[CW] Morse Code Podcasts

[D.J.J. Ring, Jr.]

I knew CP only as a restricted call, that is "only certain stations" and
not all stations.  I heard it used when using a collective call like KESO
WAUS NADM GTZM which were listed in the ITU publications.

KESO was ALL ESSO / EXXON ships,  NADM was used during Gulf War for US
Merchant ships.

73

DR

On Mon, Oct 29, 2018, 16:51 Richard Knoppow <1oldlens1 at ix.netcom.com> wrote:

>      The license requirements are set out in (I think) Sterling's
> first edition of "The Radio Manual" about 1928. In it is the
> requirement for the holder of a first telegraph to have both
> American Morse and continental code. I think American Morse was
> used on the wire lines to the radio stations so operators needed
> both.  In one interview T.R.McElroy talks about having to learn
> Continental code when he began to work for RCA. He had worked
> mostly for Western Union and could read wire Morse at high speeds
> but needed the continental code for radio work. I wonder how much
> American Morse was used in radiotelegraphy, keep in mind that it
> started with Marconi and he would have used Continental code. The
> Navy also had a system of code but it was not used very long.
>     As far as punctuation the Phillips code, used on wire lines
> mostly, had a very extensive system, including signs for
> capitalization, etc.
>      FWIW, I used to copy the press transmissions from both RCA
> and MRT stations. KPH and WCC used the conventional signs for
> quotation marks but the MRT stations used two apostrophe marks.
>      The old period sign did-dit did-dit did-dit is still listed
> in the forth edition of _Reference Data for Radio Engineers_,
> published about 1954. I tracked down the change to .-.-.- and,
> while my memory may be playing tricks, I think it was changed at
> the 1934 world wide radio conference. Why the publishers
> continued to show a sign that had been out of service for twenty
> years is beyond me.
>     Also FWIW, KPH was the only one of the five stations I heard
> press from (I include WNU) that used the call CP, meaning Call
> for Press in place of CQ. I found this listed in some older book
> but have not been able to find it again. I was listening in the
> early 1960s on my newly acquired BC-779.
>     As far as AA other than the web site I hear it on some
> traffic nets. I have to pay some attention to the context to see
> what they mean by it but you are probably right that its a
> separator.
>      I will check out the web site with the tinfoil recordings on
> it. Foil on a cylinder was Edison's first successful method.
>
>
>
>
>
>
>
> On 10/29/2018 3:56 AM, D.J.J. Ring, Jr. wrote:
> > AA isn't a comma, if I said that I spoke incorrectly.  AA is a
> > separator signal (New Line) used in portions of the address in a
> > radiogram. Paragraph signal was used in wire working practice,
> > but never in amateur or commercial radiotelegraphy practice.
> > Paragraph is dah-dah-dah-dah.
> >
> > AA was used both in American Morse practice and in Amateur Radio
> > practice, but not in commercial radiotelegraphy where ITU rules
> > and regulations (Supplement B - Telegraphy by Aural means and by
> > telegraph sounder.)
>
> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
>
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