Editing Q code (section)

===Maritime Mobile Service (QOA–QQZ)===
{{Main|Maritime Mobile Service Q Codes}}

This assignment is specified in ''RECOMMENDATION ITU-R M.1172''.<ref>{{cite web |title=RECOMMENDATION 1172 |id=ITU-R M.1172 |url=http://life.itu.int/radioclub/rr/m1172.htm |url-status=dead |archive-url=https://web.archive.org/web/20150421175748/http://life.itu.int/radioclub/rr/m1172.htm |archive-date=2015-04-21}}</ref>

Q signals are not substantially used in the maritime service. Morse code is now very rarely used for maritime communications, but in isolated maritime regions like Antarctica and the South Pacific the use of Q-codes continues. Q-codes still work when HF voice circuits are not possible due to atmospherics and the nearest vessel is one ionospheric hop away.

{| class="wikitable"
|-
! 
!'''Question ?'''
!'''Answer or advice'''
|-
|'''QOA '''
|Can you communicate by radiotelegraphy (500&nbsp;kHz)? 
|I can communicate by radiotelegraphy (500&nbsp;kHz). 
|-
|'''QOB '''
|Can you communicate by radiotelephony (2.182&nbsp;MHz)? 
|I can communicate by radiotelephony (2.182&nbsp;MHz). 
|-
|'''QOC '''
|Can you communicate by radiotelephony (channel 16 – frequency 156.8&nbsp;MHz)? 
|I can communicate by radiotelephony (channel 16 – frequency 156.8&nbsp;MHz). 
|-
|'''QOD '''
|Can you communicate with me in ____?<br/>
:{|
  |-
  | 0. Dutch   || 5. Italian
  |-
  | 1. English || 6. Japanese
  |-
  | 2. French  || 7. Norwegian
  |-
  | 3. German &nbsp; || 8. Russian
  |-
  | 4. Greek   || 9. Spanish
  |} 
|I can communicate with you in ____.<br/>
:{|
  |-
  | 0. Dutch   || 5. Italian
  |-
  | 1. English || 6. Japanese
  |-
  | 2. French  || 7. Norwegian
  |-
  | 3. German &nbsp; || 8. Russian
  |-
  | 4. Greek   || 9. Spanish
  |} 
|-
|'''QOE '''
|Have you received the safety signal sent by ____ (''name and/or call sign'')? 
|I have received the safety signal sent by ____ (''name and/or call sign''). 
|-
|'''QOF '''
|What is the commercial quality of my signals? 
|The quality of your signals is ____.<br/> 1. not commercial<br/> 2. marginally commercial<br/> 3. commercial. 
|-
|'''QOG '''
|How many tapes have you to send? 
|I have ____ tapes to send. 
|-
|'''QOH '''
|Shall I send a phasing signal for ____ seconds? 
|Send a phasing signal for ____ seconds. 
|-
|'''QOI '''
|Shall I send my tape? 
|Send your tape. 
|-
|'''QOJ '''
|Will you listen on ____ kHz (''or'' MHz) for signals of emergency position-indicating radiobeacons? 
|I am listening on ____ kHz (''or'' MHz) for signals of emergency position-indicating radiobeacons. 
|-
|'''QOK '''
|Have you received the signals of an emergency position-indicating radiobeacon on ____ kHz (''or'' MHz)? 
|I have received the signals of an emergency position-indicating radiobeacon on ____ kHz (''or'' MHz). 
|-
|'''QOL '''
|Is your vessel fitted for reception of selective calls? If so, what is your selective call number or signal? 
|My vessel is fitted for the reception of selective calls. My selective call number or signal is ____.
|-
|'''QOM '''
|On what frequencies can your vessel be reached by a selective call? 
|My vessel can be reached by a selective call on the following frequency/ies ____ (periods of time to be added if necessary). 
|-
|'''QOO '''
|Can you send on any working frequency? 
|I can send on any working frequency. 
|-
|'''QOT '''
|Do you hear my call; what is the approximate delay in minutes before we may exchange traffic? 
|I hear your call; the approximate delay is ____ minutes. 
|}