'Q' Codes

[Staple]

Does anyone know where I can find a comprehensive list of the old wartime Q codes?

[Artificial Horizon]

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.

[Xacto]

Try here. (http://www.kloth.net/radio/qcodes.php)

[rotornut]

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.

[Staple]

Thanks everyone!!

[JDK]

QRM

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

Cheers
James K

[Cornish Jack]

JDK
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:

[JDK]

Cornish,
Thank you for the clarification!
James K