Q code (English Wikipedia)

Franklin, 277808-Elizabeth A. "Aero 16 – Polar Route Operations". Archived from the original on 13 November 2001. Retrieved 5 September 2016.{{cite web}}: CS1 maint: numeric names: authors list (link)

books.google.com (Global: 3^rd place; English: 3^rd place)

Schroeder, Peter B. (29 December 1967). "Contact at Sea: A History of Maritime Radio Communications". Ardent Media. Archived from the original on 11 November 2024. Retrieved 28 October 2020 – via Google Books.

dtic.mil (Global: 934^th place; English: 530^th place)

jcs.dtic.mil

"Communications Instructions Operating Signals" (PDF). Combined Communications Electronics Board. April 2006. Archived from the original (PDF) on 6 September 2012. Retrieved 16 May 2014.

globalsecurity.org (Global: 540^th place; English: 541^st place)

"SM" (PDF). Archived (PDF) from the original on 16 September 2012. Retrieved 6 September 2016.

groups.google.com (Global: 2,153^rd place; English: 1,445^th place)

"The uk.radio.amateur newsgroup" (Post). 21 August 2010. Retrieved 4 August 2013.

itu.int (Global: 1,487^th place; English: 1,305^th place)

itu.int

ITU Recommendation ITU-R M.1172, Miscellaneous Abbreviations and Signals to be used for Radiocommunications in the Maritime Mobile Service, 1995 (PDF). Retrieved 30 October 2025.
"Appendix 13. Miscellaneous Abbreviations and Signals to be Used in Radiotelegraphy Communications Except in the Maritime Mobile Service" (PDF). Radio Regulations. Vol. 1 (revised ed.). Geneva, CH: International Telecommunication Union. 1994 [1990]. pp. 543–568. ISBN 92-61-05171-5. Archived from the original (PDF) on 7 January 2017. Retrieved 7 January 2017.
"International Morse code Recommendation ITU-R M.1677-1". itu.int. International Telecommunication Union. October 2009. Retrieved 23 December 2011.

search.itu.int

ITU RR, Radio Regulations Annexed to the International Telecommunication Convention (Atlantic City, 1947), Additional Radio Regulations, Additional Protocol, Recommendations and Resolutions, Geneva, General Secretariat of the International Telecommunication Union, 1949, Appendix 9, Miscellaneous Abbreviations and Signals to be used in Radiocommunications, Section I, Q Code, p.64 FF (PDF). Retrieved 30 October 2025.

life.itu.int

"RECOMMENDATION 1172". ITU-R M.1172. Archived from the original on 21 April 2015.

kloth.net (Global: low place; English: low place)

"List of Q-codes". Archived from the original on 24 March 2019. Retrieved 31 December 2003.

kyalami.homeip.net (Global: low place; English: low place)

"Q-Codes". Archived from the original on 23 March 2009. Retrieved 20 March 2009.

n7cfo.com (Global: low place; English: low place)

"Morsum Magnificat Q & Z Codebook for the Morse-Telegraphy" (PDF). Archived (PDF) from the original on 3 August 2024. Retrieved 20 October 2024.

portland-amateur-radio-club.org.uk (Global: low place; English: low place)

"portland-amateur-radio-club.org.uk" (PDF). Archived from the original (PDF) on 6 October 2011. Retrieved 5 September 2016.

qrz.com (Global: low place; English: low place)

"G2JL Callsign Page". QRZ Callsign Database. Archived from the original on 3 March 2024. Retrieved 2 March 2024.

skybrary.aero (Global: low place; English: 8,972^nd place)

ICAO Doc-8400, Procedures for Air Navigation Services, ICAO Abbreviations and Codes, edition 8, amendment 30, 2010.November.18 (PDF). Retrieved 30 October 2025.
ICAO Doc-8400, Procedures for Air Navigation Services, ICAO Abbreviationsand Codes, edition 8, amendment 30, 2010.November.18 (PDF). Retrieved 30 October 2025.
ICAO Doc-8400, Procedures for Air Navigation Services, ICAO Abbreviations and Codes, edition 8, Amendment 30, 2010.November.18 (PDF). Retrieved 26 October 2025.

smu.edu (Global: 7,414^th place; English: 4,196^th place)

scholar.smu.edu

ICAO and Other Agencies Dealing with Air Regulation, Eugene Pepin, Journal of Air Law and CommerceJournal of Air Law and Commerce, Volume 19, Issue 2, Article 3, 1952, S. 156. Retrieved 30 October 2025.

thefreedictionary.com (Global: 1,251^st place; English: 1,161^st place)

acronyms.thefreedictionary.com

The Free Dictionary. "Definition of QLF". The Free Dictionary. Retrieved 1 July 2016.

ukrepeater.net (Global: low place; English: low place)

"List of repeaters in the UK sorted by QTHR". Archived from the original on 10 June 2016. Retrieved 1 June 2016.

wb8ylo.wordpress.com (Global: low place; English: low place)

"Operating Signals". ARRL National Traffic System (NTS). 12 December 2014. Archived from the original on 2 April 2015. Retrieved 30 March 2015.

web.archive.org (Global: 1^st place; English: 1^st place)

Schroeder, Peter B. (29 December 1967). "Contact at Sea: A History of Maritime Radio Communications". Ardent Media. Archived from the original on 11 November 2024. Retrieved 28 October 2020 – via Google Books.
"Radio codes & signals – Florida". National Communications Magazine. Archived from the original on 24 January 1998. Retrieved 30 January 2010.
"The Q-Code". Archived from the original on 25 March 2009. Retrieved 5 September 2016.
"SM" (PDF). Archived (PDF) from the original on 16 September 2012. Retrieved 6 September 2016.
"portland-amateur-radio-club.org.uk" (PDF). Archived from the original (PDF) on 6 October 2011. Retrieved 5 September 2016.
"Q-Codes". Archived from the original on 23 March 2009. Retrieved 20 March 2009.
"Operating Signals" (PDF). Communications Instructions. March 1997. ACP 131(E). Archived from the original on 19 November 2011. Chapter 2 contains a full list of 'Q' codes
Franklin, 277808-Elizabeth A. "Aero 16 – Polar Route Operations". Archived from the original on 13 November 2001. Retrieved 5 September 2016.{{cite web}}: CS1 maint: numeric names: authors list (link)
"List of Q-codes". Archived from the original on 24 March 2019. Retrieved 31 December 2003.
"RECOMMENDATION 1172". ITU-R M.1172. Archived from the original on 21 April 2015.
"Appendix 13. Miscellaneous Abbreviations and Signals to be Used in Radiotelegraphy Communications Except in the Maritime Mobile Service" (PDF). Radio Regulations. Vol. 1 (revised ed.). Geneva, CH: International Telecommunication Union. 1994 [1990]. pp. 543–568. ISBN 92-61-05171-5. Archived from the original (PDF) on 7 January 2017. Retrieved 7 January 2017.
"Operating Signals". ARRL National Traffic System (NTS). 12 December 2014. Archived from the original on 2 April 2015. Retrieved 30 March 2015.
"FSD-218 – Field Service Form: Instructions for NTS radiogram messages" (PDF). Archived (PDF) from the original on 19 March 2015. Retrieved 30 March 2015.
"Morsum Magnificat Q & Z Codebook for the Morse-Telegraphy" (PDF). Archived (PDF) from the original on 3 August 2024. Retrieved 20 October 2024.
"G2JL Callsign Page". QRZ Callsign Database. Archived from the original on 3 March 2024. Retrieved 2 March 2024.
"Capitalizing on your Capital Project". ARRL.org. American Radio Relay League. Archived from the original on 7 August 2016. Retrieved 1 July 2016.
"Communications Instructions Operating Signals" (PDF). Combined Communications Electronics Board. April 2006. Archived from the original (PDF) on 6 September 2012. Retrieved 16 May 2014.
"List of repeaters in the UK sorted by QTHR". Archived from the original on 10 June 2016. Retrieved 1 June 2016.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Great Britain, Post Office (October 1909). Handbook for wireless telegraph operators working installations licensed by His Majesty's postmaster-general. London: His Majesty's Stationery Office. appendix iii. OCLC 40616664.

Q code (English Wikipedia)

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jcs.dtic.mil

globalsecurity.org (Global: 540th place; English: 541st place)

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itu.int (Global: 1,487th place; English: 1,305th place)

itu.int

search.itu.int

life.itu.int

kloth.net (Global: low place; English: low place)

kyalami.homeip.net (Global: low place; English: low place)

n7cfo.com (Global: low place; English: low place)

portland-amateur-radio-club.org.uk (Global: low place; English: low place)

qrz.com (Global: low place; English: low place)

skybrary.aero (Global: low place; English: 8,972nd place)

smu.edu (Global: 7,414th place; English: 4,196th place)

scholar.smu.edu

thefreedictionary.com (Global: 1,251st place; English: 1,161st place)

acronyms.thefreedictionary.com

ukrepeater.net (Global: low place; English: low place)

wb8ylo.wordpress.com (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

worldcat.org (Global: 4th place; English: 4th place)

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archive.org (Global: 6^th place; English: 6^th place)

arrl.org (Global: low place; English: 7,257^th place)

boeing.com (Global: 1,664^th place; English: 1,611^th place)

books.google.com (Global: 3^rd place; English: 3^rd place)

dtic.mil (Global: 934^th place; English: 530^th place)

globalsecurity.org (Global: 540^th place; English: 541^st place)

groups.google.com (Global: 2,153^rd place; English: 1,445^th place)

itu.int (Global: 1,487^th place; English: 1,305^th place)

skybrary.aero (Global: low place; English: 8,972^nd place)

smu.edu (Global: 7,414^th place; English: 4,196^th place)

thefreedictionary.com (Global: 1,251^st place; English: 1,161^st place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 4^th place; English: 4^th place)