Q-CODES
If you thought you knew all the Q-Codes, we think this list will surprise you. The abridged definitions of the "official" codes are derived from a very detailed list compiled by Jim, G4RGA, using information extracted from Allied Communications Publication 131(B), Amendment 1. The current codes were assigned meanings by the International Telecommunications Union in 1959, but the idea of Q-Codes was first mooted at the Berlin International Radiotelegraph Conference of 1906. A formal list of Q-Codes was instituted at the London Radiotelegraph Convention of 1912.
Also included, are the "unofficial" meanings assigned by the American Radio Relay League (ARRL) to QEX and QST and to codes in the QNA to QNZ series, which are defined in the ARRL Handbook for Radio Amateurs and should only be used in amateur CW nets. These net codes should not be used in casual amateur CW conversations or in phone nets. When used by the Amateur Service, meanings assigned to codes in the QNA to QNZ series by other Services do not apply. The Amateur Service also uses three unofficial "four letter Q-Codes", QRSS, QSLL and QTHR, which are also included. Thanks to Denzil, G3KXF, for providing this additional information. Denzil also points out that Robert Harris, in his book "Enigma", defines QRJ, QWP, QXA, QXH and QZE as having meanings different from those officially recognised. It is open to debate as to whether these are accurate definitions of codes used by the German Military during the Second World War or are simply errors. I have also included some alternative meanings suggested by Bob Zinn, N5BZ, although the exact
source and authenticity of these are unknown.
Q-Codes in the QAA to QNZ series are reserved for the Aeronautical Service and are defined in ICAO Procedures for Air Navigation Services (PANS), Abbreviations and Codes (Doc 8400). Those in the QOA to QOZ series are reserved for the Maritime Services and are defined in ITU document RR1990, Appendix 14, while those in the QRA to QUZ series are reserved for all Services and are defined in Appendices 13 and 14 of the same document. Q-Codes in the QVA to QZZ series are not defined and are intended for other uses.
Most, but not all, of the codes can be used either as a statement or a question, depending on the context of their use, but I have only shown the question form in my list of Q-Codes. These Q-Codes were intended for CW use, where the question form would be denoted by following the code with a question mark (..--..). When using the ARRL definitions of codes in the QNA to QNZ series, no question mark is necessary, even though the meaning may be interrogatory. Radio amateurs, and some professional operators, also use these codes on telephony, where the context is more obvious.
Also, in amateur radio use, Q-Codes are often used as an abbreviation for a longer phrase. For example, QTH is used to indicate the location of the station as in "My QTH is Storrington", whereas QTH actually means "What is your position in latitude and longitude (or according to some other recognised location system)" or "My position is ...". Abbreviated meanings of other Q-Codes, together with the meanings of jargon and standard abbreviations are given in the abbreviations and jargon section.
List of Q-Codes
QAA Unassigned
QAB May I have clearance
from ... to ... at ...(height)
above ...(datum).
QAC Unassigned
QAD Unassigned
QAE Unassigned
QAF Will you advise me when
you are/were at/over
...(place)
QAG Arrange your flight in
order to arrive over
...(place) at ...(time)
QAH What is you height above
...(datum)
QAI What is the essential
aircraft (not
communications)
traffic
QAJ Unassigned
QAK Is there any risk of
collision
QAL Are you going to land at
...(place) or Has
aircraft landed at ...(place)
QAM What is the latest
available meteorological
observation for ...(place)
QAN What is the surface wind
direction and speed at
...(place)
QAO What is the wind
direction, in degrees TRUE, and
the speed at ...(place)
QAP Shall I listen for you
on ... kHz/MHz
QAQ Am I near a prohibited
area
QAR May I stop listening on
the watch frequency for ...
minutes
QAS Unassigned
QAT Unassigned
QAU I am about to jettison
fuel
QAV Are you able to home on
your DF equipment
QAW I am about to carry out
overshoot procedure
QAX Unassigned
QAY Will you advise me when
you pass ...(place) bearing
090 degrees
QAZ Are you experiencing
communication difficulties due
to a storm
QBA What is the horizontal
visibility at ...(place)
QBB What is the amount, type
and height of the cloud
base at ...(place)
QBC Report meteorological
conditions at...(position) at
...(time)
QBD How much fuel have you
remaining
QBE I am about to wind in my
aerial
QBF Are you flying in cloud
QBG Are you flying above
cloud
QBH Are you flying below
cloud
QBI Is flight under IFR
compulsory at ...(place)
QBJ What is the amount, type
and height of the cloud
top at ...(place)
QBK Are you flying with no
cloud in your vicinity
QBL Unassigned
QBM Has ...(callsign) sent
any message for me
QBN Are you flying between
two layers of cloud
QBO What is the nearest
aerodrome where flight under
VFR is permissible
QBP Are you flying in and
out of cloud
QBQ Unassigned
QBR Unassigned
QBS Ascend or descend to
...(figures and units) height
above ...(datum)
QBT How far along the runway
can the observer see the
runway lights. (See notes at the end of this list for a possible
alternative meaning).
QBU Unassigned
QBV Have you reached the
...(figures and units) height
above ...(datum)
QBW Unassigned
QBX Have you left the
...(figures and units) height
above ...(datum)
QBY Unassigned
QBZ Report your flying
conditions in relation to clouds
QCA May I change from ... to
...(figures and units)
height above ...(datum)
QCB Delay is being caused by
...(reason)
QCC Unassigned
QCD Unassigned
QCE When may I expect
approach clearance
QCF Delay indefinite.
Expect approach clearance
not later than ... hours
QCG Unassigned
QCH May I taxi to ...(place)
QCI Make a 360 degree turn
immediately, turning to the
...(right/left)
QCJ to QCL Unassigned
QCM Unassigned but see notes
at the end of this list
for a possible meaning.
QCN to QCR Unassigned
QCS My reception on ...
frequency has broken down
QCT to QCW Unassigned
QCX What is your full
callsign
QCY I am working on trailing
aerial
QCZ Unassigned
QDA Unassigned
QDB Have you sent message
... to ...(callsign)
QDC to QDE Unassigned
QDF What is your D-value at
...(position)
QDG Unassigned
QDH Unassigned but see notes
at the end of this list
for a possible meaning.
QDI to QDK Unassigned
QDL Do you intend to ask me
for a series of bearings
QDM Indicate the MAGNETIC
heading for me to steer
towards you, with no wind
QDN Unassigned
QDO Unassigned
QDP Will you accept control
or responsibility of ...
now, or at ... hours
QDQ Unassigned
QDR What is my MAGNETIC
bearing from you, or from
...(callsign)
QDS Unassigned
QDT Are you flying in visual
meteorological conditions
(VMC)
QDU Cancel my IFR flight plan
QDV Are you flying in a
horizontal visibility of less
than ...(figures and units)
QDW Unassigned
(Used by the Russian
Military to mean:- Shall I go to/change to/ listen on a frequency of
... kHz)
QDX to QDZ Unassigned
QEA May I cross the runway
ahead of me
QEB May I turn at the
intersection
QEC May I make a 180 degree
turn and return down the
runway
QED Shall I follow the pilot
vehicle
QEE Unassigned
QEF Have I/you reached
my/your parking area
QEG May I leave the parking
area
QEH May I move to the
holding position for runway
number ...
QEI Unassigned
QEJ May I assume position
for take-off
QEK Are you ready for
immediate take-off
QEL May I take-off and make
a ...(left/right) hand turn
after take-off
QEM What is the condition of
the landing surface at
...(place)
QEN Shall I hold my position
QEO Shall I clear the runway
or landing area
QEP to QER Unassigned
QES Is a right hand circuit
in force at ...(place)
QET to QEW Unassigned
QEX Unassigned, but adopted
by the American Radio Relay
League in the title of its journal called "QEX incorporating
Communications
Quarterly".
QEY Unassigned
QEZ Unassigned
QFA What is the
meteorological forcast for ...(flight,
route etc.)
QFB The
approach/runway/approach and runway lights are
out of order
QFC What is the amount, type
and height of the cloud
base above ...(datum)
QFD Is the ... visual beacon
at ...(place) in operation
QFE What is the atmospheric
pressure, at aerodrome
elevation, at ...(place)
QFF What is the atmospheric
pressure, converted to mean
sea level, at ...(place)
QFG Am I overhead
QFH May I descend below the
clouds
QFI Are the aerodrome lights
lit or Please
light the aerodrome lights
QFJ Unassigned
QFK Unassigned
QFL Will you send up
pyrotechnical lights
QFM What height above
...(datum) should I maintain/are
you maintaining
QFN Unassigned
QFO May I land immediately
QFP Will you give me the
latest information concerning
... at ...(place)
QFQ Are the approach and
runway lights lit
QFR Does my landing gear
appear damaged
QFS Is the radio facility at
...(place) in operation
QFT Between what heights
above ...(datum) has ice
formation been observed
QFU What is the MAGNETIC
direction or number of the
runway to be used
QFV Are the floodlights
switched on or Please
switch on the floodlights
QFW What is the length of
the runway in ...(figures and
units)
QFX I am working on a fixed
aerial or Work on a
fixed aerial
QFY Please report the
present meteorological landing
conditions at ...(place)
QFZ What is the aerodrome
meteorological forecast for
...(place)
QGA Unassigned
QGB Unassigned
QGC There are obstructions
to the ...(left/right) of
the runway
QGD Are there any
obstructions on my track that equal
or exceed my altitude
QGE What is my distance to
your station or to
...(place)
QGF Unassigned
QGG Unassigned
QGH May I land using
...(procedure/facility)
QGI Unassigned
QGJ Unassigned
QGK What track should I make
good or What track
are you making good
QGL May I enter the
...(control area/zone) at
...(place)
QGM Leave the ...(control
area/zone)
QGN May I be cleared to land
at ...(place)
QGO Landing is prohibited at
...(place)
QGP What is my number for
landing
QGQ May I hold at ...(place)
QGR Unassigned
QGS Unassigned
QGT Fly for ... minutes on a
heading that maintains a
reciprocle track
QGU Fly for ... minutes on a
MAGNETIC heading of ...
degrees
QGV Do you see me or
Can you see the aerodrome
or
Can you see ...(aircraft)
QGW Does my landing gear
appear to be down and in place
QGX Unassigned
QGY Unassigned
QGZ Hold on ... direction of
... facility
QHA to QHD Unassigned
QHE Will you inform me when
you are on ... leg of
approach
QHF Unassigned
QHG May I enter traffic
circuit at ...(figures and
units) above ...(datum)
QHH Are you making an
emergency landing
QHI Are you (or is ...)
...(waterbourne/on land)
QHJ to QHP Unassigned
QHQ May I make a ...
approach at ...(place) or
Are you making a ... approach?
QHR to QHY Unassigned
QHZ Shall I circle the
aerodrome (or go around)?
QIA Unassigned
QIB Unassigned
QIC May I establish
communication with ...(callsign) on
... kHZ/MHz
QID Unassigned
QIE Unassigned
QIF What frequency is
...(callsign) using
QIG to QIZ Unassigned
QJA Is my ...(tape/mark and
space) reversed
QJB Will you use ...(radio /
cable / telegraph /
teletypwriter / telphone / receiver / transmitter / reperforator)
QJC Will you check your
...(transmitter-distributor /
auto-head / perforator / printer / printer motor / keyboard / antenna
system)
QJD Am I transmitting in
...(letters/figures)
QJE Is my frequency shift
...(too wide/too
narrow/correct)
QJF My signal as checked by
monitor ...(locally/as
radiated) is satisfactory
QJG Shall I revert to
automatic relay
QJH Shall I run ...(my test
tape/a test sentence)
QJI Will you transmit a
continuous ...(mark/space)
QJJ Unassigned
QJK Are you receiving a
...(continuous mark/continuous
space/
mark bias/space bias)
QJL to QJZ Unassigned
QKA I have effected rescue
and am proceeding to
...(base)
QKB Unassigned
QKC The sea conditions at
...(place) permit
...(alighting but not take-off/extremely hazardous alighting)
QKD Unassigned
QKE Unassigned
QKF May I be relieved at ...
hours
QKG Will relief take place
when ...(ident) establishes
...(visual/communications) contact with survivors
QKH Report details of the
parallel sweep to be
conducted
QKI to QKL
Unassigned
QKM Has the location of the
survival craft been marked
QKN Aircraft plotted
(believed to be you) in position
... at ... hours
QKO What other units are
taking part in the operation
QKP What pattern of search
is being followed
QKQ to QKV
Unassigned
QKW What has the rescue
vessel or rescue aircraft
recovered
QKX Unassigned
QKY Are you in the search
area designated as
...(lat/long or designator)
QKZ What is the estimated
drift of the survival craft
QLA Unassigned
QLB Will you monitor
...(callsign) and report range,
quality, etc.
QLC to QLE Unassigned
QLF Unassigned but
unofficially and facetiously
sometimes said to mean "are you sending Morse with your left foot" when
the
quality of the sending is poor,
or "please send with your left foot" when the Morse is so bad
that sending with the left foot could be an improvement.
QLG Unassigned
QLH Will you use
simultaneous keying on ... frequency
and ... frequency
QLI to QLU
Unassigned
QLV Is the ... radio
facility still required
QLW to QLZ Unassigned
QMA to QMG Unassigned
QMH Shift to transmit and
receive on ... kHz/MHz
QMI Report the vertical
distribution of cloud at
...(position)
QMJ to QMT Unassigned
QMU What is the surface
temperature and dew point at
...(position)
QMV Unassigned
QMW At what heights above
...(datum) are the zero
celsius isotherms
QMX What is the air
temperature at ...(position) at
...(units and figures) height above ...(datum)
QMY Unassigned
QMZ Have you any amendments
to the flight forecast in
respect of sections of the route yet to be traversed
QNA Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Answer in prearranged order". (This code
should
only be used by the Net Control Station).
QNB Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Act as relay station between ..... and
.....".
(This code should only be used by the Net Control Station).
QNC Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "All net stations copy. I have a message
for all
net stations".
QND Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning"Net is directed (controlled by net control
station)".
(This code should only be used by the Net Control Station).
QNE What indication will my
altimeter give on landing
at ...(place). Also adopted by the ARRL, for use only in CW nets, as
meaning
"Entire net stand by". (This code should only be used by the Net
Control
Station).
QNF Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Net is free (not controlled)".
QNG Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Take over as net contol station".
QNH What should I set on the
sub-scale of my altimeter
so that the instrument would indicate my elevation if I were on the
ground at
your station. Also adopted by the ARRL, for use only in CW nets, as
meaning
"Your net frequency is high".
QNI Between what heights
above ...(datum) has
turbulence been observed at ...(position). Also adopted by the ARRL,
for use
only in CW nets, as meaning "Net stations report in" OR
"I am reporting into the net". (Follow with a list of traffic or QRU).
QNJ Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Can you copy me".
QNK Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Transmit messages for ..... to .....".
(This code
should only be used by the Net Control Station).
QNL Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Your net frequency is low".
QNM Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "You are QRMing the net. Stand by".
(This
code should only be used by the Net Control Station).
QNN Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Net control station is ....." OR "What
station
has net control".
QNO I am not equipped to
give the information/provide
the facility requested Also adopted by the ARRL, for use only in CW
nets, as
meaning "Station is leaving the net".
QNP Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Unable to copy you" OR "Unable to copy
.....".
QNQ Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Move frequency to ..... and wait for ..... to
finish
handling traffic. Then send him traffic for .....".
QNR I am approaching my
point of no return. Also
adopted by the ARRL, for use only in CW nets, as meaning "Answer .....
and
receive traffic". (This code should only be used by the Net
Control
Station).
QNS Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Following stations are in the net" (Follow with
list),
when used by Net Control Station OR "Request list of stations
in the
net", when used by other net members.
QNT What is the maximum gust
speed of the wind at
...(place). Also adopted by the ARRL, for use only in CW nets, as
meaning "I
request permission to leave the net for ..... minutes".
QNU Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "The net has traffic for you. Stand
by". This
code should only be used by the Net Control Station.
QNV Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Establish contact with ..... on the
frequency. If
successful, move to ..... and send him traffic for .....". (This
code
should only be used by the Net Control Station).
QNW Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "How do I route messages for .....".
QNX Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "You are excused from the net", when used by Net
Control
Station OR "Request to be excused from the net", when used by
other net
members.
QNY What is the present
weather, and intensity thereof,
at ...(place). Also adopted by the ARRL, for use only in CW nets, as
meaning
"Shift to another frequency, or to .....kHz, to clear traffic with
.....".
(This code should only be used by the Net Control Station).
QNZ Unassigned, but adopted
by the ARRL, for use only
in CW nets, as meaning "Zero beat your signal with mine".
QOA to QOZ The
series QOA to QQZ, inclusive,
have been reserved for
QPA to QPZ the
Maritime Services but no meanings
have been assigned
QQA to QQZ to date.
QRA What is the name of your
station
QRB How far, approximately,
are you from my station
QRC What
authority/administration settles the accounts
of your station
QRD Where are you bound and
where are you from
QRE What is your estimated
time of arrival at
...(place)
QRF Are you returning to
...(place)
QRG Will you tell me my
exact frequency or that of
...(callsign)
QRH Does my frequency vary
QRI How is the tone of my
transmission
QRJ How many radio telephone
calls have you to book.
(See notes at the end of this list for possible alternative meanings).
QRK What is the
intelligibility of my signals or those
of ...(callsign)
QRL Are you busy
QRM Are you being interfered
with
QRN Are you troubled by
static
QRO Shall I increase
transmitter power
QRP Shall I decrease
transmitter power
QRQ Shall I send faster
QRR Are you ready for
automatic operation. (Also
used by the Russian Military to mean:- Shall I start working using
simplex
encrypted CW)
QRS Shall I send more slowly
QRSS Officially unrecognised code, but used by the
Amateur
Radio Service to mean "Send extremely slowly" This means
speeds of
one word per minute or less and is a specialised mode used in
sub-noise-level
communication on the VLF bands. This mode requires special
sending and
decoding techniques.
QRT Shall I stop sending
QRU Have you anything for me
QRV Are you ready
QRW Shall I inform
...(callsign) that you are calling
him on ... kHz/MHz
QRX When will you call me
again on ... kHz/MHz.
Must I wait
QRY What is my turn
QRZ Who is calling me
QSA What is the strength of
my signals or those of
...(callsign)
QSB Are my signals fading
QSC Are you a cargo vessel
QSD Is my keying defective
QSE What is the estimated
drift of the survival craft.
(See notes at the end of this list for a possible alternative meaning).
QSF Have you effected
rescue. (See notes at the
end of this list for a possible alternative meaning).
QSG Shall I send ...(number)
telegrams at a time
QSH Are you able to home on
your D/F equipment.
(See notes at the end of this list for a possible alternative meaning).
QSI Will you inform
...(callsign) that I have been
unable to break in
QSJ What is the charge to be
collected to
...(callsign), including your charge
QSK Can you hear me between
your signals and, if so,
can I break in
QSL Can you acknowledge receipt
QSLL Officially unrecognised code, but used by the
Amateur
Radio Service to mean "I will send you a QSL card for this contact
after I
receive one from you"
QSM Shall I repeat the last
telegram which I sent to
you
QSN Did you hear me or
...(callsign) on ... kHz/MHz
QSO Can you communicate with
...(callsign) direct or by
relay
QSP Will you relay to
...(callsign), free of charge
QSQ Have you a doctor on
board or Is ...(named
person) on board
QSR Shall I repeat the call
on the calling frequency.
(See notes at the end of this list for a possible alternative meaning).
QSS What working frequency
will you use
QST Unassigned, but adopted
by the American Radio Relay
League to mean "CQ ARRL members". Also the title of the
ARRL's
official journal.
QSU Shall I send or reply on
this frequency or on ...
kHz/MHz
QSV Shall I send a series of
V's on this frequency or
on ... kHz/MHz
QSW Will you send on this
frequency or on ... kHz/MHz
QSX Will you listen to
...(callsign) on ... kHz/MHz
QSY Shall I change to
transmission on another frequency
QSZ Shall I send each word
or group more than once
QTA Shall I cancel telegram
number ...
QTB Do you agree with my
counting of words
QTC How many telegrams have
you to send
QTD What has the rescue
vessel or rescue aircraft
recovered
QTE What is my TRUE bearing
from you or from
...(callsign)
QTF Will you give me the
position of my station
according to the bearings taken by the D/F stations which you control
QTG Will you send two dashes
of ten seconds each
followed by your callsign repeated ... times on ... kHz/MHz
QTH What is your position in
latitude and longitude (or
according to any other indication)
QTHR Officially unrecognised code, but adopted by
the RSGB to
mean "Name and address correct in the UK Call Book"
QTI What is your TRUE track
QTJ What is your speed
QTK What is the speed of
your aircraft in relation to
the earth's surface
QTL What is you TRUE heading
QTM What is your MAGNETIC
heading
QTN At what time did you
depart from ...(place)
QTO Are you airborne or
Have you left dock/port
QTP Are you going to
alight/land or Are you
going to enter dock/port
QTQ Can you communicate with my
station by means of the
international code of signals
QTR What is the correct time
QTS Will you send your
callsign for tuning purposes or
frequency measurement
QTT The identification
signal which follows is
superimposed on another transmission
QTU What are the hours
during which your station is
open
QTV Shall I stand guard for
you on the frequency of
...kHz/MHz
QTW What is the condition of
survivors
QTX Will you keep your
station open for further
communication with me
QTY Are you proceeding to
the position of the incident
and, if so, when do you expect to arrive
QTZ Are you continuing the
search
QUA Have you news of
...(callsign)
QUB Can you give me, in the
following order,
information concerning:- the direction in degrees TRUE and the speed of
the
surface wind, present weather, visibility and amount, type and height
of cloud
base above the surface elevation at ... (place)
QUC What is the number or
other identification of the
last message you received from me or from ...(callsign)
QUD Have you received the
urgency signal sent by
...(callsign)
QUE Can you use telephony in
...(language), with
interpreter if necessary, if so, on what frequencies
QUF Have you received the
distress signal sent by
...(callsign)
QUG Will you be forced to
alight or land
QUH Will you give me the
present barometric pressure at
sea level
QUI Are your navigation
lights working
QUJ Will you indicate the
TRUE track to reach you
QUK Can you tell me the
condition of the sea observed
at ...(place)
QUL Can you tell me the
swell observed at ...(place)
QUM May I resume normal
working or Has the
distress traffic ended
QUN Will vessels in my
immediate vicinity please
indicate their position, TRUE course and speed
QUO Shall I search for
...(aircraft/ship/survival
craft) in the vicinity of...(position)
QUP Will you indicate your
position by
...(searchlight/black smoke trail/pyrotechnic lights)
QUQ Shall I train my
searchlight nearly vertical on a
cloud, occulting if possible and, if your aircraft is seen or heard,
deflect the
beam up
wind and on the water or land to facilitate
your landing
QUR Have survivors
...(received survival equipment/been
picked up by a rescue vessel/been reached by ground rescue party)
QUS Have you sighted
survivors or wreckage. If so
in what position
QUT Is position of incident
marked
QUU Shall I home ship or
aircraft to my position
QUV What is my MAGNETIC
bearing from you or from
...(callsign)
QUW Are you in the search
area designated as
...(lat/long or designator)
QUX Will you indicate the
MAGNETIC course for me to
steer towards you or ...(callsign) with no wind
QUY Is position of survival
craft marked
QUZ Unassigned
QVA to QVZ No
"official" meanings for the series
QVA to QZZ, inclusive, have
QWA to QWZ been
allocated to date, but some
groups are used by the Russian
QXA to QXZ military
and the German police.
See the notes below for further
QYA to QYZ
information.
QZA to QZZ
NOTES
The ARRL has assigned "unofficial" meanings to QEX and QST and to all
codes in
the QNA to QNZ series. These are included in the above
list. Also
included, are
the meanings of the officially unrecognised four letter codes QRSS,
QSLL and
QTHR.
Chris Cramer DF5KX
has a
very comprehensive list of Q-Codes on his web site, which includes
suggested
definitions for many of the officially unassigned groups. The
only snag,
for English speakers, is that his list is written in German!!
The following codes are used by the Russian Military:-
QDW See main list above
QRR See main list above
QWH Shall I send on
frequency ... kHz
QYR Shall I start working on
81Baud RTTY
QYS Shall I start working on
duplex radiotelephony
QYT Shall I start working on
MS-5 multiplex
The following codes are used by the German Police:-
QZE Your frequency is
high. Decrease your
frequency
QZF Your frequency is
low. Increase your
frequency
QZP You have/I have
transmitter trouble
QZT You have/I have receiver
trouble
QZY You are unreadable
Robert Harris, in his book "Enigma", states that QRJ, QWP, QXA, QXH and
QZE have
the meanings stated below, but the authenticity of these definitions is
open to
debate. However, the stated meaning of QZE is similar to that in German
Police
usage.
QRJ Your signals are too weak
QWP Observe Regulations
QXAn My message consists of n cipher groups
QXH Broadcast your traffic
QZE Your frequency is too
high
Bob Zinn, N5BZ, has suggested the following alternative meanings, but
he is
unable to determine the exact source for these, although he thinks they
come
from an
American Merchant Marine publication.
QBT Am I missing dots
QCM Is there a defect in my
transmission
QDH What is causing the
present interference
QRJ Are you receiving me
badly
QSE Are my signals distinct
QSF Are my automatic
transmissions good
QSH Must I send one telegram
at a time, repeating it
twice
QSR Has the distress call
from ... been attended to?