[CW] Updated Wikipedia Entry on "CQ" giving citations for established facts

[David J. J. Ring, Jr.]

I've updated the Wikipedia Entry on "CQ" giving citations for long 
established facts.

I thank Bill Burns of https://atlantic-cable.com/ a longtime historian 
and members of the Antique Wireless Association 
<https://www.antiquewireless.org/>, Society of Wireless Pioneers 
<http://sowp.org>, and Veteran Wireless Operators Association 
<http://vwoa.org> for their continued assistance and supplied resources 
to make these needed corrections.

 From Wikipedia, the free encyclopedia
For other uses, see CQ (disambiguation) 
<https://en.wikipedia.org/wiki/CQ_(disambiguation)>.
<https://en.wikipedia.org/wiki/File:CQ_de_DG2RBH.ogg>0:05CQ call of 
German amateur radio station DG2RBH on the 80 m band ("Hello CQ from 
Delta Golf 2 Romeo Bravo Hotel")

*CQ* is a station code used by wireless 
<https://en.wikipedia.org/wiki/Wireless> operators derived from long 
established telegraphic practice on undersea cables and landlines, 
particularly used by those communicating in Morse code 
<https://en.wikipedia.org/wiki/Morse_code>, (  ▄▄▄ ▄ ▄▄▄ ▄ 
   ▄▄▄ ▄▄▄ ▄ ▄▄▄ ), but also by voice operators, to make a general call 
(called a /CQ call/). Transmitting the letters /CQ/ on a particular 
radio <https://en.wikipedia.org/wiki/Radio> frequency 
<https://en.wikipedia.org/wiki/Frequency> means that the transmission is 
an broadcast or "General Call" to anyone listening, and when the 
operator sends "K' or says "Go Ahead" it is an invitation for any 
licensed amateur radio operators listening on that frequency to respond. 
It is widely used in amateur radio 
<https://en.wikipedia.org/wiki/Amateur_radio>.^[1] 
<https://en.wikipedia.org/wiki/CQ_(call)#cite_note-Sessions1974-1>


    History and usage[edit
    <https://en.wikipedia.org/w/index.php?title=CQ_(call)&action=edit&section=1>]

The CQ station code was^[2] 
<https://en.wikipedia.org/wiki/CQ_(call)#cite_note-OL-2>  originally 
used by landline and undersea cable telegraphy operators in the United 
Kingdom <https://en.wikipedia.org/wiki/United_Kingdom>. The oldest 
reference found to the station code CQ is contained in The Telegraphist. 
Edited by W. Lynd, Volume 1 1886. ^[3] 
<https://en.wikipedia.org/wiki/CQ_(call)#cite_note-3>  which states on 
p. 15 under "Alphabetical Codes and Abbreviations": "CQ All Stations". 
Additionally, the telegraphic station code "CQ" was mentioned in "The 
Telegraphist. Edited by W. Lynd, Volume 1 1886" ^[4] 
<https://en.wikipedia.org/wiki/CQ_(call)#cite_note-4>

<https://en.wikipedia.org/wiki/File:Massie_Wireless_Station_%22PJ%22_Spark_Sound.ogg>0:08Demonstration 
of the spark-gap transmitter at Massie Wireless Station 
<https://en.wikipedia.org/wiki/Massie_Wireless_Station> sending Morse 
code ("CQ DE PJ")

CQ was adopted by the Marconi Company 
<https://en.wikipedia.org/wiki/Marconi_Company> in 1904 for use in 
wireless telegraphy 
<https://en.wikipedia.org/wiki/Wireless_telegraphy> by spark-gap 
transmitter <https://en.wikipedia.org/wiki/Spark-gap_transmitter>, and 
was adopted internationally at the 1912 London International 
Radiotelegraph Convention 
<https://en.wikipedia.org/wiki/International_Radiotelegraph_Convention_(1912)>, 
and is still used.^[5] 
<https://en.wikipedia.org/wiki/CQ_(call)#cite_note-5>


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