International Q Code is an abbreviated way to exchange
a great deal of information with a simple code. The Q Code consists
of three-letter groups with each group having a specific meaning.
Each group begins with the letter Q. Auxiliary letter groups or numbers
are also used to help define the information that is need or passed
with certain Q Code three-letter groups.
The International Q Code can be arranged in three types
of code groups according to the second letter in the three-letter
Q Code.
A. General Codes, second letter of which is R, S, T
or U. (Some used by Hams).
B. Maritime Service Codes, second letter of which is
O, P or Q.
C. Aeronautical Codes, second letter of which is A,
B, C, D, E, F, G, H, I, J, K, L, M or N.
| Signal |
Question |
Answer, Advice or Order |
| QRG |
Will you indicate my exact frequency in kilocycles? |
Your frequency is ... kc. |
| QRH |
Does my frequency vary? |
Your frequency varies. |
| QRI |
How is the tone of my transmission? |
The tone of your transmission is ...
1. Good.
2. Variable.
3. Bad. |
| QRJ |
Are you receiving me badly? Are my signals weak? |
I cannot receive you. Your signals are too weak. |
| QRK |
What is the legibility of my signals (1 to 5)? |
The legibility of your signals is ... (1 to 5). |
| QRL |
Are you busy? |
I am busy (or busy with....). Please do not interfere. |
| QRM |
Are you being interfered with? |
I am being interfered with. |
| QRN |
Are you troubled by static? |
I am troubled by static. |
| QRO |
Must I increase power? |
Increase power. |
| QRP |
Must I decrease power? |
Decrease power. |
| QRQ |
Must I send faster? |
Send faster ... (words per min.). |
| QRS |
Must I send more slowly? |
Transmit more slowly ... (w.p.m.). |
| QRT |
Must I stop transmission? |
Stop transmission. |
| QRU |
Have you anything for me? |
I have nothing for you. |
| QRV |
Are you ready? |
I am ready. |
| QRW |
Must I advise ... that you are calling him on ...
kc? |
Please advise ... that I am calling him on ... kc. |
| QRX |
When will you call again? |
I will call you again at ... hours (on ... kc.). |
| QRZ |
By whom am I being called? |
You are being called by ... |
| QSA |
What is the strength of my signals (1 to 5)? |
The strength of your signals is ... (1 to 5). |
| QSB |
Does the strength of my signals vary? |
The strength of your signals varies. |
| QSD |
Is my keying correct? Are my signals distinct? |
Your keying is incorrect; your signals are bad. |
| QSG |
Must I transmit ... telegrams (or one telegram) at
a time? |
Transmit ... telegrams (or one telegram) at a time. |
| QSK |
Shall I continue the transmission of all my traffic? |
I can hear you between my signals. Continue: I shall
interrupt you if necessary. |
| QSL |
Can you acknowledge receipt? |
I am acknowledging receipt. |
| QSM |
Shall I repeat the last telegram I sent you? |
Repeat the last telegram you sent me. |
| QSO |
Can you communicate with ... directly (or through...)? |
I can communicate with ... direct (or through...). |
| QSP |
Will you relay to ...? |
I will relay to ... free of charge. |
| QSV |
Shall I send a series of VVV....? |
Send a series of VVV. |
| QSX |
Will you listen for ... (call sign) on ... kcs? |
I am listening for ... on ... kcs. |
| QSY |
Shall I change to ... kilocycles without changing
the type of wave? |
Change to ... kc. without changing type of wave. |
| QSZ |
Shall I send each word or group twice? |
Send each word or group twice. |
| QTA |
Shall I cancel nr ... as if it had not been sent? |
Cancel nr ... as if it had not been sent. |
| QTB |
Do you agree with my word count? |
I do not agree with your word count; I shall repeat
the first letter of each word and the first figure of each number. |
| QTC |
How many telegrams have you to send? |
I have ... telegrams for you or for .... |
| QTH |
What is your position (location)? |
My position (location) is .... |
| QTR |
What is the exact time? |
The exact time is .... |
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7 MHz SSB Transceiver
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Linear Amplifier
used in 7MHz SSB Ham Radio Transceiver using 2N2222A, SL100B and BD139 |
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Hobby Circuits - Ham ( Amature ) Radio |
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7MHz
SSB Transceiver - Circuit digram and brief description of
7MHz SSB Transceiver for Hams. The circuit is designed around two numbers
of MC1496. It can push around 80 Watts with IRF840 in the final. You can
down load HTML version or the printer friendly word document. |
Morse
Code Tutor - A program (23kb) written in C++. Morse code
uses dot and dash for communication. Still it is popularly used for communication
is short wave bands. The Archive contains program source code and executable. |
AM
DSB Transmitter for Hams - circuit diagram of simple double
side band suppressed carrier (DSBSC) transmitter for hams. Circuit uses
crystal oscillator, crystal can be switched for multi band operation. |
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Ham
Radio BFO - circuit diagram of beat frequency oscillator
using BF494 and how to listen amateur radio communication on ordinary
BC receiver. |
Miniature
MW Transmitter - circuit diagram of simple medium wave transmitter
using BF494B. This simple transmitter have a range of 200 meters. |
807
and 1625 Valves - data on vacuum tubes 807 and 1625 used
in ham radio transmitters. Describes various pin voltages and different
operation modes. |
FM
Wireless Mike - low power frequency modulated transmitter
using two transistors. The circuit works with 9v power supply. |
60
Watt RF Amplifier - Soild state RF power amplifier using
IRF840. Simple and easy to construct. IRF840 can handle a maximum power
output of 125 Watts. |
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Touch
CPO - touch operated code practice oscillator using popular
timer IC555. Practice Morse code in a different way. |
Modulation
Monitor - very simple and useful circuit used to monitor
on air transmission of your low power amplitude modulated transmitter. |
Cheap
Crystal filter - Ladder filter using six 4.43MHz Crystals.
Building cheap side band filter for your bome brew SSB Rig. |
RF
Dummy Load - make this simple RF Dummy Load for off-air testing
of your radio transmitter. |
Mosquito
Repellant - very simple and easy to assemble mosquito repellant
using two transistors and handy components. |
Ceramic
Filter BFO - Receive SSB and CW transmissions
on your BC receiver. Simple BFO is build around 455 KHz Ceramic Filter. |
SSB
ADAPTOR - Build this simple adaptor to receive single side
band SSB on short wave AM receivers. |
QRP
Keyer - very simple keyer circuit using only one transistor. |
Designing
RF Probe - make your self simple and heighly useful RF probe.
An essential tool for every home brewer. |
Shorty
Forty Antenna - Do you have space limitaion to put a 40 meter
dipole. Try this Compact 40 meter antenna. |
