[MRCA] code wheel
Robert Newberry
N1XBM at amsat.org
Sat Apr 25 09:59:39 EDT 2015
When I was a kid there was a place I think in Vermont that made a wooden
train whistle. On the side it had all of the morse code signals for the
different train operations.
N1XBM
Apparare Scientor
Paratus Communicare
Allstar Node # 27086, 41540, 41812
On Apr 25, 2015 9:55 AM, "Christopher Bowne" <aj1g at sbcglobal.net> wrote:
> Forgot the link...
>
> Train horn - Wikipedia, the free encyclopedia
> <http://en.wikipedia.org/wiki/Train_horn#Common_horn_signals>
>
>
> [image: image]
> <http://en.wikipedia.org/wiki/Train_horn#Common_horn_signals>
>
>
>
>
>
> Train horn - Wikipedia, the free encyclopedia
> <http://en.wikipedia.org/wiki/Train_horn#Common_horn_signals>
> A train horn is an air horn which serves as an audible warning device on
> diesel and electric locomotives. Its primary purpose is to alert persons
> and animals to the...
> View on en.wikipedia.org
> <http://en.wikipedia.org/wiki/Train_horn#Common_horn_signals>
> Preview by Yahoo
>
>
>
>
> On Saturday, April 25, 2015 9:51 AM, Christopher Bowne <
> aj1g at sbcglobal.net> wrote:
>
>
> Link to another train signal page that include a number of audio files of
> various types of train horns. Almost all of them apparently were made of
> the Q signals sent by trains approaching grade crossings.
>
> As I was listening to them, I thought of what the world would be like if
> Morse came up with communications system that instead of using electrical
> circuits for transmission, relayed messages from town to town using loud
> whistle or horn blasts of Morse code! What a cacachonous world we would
> live in! I guess we do have somethng similar in the fire station whistle
> alarm codes. The local Westerly RI downtown fire station still sounds
> coded blasts that idenfity fire locations, especially for major buildings
> in town. And they still test the whistle every day at exactly at noon!
> Several of the factories around here still have shift start whistles,
> which also are used as warning signals for emergencies.
>
>
> On Saturday, April 25, 2015 9:27 AM, Christopher Bowne <
> aj1g at sbcglobal.net> wrote:
>
>
> Link to details on train whistle signals. Interesting that the signals
> are described as a series of long and short whistle blasts, and all seem to
> be directly translatable to Morse characters, however, no mention of a
> relationship to Morse in the article. The "Q" signal approaching a grade
> crossing is apparently universally used at least here in the US...will keep
> an ear out for it around here, the Amtrak mainline along the shore between
> NYC and Boston passes within a half mile of here, we hear the whistles
> (actually now air horns on the diesels and electrics) all the time. Until
> a few years ago, all the trains passing through here were diesel powered,
> the electrified section toward NYC did not start until New Haven, I think
> the entire shoreline route between NYC and Boston is now electrified.
>
>
> Train whistle - Wikipedia, the free encyclopedia
> <http://en.wikipedia.org/wiki/Train_whistle>
>
>
>
>
> [image: image] <http://en.wikipedia.org/wiki/Train_whistle>
>
>
>
>
>
> Train whistle - Wikipedia, the free encyclopedia
> <http://en.wikipedia.org/wiki/Train_whistle>
> A train whistle or air whistle (originally referred to as a steam trumpet)
> is an audible signaling device on a steam locomotive used to warn that the
> train is appro...
> View on en.wikipedia.org <http://en.wikipedia.org/wiki/Train_whistle>
> Preview by Yahoo
>
>
>
>
>
>
>
>
>
>
> On Friday, April 24, 2015 2:32 PM, Tim <timsamm at gmail.com> wrote:
>
>
> I had wondered about the "Railroad Q" signal. Apparently a holdover from
> the UK when a Royal Navy vessel had the Queen aboard. "Stand Clear" etc....
>
> Sending Q on the air horns at crossings seems to be pretty universal
> around here. Who knew? LOL
> Tim
> N6CC
>
> On Fri, Apr 24, 2015 at 5:39 AM, Rob Flory <farmer.rob.flory at gmail.com>
> wrote:
>
> The railroad engineers have such funky fists that it was not until I read
> in an old magazine that they send Morse Q at grade crossings that I
> recognized it as such. Their spacings are all over the place.
>
> I also did not recognize that the Rush instrumental YYZ is based on the
> Morse ID for Toronto airport, that they must have heard coming out of the
> cockpit on their way back from tour. Again, funky timing.
>
> RF
>
> On Thu, Apr 23, 2015 at 2:05 PM, B. Smith <smithab11 at comcast.net> wrote:
>
> Interesting, it also gives the spacing information.
> Z
>
>
> On 4/23/2015 1:43 PM, Al Klase wrote:
>
> Breck,
>
> 3:1 anywhere I've ever seen it. Is the Bureau of Standards good enough?
>
>
>
>
> Al
>
> Al Klase – N3FRQ
> Jersey City, NJhttp://www.skywaves.ar88.net/
>
> On 4/23/2015 11:18 AM, B. Smith wrote:
>
> Interesting. Is the 3:1 a published International Standard or perhaps
> just a ham standard that has developed over the years?
>
>
> Z
>
> On 4/23/2015 2:56 AM, Mike Morrow wrote:
>
> What about that dot to dash ratio. Looks like about 5:1? A ratio
> of 3:1 would be quite a bit of "swing"...
>
> A dash:dot ratio of 3:1 would be NO swing at all. That is the exact
> definition of the proper lenghth of dash compared to dot for zero
> weighting.
>
>
>
>
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>
>
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
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> Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> On Saturday, April 25, 2015 9:27 AM, Christopher Bowne <
> aj1g at sbcglobal.net> wrote:
>
>
> Link to details on train whistle signals. Interesting that the signals
> are described as a series of long and short whistle blasts, and all seem to
> be directly translatable to Morse characters, however, no mention of a
> relationship to Morse in the article. The "Q" signal approaching a grade
> crossing is apparently universally used at least here in the US...will keep
> an ear out for it around here, the Amtrak mainline along the shore between
> NYC and Boston passes within a half mile of here, we hear the whistles
> (actually now air horns on the diesels and electrics) all the time. Until
> a few years ago, all the trains passing through here were diesel powered,
> the electrified section toward NYC did not start until New Haven, I think
> the entire shoreline route between NYC and Boston is now electrified.
>
>
> Train whistle - Wikipedia, the free encyclopedia
> <http://en.wikipedia.org/wiki/Train_whistle>
>
>
>
>
> [image: image] <http://en.wikipedia.org/wiki/Train_whistle>
>
>
>
>
>
> Train whistle - Wikipedia, the free encyclopedia
> <http://en.wikipedia.org/wiki/Train_whistle>
> A train whistle or air whistle (originally referred to as a steam trumpet)
> is an audible signaling device on a steam locomotive used to warn that the
> train is appro...
> View on en.wikipedia.org <http://en.wikipedia.org/wiki/Train_whistle>
> Preview by Yahoo
>
>
>
>
>
>
>
>
>
>
> On Friday, April 24, 2015 2:32 PM, Tim <timsamm at gmail.com> wrote:
>
>
> I had wondered about the "Railroad Q" signal. Apparently a holdover from
> the UK when a Royal Navy vessel had the Queen aboard. "Stand Clear" etc....
>
> Sending Q on the air horns at crossings seems to be pretty universal
> around here. Who knew? LOL
> Tim
> N6CC
>
> On Fri, Apr 24, 2015 at 5:39 AM, Rob Flory <farmer.rob.flory at gmail.com>
> wrote:
>
> The railroad engineers have such funky fists that it was not until I read
> in an old magazine that they send Morse Q at grade crossings that I
> recognized it as such. Their spacings are all over the place.
>
> I also did not recognize that the Rush instrumental YYZ is based on the
> Morse ID for Toronto airport, that they must have heard coming out of the
> cockpit on their way back from tour. Again, funky timing.
>
> RF
>
> On Thu, Apr 23, 2015 at 2:05 PM, B. Smith <smithab11 at comcast.net> wrote:
>
> Interesting, it also gives the spacing information.
> Z
>
>
> On 4/23/2015 1:43 PM, Al Klase wrote:
>
> Breck,
>
> 3:1 anywhere I've ever seen it. Is the Bureau of Standards good enough?
>
>
>
>
> Al
>
> Al Klase – N3FRQ
> Jersey City, NJhttp://www.skywaves.ar88.net/
>
> On 4/23/2015 11:18 AM, B. Smith wrote:
>
> Interesting. Is the 3:1 a published International Standard or perhaps
> just a ham standard that has developed over the years?
>
>
> Z
>
> On 4/23/2015 2:56 AM, Mike Morrow wrote:
>
> What about that dot to dash ratio. Looks like about 5:1? A ratio
> of 3:1 would be quite a bit of "swing"...
>
> A dash:dot ratio of 3:1 would be NO swing at all. That is the exact
> definition of the proper lenghth of dash compared to dot for zero
> weighting.
>
>
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net <MRCA at mailman.qth.net>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:MRCA at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
>
>
>
> ______________________________________________________________
> MRCA mailing list
> Home: http://mailman.qth.net/mailman/listinfo/mrca
> Help: http://mailman.qth.net/mmfaq.htm
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