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Author Topic: I wonder about morse code  (Read 20824 times)
G3RZP
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Posts: 1213




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« Reply #30 on: January 29, 2018, 05:35:54 AM »

Rick,

You really need a steam hauled train to despatch with it, though!

73 Peter G3RZP
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KL7CW
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Posts: 554




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« Reply #31 on: January 29, 2018, 11:30:04 AM »

I recorded an American Morse code message on a small tape recorder and my cousin hid it inside his miniature train station model railroad set up.  When the train nears the station you can hear the clicking and clacking.  My recollection that on TV and in the movies both tone type code and sounders are sometimes just random patterns, but also sometimes are readable messages.  The same for blinker lights on ships (which I can read) are sometimes just random flashes, but sometimes are real code.  Another note, I adjust my sounders so the click (downward motion of the sounder) and the clack of the upward motion are about the same volume.  I like to adjust my sounders so what I call the click and clack sound are slightly different sounding.  May not be correct but works fine for me.  It seems to take me less concentration, but usually I can read less than perfectly adjusted sounders.  You can go to U tube and do a search on something like "Telegraph Sounder", there used to be various videos demonstrating them...some were good properly adjusted and sent code, others were just someone goofing around with a sounder and key.  I did buy one beautiful UK style sounder, looks a bit different than most American ones, but they all work basically the same way and sound "roughly" the same.
             Rick  KL7CW    still of sound mind
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KL7CW
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Posts: 554




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« Reply #32 on: January 29, 2018, 12:02:23 PM »

Suggestion for a very interesting experiment.  Teach 5 Boy or Girl scouts International Morse Code on a sounder.  Teach another 5 the same code with a tone oscillator.  My prediction is that there would not be any significant difference in the final speed and accuracy.  Both sound like "music" to my ears.  I think the clicking and clacking of my sounders may drive my wife a little more crazy than the mellow 400 to 600 Hz volume controlled sine wave code from my radio speaker.  With some practice, you never hear tone dots and dashes, or even the clicks and clacks of a sounder.  You just hear letters or sometimes whole words...you do not even need to concentrate too much.  This takes awhile..... many months or possibly a year or more.
         Buy an old sounder....try it, you may like it                    KL7CW
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AA4HA
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Posts: 2630




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« Reply #33 on: January 29, 2018, 06:29:50 PM »

I think I heard Gugielmo Marconi in a CW broadcast from 1899. He was telling dirty jokes about William Preese (with an outrageous Italian accent that stood out quite clearly in morse code).

The signal must of passed through a black-hole.

.. Oh, this story is familiar, did Chuck say something to this effect a few years ago?    Cheesy
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Ms. Tisha Hayes, AA4HA
Lookout Mountain, Alabama
WZ7U
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Posts: 1073




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« Reply #34 on: January 29, 2018, 09:20:38 PM »

Oh. No.
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G3RZP
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Posts: 1213




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« Reply #35 on: January 30, 2018, 02:21:09 AM »

The Great Northern Railway over here had an interesting system that was still in use in the 1950s. Instead of a sounder, there was a needle deflected to the right or left, which hit a bar that emitted a tone, one high and one low. One was for dots and one for dashes, so it was effectively an FSK system. The only advantage I can think of for it was that it had the usual advantage of double current keying.
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N0YXB
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Posts: 1542




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« Reply #36 on: January 30, 2018, 06:55:41 AM »

I think I heard Gugielmo Marconi in a CW broadcast from 1899. He was telling dirty jokes about William Preese (with an outrageous Italian accent that stood out quite clearly in morse code).

The signal must of passed through a black-hole.

Wow,   Wink
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N9AOP
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Posts: 1148




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« Reply #37 on: January 30, 2018, 08:27:42 AM »

Tisha, perhaps it was a long delayed echo.
Art
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N8YX
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Posts: 1339




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« Reply #38 on: January 30, 2018, 02:24:13 PM »

Do not summon Cthulhu.
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K7KBN
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Posts: 3674




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« Reply #39 on: January 31, 2018, 04:52:14 PM »

Cthulhu fhtagn.

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73
Pat K7KBN
CWO4 USNR Ret.
W4AMP
Member

Posts: 3




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« Reply #40 on: February 04, 2018, 11:11:11 PM »

WOW

« Last Edit: February 04, 2018, 11:17:02 PM by W4AMP » Logged
WZ7U
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Posts: 1073




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« Reply #41 on: February 05, 2018, 01:14:58 PM »

I'd tell you nuh uh.  Wink
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K9MHZ
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Posts: 1725




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« Reply #42 on: February 05, 2018, 07:07:59 PM »

.. Oh, this story is familiar, did Chuck say something to this effect a few years ago?    Cheesy

Something about WWII era AM broadcasts, if I remember correctly.  I’m sure he doesn’t though, with the alcoholic haze at work on his brain.
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K8AXW
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Posts: 7036




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« Reply #43 on: February 05, 2018, 11:01:51 PM »

Sounds like Tisha found a source of the same stuff the rest of us one using!   

                                            Roll Eyes


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A Pessimist is Never Disappointed!
WZ7U
Member

Posts: 1073




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« Reply #44 on: February 06, 2018, 12:23:14 AM »

Do not summon Cthulhu.

This. Please. And especially his minion.
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