsolete then. I don't think the
hash mark (#) ever had a symbol in International Morse.
American Morse had a lot of signals from the Philips Code
which were not official. It also had signals to indicate
capitalization, etc. Very old books often include these. The
convention of 30 for end of message is probably from Philips
Code. It is carried over as the signal AR which approximates
it in International Morse. I am not so sure about 73 and 88
but they probably pre-date wireless.
Philips Code is interesting. I think one edition of the
Philips Code is available on-line free, not sure of the URL.
A system of short hand called Speed Writing seems to have
been inspired by the Philips Code. Those of a certain age
will remember seeing small ads in magazines reading
something like F U CN RD TS U CN GT A GD JB AS A SEC. A
friend of mine actually did this, i.e. learned Speed Writing
and became an excutive secretary.
--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com
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