View Full Version : 'Q' Codes

20th Aug 2004, 20:00
Does anyone know where I can find a comprehensive list of the old wartime Q codes?

Artificial Horizon
20th Aug 2004, 20:26
Here are a few of the codes as printed in Issue 4 of 'Vector' Magazine 1998.

From the days of morse code transmissions:

QAM - What is the surface wind and speed?
QFR - Does my landing gear appear damaged?
QFG - Am I overhead?
QBF - Are you flying in cloud?
QRN - Are you troubled by static?
QTR - What is the correct time?
QRV - Are you ready?
QRM - Are you being interfered with?

Still in use today:

QDM - Mag. bearing to the station
QDR - Mag. bearing from the station
QNH - What should I set on subscale to indicate the elevation AMSL.
QFE: What should I set on subscale to indicate the elevation above ref. datum.

Hope these help a little.

A.H :)

Contrary to popular belief there is no correlation between the two letter after the Q and what they stood for. They are not an abbreviation, although there are some examples of it being very close to one.

20th Aug 2004, 22:09
Try here. (http://www.kloth.net/radio/qcodes.php)

22nd Aug 2004, 23:25
Thanks, Xacto,

Hams still use Q codes, even in voice transmission. In code, they are used extensively as they eliminate a lot of unnecessary words.

24th Aug 2004, 11:35
Thanks everyone!!

25th Aug 2004, 12:40

Sounds very useful. Wonder what it meant to cover originally?

James K

Cornish Jack
27th Aug 2004, 09:14
QRM was one of life's great pains if you were trying to make CW communications at long range with some piece of Air Ministry 'wireless' technology such as the 1154/55!!:{
Interference, static, general rubbish or another station transmitting on your frequency could all qualify.
The code, incidentally in its basic form was a statement i.e. ...
QRM - I am being interfered with.
The interrogative form was QRM IMI - the IMI being written with a superimposed bar and sent as one continuous character.
Nostalgia isn't what it used to be :ok:

27th Aug 2004, 10:46
Thank you for the clarification!
James K