Editing Q code (section)

==Early development==
The original Q-codes were created, ''circa'' 1909, by the British government as a "List of abbreviations ... prepared for the use of British ships and coast stations licensed by the [[Postmaster General of the United Kingdom|Postmaster General]]".<ref>{{cite book |last=Great Britain|first=Post Office|date=October 1909|title=Handbook for wireless telegraph operators working installations licensed by His Majesty's postmaster-general|oclc=40616664|location=London|publisher=His Majesty's Stationery Office|at=appendix iii}}</ref> The Q-codes facilitated communication between maritime radio operators speaking different languages, so they were soon adopted internationally. A total of forty-five Q-codes appeared in the "List of Abbreviations to be used in Radio Communications", which was included in the Service Regulations affixed to the [[International Radiotelegraph Convention (1912)|Second International Radiotelegraph Convention in London]] (The convention was signed on July 5, 1912, and became effective July 1, 1913.)

The following table reviews a sample of the all-services Q-codes adopted by the 1912 convention:
{| class="wikitable plainrowheaders" summary="First 12&nbsp;Q-codes listed in the<br/>1912 International Radiotelegraph Convention, including meaning and sample use"
|+ First twelve Q-codes listed in the 1912 International Radiotelegraph Convention Regulations
|-
!scope="col"| Code
!scope="col"| Question
!scope="col"| Answer or notice
|-
!scope="row"| '''QRA'''
| What ship or coast station is that?
| This is ____.
|-
!scope="row"| '''QRB'''
| What is your distance?
| My distance is ____.
|-
!scope="row"| '''QRC'''
| What is your true bearing?
| My true bearing is ____ degrees.
|-
!scope="row"| '''QRD'''
| Where are you bound for?
| I am bound for ____.
|-
!scope="row"| '''QRF'''
| Where are you bound from?
| I am bound from ____.
|-
!scope="row"| '''QRG'''
| What line do you belong to?
| I belong to the ____ Line.
|-
!scope="row"| '''QRH'''
| What is your wavelength in meters? 
| My wavelength is ____ meters.
|-
!scope="row"| '''QRJ'''
| How many words have you to send? 
| I have ____ words to send.
|-
!scope="row"| '''QRK'''
| How do you receive me? 
| I am receiving (1–5).<br>''(1) is unreadable and (5) is perfect.''
|-
!scope="row"| '''QRL'''
| Are you busy?
| I am busy.
|-
!scope="row"| '''QRM'''
| Are you being interfered with? 
| I am being interfered with.
|-
!scope="row"| '''QRN'''
| Are the [[Radio atmospherics|atmospherics]] strong? 
| Atmospherics (noise) are very strong.
|}