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Prosigns for Morse code
Prosigns for Morse code
Published: 2016/01/12
Channel: Audiopedia
Abbreviations Used in cw Communications
Abbreviations Used in cw Communications
Published: 2016/01/23
Channel: Ray Anderson
Prosigns for Morse code
Prosigns for Morse code
Published: 2016/03/16
Channel: Mazdy Lucks
Prosigns for Morse code HD
Prosigns for Morse code HD
Published: 2016/03/17
Channel: Keith Patete
A technique to help learn Morse code, part 3 of 3
A technique to help learn Morse code, part 3 of 3
Published: 2014/02/11
Channel: Douglas Harder
HeartBeatsStudios Prosign
HeartBeatsStudios Prosign
Published: 2010/07/05
Channel: HeartBeatsStudios
MY PROSIGN!!!(THANKS TO BETH417!!!!)
MY PROSIGN!!!(THANKS TO BETH417!!!!)
Published: 2009/12/26
Channel: couldreallycarelesss
My prosign
My prosign
Published: 2011/01/16
Channel: SelyFreaky
My new prosign
My new prosign
Published: 2017/08/03
Channel: xsparksflyx
New ProSign yUlIaNaSpAcE
New ProSign yUlIaNaSpAcE
Published: 2010/01/25
Channel: Roger Spears
New prosign!! :D
New prosign!! :D
Published: 2010/05/04
Channel: Gottalovewebkinz101
CW (Morse code) SOTA 1st Activation of Harmony Mtns HP, UT 2017
CW (Morse code) SOTA 1st Activation of Harmony Mtns HP, UT 2017
Published: 2017/05/06
Channel: mkc0pr
Prosign for xjonasxfannx
Prosign for xjonasxfannx
Published: 2010/02/15
Channel: PenPenProductions
prosign!!!
prosign!!!
Published: 2009/08/06
Channel: jonessachick101
My New Prosign! :D
My New Prosign! :D
Published: 2010/07/26
Channel: NileyGottaLove
#.CONTEST PROSIGN - WatermellonSplash
#.CONTEST PROSIGN - WatermellonSplash
Published: 2009/09/20
Channel: xnightfeverx
iLucyx96 Prosign Request
iLucyx96 Prosign Request
Published: 2009/08/29
Channel: Cienalynn
Prosign for You!
Prosign for You!
Published: 2009/06/18
Channel: AZDF4545
New ProSign
New ProSign
Published: 2009/12/07
Channel: xXSungirl93Xx
prosign :)
prosign :)
Published: 2010/04/09
Channel: xforeveryourstrulyx
Prosign For DemiLovatoGirl23 :)
Prosign For DemiLovatoGirl23 :)
Published: 2010/07/23
Channel: selenagomez299
New Prosign[DON
New Prosign[DON'T WATCH]
Published: 2009/12/31
Channel: TheFugitiveCrush
New Prosign
New Prosign
Published: 2009/06/07
Channel: LoveSoftball46
Practice Morse code CW recognition
Practice Morse code CW recognition
Published: 2015/12/30
Channel: ThePress Man
PROSIGN ..
PROSIGN ..
Published: 2010/05/16
Channel: leloliveformusicx3
prosign
prosign
Published: 2009/05/12
Channel: hottiee1996
My New Prosign
My New Prosign
Published: 2009/03/16
Channel: ajfan4ever
PROSIGN!!!
PROSIGN!!!
Published: 2010/01/03
Channel: SupaMegProductions
My new prosign
My new prosign
Published: 2009/10/26
Channel: 101valpar
My New Prosign x
My New Prosign x
Published: 2009/06/07
Channel: lailaroxx
{DORKIEKHLOE./////
{DORKIEKHLOE./////
Published: 2009/12/25
Channel: dorkiekhloe
ProSign
ProSign
Published: 2009/10/08
Channel: Megzer1992
Our Prosign! xD
Our Prosign! xD
Published: 2009/04/19
Channel: ZanessaAndNileyLove
ProSign
ProSign
Published: 2009/12/27
Channel: OrphanRoxMySox
my semxxii prosign:)
my semxxii prosign:)
Published: 2009/10/19
Channel: YasmineBratzfanBFF16
U.S. NAVY SIGNAL CORPS FLAG SEMAPHORE /  BLINKER / MORSE CODE TRAINING FILM  85664
U.S. NAVY SIGNAL CORPS FLAG SEMAPHORE / BLINKER / MORSE CODE TRAINING FILM 85664
Published: 2016/04/19
Channel: PeriscopeFilm
A prosign I made [:
A prosign I made [:
Published: 2009/07/31
Channel: xLovelyChickx3
ProSign For You 2
ProSign For You 2
Published: 2009/09/03
Channel: SunshiineDora
Jileyseriesfan Prosign =]
Jileyseriesfan Prosign =]
Published: 2009/12/23
Channel: mizzjj101
Fearless Piink
Fearless Piink's prosign
Published: 2010/02/05
Channel: fearlesspiink
new prosign
new prosign
Published: 2010/04/22
Channel: xstormyclouds
prosign read description
prosign read description
Published: 2009/10/07
Channel: justmileyc
Official PROSIGN FOR DRAMASTARS123!
Official PROSIGN FOR DRAMASTARS123!
Published: 2010/01/16
Channel: DramaStars123
UnderTheMoon8494 prosign
UnderTheMoon8494 prosign
Published: 2009/01/19
Channel: MrSjOnAs101678
My Prosign
My Prosign
Published: 2009/06/17
Channel: lacrosseplayer89
ProSign For You 3
ProSign For You 3
Published: 2009/09/03
Channel: SunshiineDora
My New ProSign!
My New ProSign!
Published: 2009/09/13
Channel: purplecows13xo
New Prosign!
New Prosign!
Published: 2016/01/13
Channel: xCanYouFeelTheLovex
Prosign For xStarryEyedTutorialz
Prosign For xStarryEyedTutorialz
Published: 2010/07/23
Channel: xstarryeyedtutorialz
Prosign
Prosign
Published: 2010/12/01
Channel: katerzpie1992
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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Morse code prosigns or procedural signals are dot/dash sequence symbols that do not represent written characters, but instead are used to manage transmission and formatting of messages. [1] Prosigns are symbols that have specific functions, such as indicating changes of transmission communications protocol status and indicating (or initiating) textual white space formatting.[2] Morse prosigns play a role similar to the role played by the nonprinting control characters of teleprinter and computer character set codes such as Baudot or ASCII. Morse code prosign symbols have been used since the 1860s.

In the early decades of telegraphy many operating efficiency improvements were incorporated into telegraph operations, including the introduction of Morse symbols known as procedure signs or prosigns. Prosigns were not defined by the inventors of Morse code, but were gradually introduced over time, and greatly improved the speed and performance of daily high-volume message handling operations.

Improvements to the legibility of formal written telegraph messages (telegrams) by means of white space formatting were thus supported by the creation of the additional new procedure symbols. With one exception, namely the Morse symbol for the alphabetic letter "K" (▄▄▄▄▄▄▄▄), which also serves as a prosign when used alone at the end of a transmission, the Morse code prosigns are unique dot/dash sequence code symbols. Mastery of these special Morse code prosigns is an important part of becoming a fluent and efficient telegrapher/telegraphist.

Prosign symbol representations[edit]

Prosigns may be represented in printed material either by a sequence of dots and dashes, or by a sequence of letters, which, if sent without the normal inter-character spacing (concatenated), correspond to the prosign symbol.

For example, the Morse code dot/dash sequence (▄▄▄▄▄▄▄▄) which indicates the action of spacing down two lines on a page in order to create the white space indicating the start of a new paragraph. Other than the two line white spaces themselves, there is no actual written or printed character representation or symbol for a new paragraph. Thus, in general, typical Morse code prosigns do not have written or printed textual character representations in the original source information.

Of methods used to represent Morse prosign symbols there are at least three:

  1. Unique dot/dash sequences, e.g. (▄▄▄▄▄▄▄▄).
  2. Unique audible sounds, e.g. "Dahdidididah"
  3. Non-unique printed or written concatenated character groups, e.g. BT (alternatively typeset <BT>)

Table of Morse prosigns and useful Morse code abbreviations[edit]

Table of Morse Code Prosigns and Useful Morse Code Abbreviations [1]
Prosign Code Symbol Meaning Comments Memory Aid Verbalization
AA ▄▄▄▄▄▄▄▄ New Line (space down one line) Typewritten as Carriage Return, Line Feed (CR-LF). "Add A line" "didahdidah"
AR ▄▄▄▄▄▄▄▄ New Page (space down several lines) Message separator. Single-line display may use printed "+". "All Rendered" "didahdidahdit"
AS ▄▄▄▄▄ Wait Respond with: SN, or characters "R" (Roger) or "C" (Confirm). "Wait A Sec" "didahdididit"
BT ▄▄▄▄▄▄▄▄ New Paragraph (space down two lines) Typewritten CR-LF-LF. Single-line display may use printed "=". "Begin Two" "dahdidididah"
CT ▄▄▄▄▄▄▄▄▄▄▄ Attention Sometimes written as KA. Commencing important transmission. "Copy This" "dahdidahdidah"
HH ▄▄ Error (Sometimes "????" is used.) Sometimes written EEEEEEEE. Always followed by correct text. "Error" "didididididididit"
K ▄▄▄▄▄▄▄▄ Invitation for any station to transmit Lone alphabetic character "K" at the end of a transmission. "OK, go ahead" "dahdidah"
KN ▄▄▄▄▄▄▄▄▄▄▄ Invitation for named station to transmit Go ahead, specific named station. "OK, Named" "dahdidahdahdit"
NJ ▄▄▄▄▄▄▄▄▄▄▄▄▄▄ Shift to Wabun code Shift from Morse code to Wabun code Kana characters. "Next Japanese" "dahdididahdahdah"
SK ▄▄▄▄▄▄▄▄ End of contact Sometimes written as VA. "Silencing Key" "didididahdidah"
SN ▄▄▄▄▄ Understood Often written VE. Alternatively shift from Wabun to Morse code. "Sho' 'Nuff" "didididahdit"
SOS ▄▄▄▄▄▄▄▄▄▄▄ International distress signal Signals imminent danger to life or property. (About this sound listen ) "Save Our Souls" "didididahdahdahdididit"
BK ▄▄▄▄▄▄▄▄▄▄▄▄▄ Break (Morse abbreviation) Abbreviation for "back-to you". "BreaK" "dahdididit dahdidah"
CL ▄▄▄▄▄▄▄▄▄▄▄▄▄ Closing (Morse abbreviation) Abbreviation for "closing station". "CLosing" "dahdidahdit didahdidit"

See also[edit]

References[edit]

  1. ^ a b ARRL Inc. (8 October 2012). ARRL Operating Manual (10 ed.). ARRL. ISBN 978-0872595965. 
  2. ^ http://www.arrl.org/files/file/Public%20Service/MPG304A.pdf

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