International Morse Code- A Document for learning International morse code by Biju GT VU2HBI

AARS-KL Morse Code AARS-KL (Activehams Amateur Radio Society Kerala) A Scientific Research Society registered in Kerala to promote radio amateur techniques, advanced communication methods, digital file trasfer using radio, efficient communication setup during a disaster, AARS-KL provides free training in schools / college students to promote amateur radio for modern world. This special service society dedicated to the advancement of amateur radio in our communities.

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AARS-KL International Morse Code A Document for learning Internatiional morse code by Biju Gopi Thilaka VU2HBI

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The Morse code is still widely used for amateur radio or ham radio applications. It enables ham radio contacts to be made all over the world with ease, especially when using low powers or more modest antennas. While the Morse code is not generally widely used, it still has applications for ham radio, and the above Morse code chart or Morse code table is useful to identify the main symbols used.

Length of Morse code characters In order that the Morse code characters are easy to read, it is necessary to ensure that they are the correct length. Too long or too short, and the Morse code messages can be very difficult to read as the rhythm of the different characters is destroyed. Part of the International Morse code "standard" is an agreed definition of the various lengths of dots, dashes and spaces.

• A dash is equal to three dots

• The space between elements which form the same letter is equal to one dot.

• The space between two letters is equal to three dots

• The space between two words is equal to seven dots

By keeping to these lengths the Morse code characters are much easier to read.

** For learning Morse code it is recommended that you do not try to remember dots and dashes, but remember the Morse code sounds instead. www.aars.in

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AARS-KL International Morse Code A Document for learning Internatiional morse code by Biju Gopi Thilaka VU2HBI

Letter

Morse

Letter

Morse

Digit

Morse

Punctuation Mark

Morse

A B C D E F G H I J K L M

.-...

-.-.

-.. . ..-.

--. .... .. .---..-..

--

N O P Q R S T U V W X Y Z

-.

--.--.

--..-. ... ......--..-.---..

0 1 2 3 4 5 6 7 8 9

----.---..--...-.........

-....

--...

---..

----.

Full-stop (.)

Comma (,) Colon (:) Question mark (?)

Apostrophe Hyphen (-) Slash ("/") Brackets ( Brackets ) Quotation marks At sign (@) Equals sign (=)

.-.-.--..----... ..--.. .----.

-....-..-.

-.--.

-.--..-..-. .--.-.

-...-

Notes If the duration of a dot is taken to be one unit then that of a dash is three units. The space between the components of one character is one unit, between characters is three units and between words seven units. To indicate that a mistake has been made and for the receiver to delete the last word, send ........ (eight dots).

The prosigns are combinations of two letters sent together with no space in between. The other abbreviations and Q codes are sent with the normal spacing. www.aars.in

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AARS-KL International Morse Code A Document for learning Internatiional morse code by Biju Gopi Thilaka VU2HBI

Procedural characters

Morse

Other Phrases

Abbreviation

Q Code (?)

Meaning

AA, New line

.-.-

I acknowledge receipt

.-.-.

K

QSL

AR, End of message

Over

AS, Wait

.-...

Roger

R

QSL?

Do you acknowledge?

BK, Break

-...-.-

QRX

Wait

BT, New paragraph

-...-

Be seeing you

BCNU

QRX?

Should I wait?

CL, Going off the air ("clear")

-.-..-..

You're

UR

QRV

I am ready to copy

CT, Start copying

-.-.-

QRV?

Are you ready to copy?

DO, Change to wabun code

-..---

Signal report

RST

QRL

The frequency is in use

KN, Invite a station to transmit

-.--.

Best regards

73

QRL?

Is the frequency in use?

SK, End of transmission (also VA)

...-.-

Love and kisses

88

QTH

My location is...

SN, Understood (also VE)

...-.

QTH?

What is your location?

SOS, Distress message

...---...

See you later CUL

Some letters and procedural characters are those in common use, but the ITU recommendations have also been used. This may result in Morse characters having two slightly different meanings. VA, i.e. End of Work, also is given by the ITU as understood.

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AARS-KL International Morse Code A Document for learning Internatiional morse code by Biju Gopi Thilaka VU2HBI

Q Code (?)

Question

Answer or Statement

QLE

What is your expected signal?

The expected signal is low...

QNI

May I join the net?

You may check in...

QRA

What is the name (or call sign) of your station?

The name (or call sign) of my station is ...

QRG

Will you tell me my exact frequency (or that of ...)?

Your exact frequency (or that of ... ) is ... kHz (or MHz).

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

How many voice contacts do you want to make?

I want to make ... voice contacts.

QRK

What is the readability of my signals (or those of ...)? The readability of your signals (or those of ...) is ... (1 to 5).

QRL

Are you busy?

I am busy. (or I am busy with ... ) Please do not interfere.

QRM

Do you have interference? [from other stations]

I have interference.

QRN

Are you troubled by static?

I am troubled by static.

QRO

Shall I increase power?

Increase power.

QRP

Shall I decrease power?

Decrease power.

QRQ

Shall I send faster?

Send faster (... wpm)

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AARS-KL International Morse Code A Document for learning Internatiional morse code by Biju Gopi Thilaka VU2HBI

Q Code (?)

Question

Answer or Statement

QRS

Shall I send more slowly?

Send more slowly (... wpm)

QRT

Shall I cease or suspend operation?/

I am suspending operation. /shutting off the radio

QRU

Have you anything for me?

I have nothing for you.

QRV

Are you ready?

I am ready.

QRW

Shall I inform ... that you are calling him on ... kHz ?

Please inform ... that I am calling him on ... kHz (or MHz).

QRX

Shall I standby / When will you call me again?

Please standby / I will call you again at ... (hours) on ... kHz (or MHz)

QRZ

Who is calling me?

You are being called by ... on ... kHz (or MHz)

QSA

What is the strength of my signals (or those of ... )?

The strength of your signals (or those of ...) is ... (1 to 5).

QSB

Are my signals fading?

Your signals are fading.

QSD

Is my keying defective?

Your keying is defective.

QSG

Shall I send ... telegrams (messages) at a time?

Send ... telegrams (messages) at a time.

QSK

Can you hear me between your signals?

I can hear you between my signals.

QSL

Can you acknowledge receipt?

I am acknowledging receipt.

QSM

Shall I repeat the last telegram (message) which I sent you, or some previous telegram (message)?

Repeat the last telegram (message) which you sent me (or telegram(s) (message(s)) numbers(s) ...).

QSN

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Did you hear me (or ... (call sign)) on .. kHz (or MHz)? I did hear you (or ... (call sign)) on ... kHz (or MHz).

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AARS-KL International Morse Code A Document for learning Internatiional morse code by Biju Gopi Thilaka VU2HBI

Q Code (?)

Question

Answer or Statement

QSO

Can you communicate with ... direct or by relay?

I can communicate with ... direct (or by relay through ...).

QSP

Will you relay a message to ...?

I will relay a message to ... .

QSR

Do you want me to repeat my call?

Please repeat your call; I did not hear you.

QSS

What working frequency will you use?

I will use the working frequency ... kHz (or MHz).

QST

–

Here is a broadcast message to all amateurs.

QSU

Shall I send or reply on this frequency (or on ... kHz (or MHz))?

Send or reply on this frequency (or on ... kHz (or MHz)).

QSW

Will you send on this frequency (or on ... kHz (or MHz))?

I am going to send on this frequency (or on ... kHz (or MHz)).

QSX

Will you listen to ... (call sign(s) on ... kHz (or MHz))?

QSY

Shall I change to transmission on another frequency? Change to transmission on another frequency (or on ... kHz (or MHz)).

QSZ

Shall I send each word or group more than once?

Send each word or group twice (or ... times).

QTA

Shall I cancel telegram (message)

No. ... as if it had not been sent?

I am listening to ... (call sign(s) on ... kHz (or MHz))

Cancel telegram (message) No. ... as if it had not been sent.

QTC

How many telegrams (messages) have you to send? I have ... telegrams (messages) for you (or for ...).

QTH

What is your position in latitude and longitude

QTR

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(or according to any other indication)?

My position is ... latitude...longitude

What is the correct time?

The correct time is ... hours

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AARS-KL International Morse Code A Document for learning Internatiional morse code by Biju Gopi Thilaka VU2HBI

Q Code (?)

Question

Answer or Statement

QTU

At what times are you operating?

I am operating from ... to ... hours.

QTX

Will you keep your station open for further communication with me until further notice (or until ... hours)?

I will keep my station open for further communication with you until further notice (or until ... hours).

QUA

Have you news of ... (call sign)?

QUC

What is the number (or other indication) of the

Here is news of ... (call sign).

last message you received from me (or from ... (call sign))?

The number (or other indication) of the last message I received from you (or from ... (call sign)) is ...

QUD

Have you received the urgency signal sent by ... (call sign of mobile station)?

I have received the urgency signal sent by ... (call sign of mobile station) at ... hours.

QUE

Can you speak in ... (language), – with interpreter if necessary; if so, on what frequencies?

QUF

Have you received the distress signal sent by ... (call sign of mobile station)?

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I can speak in ... (language) on ... kHz (or MHz).

I have received the distress signal sent by ... (call sign of mobile station) at ... hours.

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AARS-KL International Morse Code A Document for learning Internatiional morse code by Biju Gopi Thilaka VU2HBI

How to use additional Morse code characters The ITU gives recommendations for a variety of other Morse code characters and occurrences that need to be sent. The ITU defines methods in which these may be sent in Morse code: Percentage and per-thousand signs: To indicate the % or per thousand, the figure ), the fraction bar and the figures 0 or 00 shall be successively transmitted (i.e. 0/0 or 0/00).

A whole number, a fractional number or a fraction followed by the % or per thousand sign shall be transmitted by joining up the whole number, the fraction number or fraction to the % or per thousand sign by a single hyphen. e.g.

For 3%, send 3-0/0 and not 30/0 For 4 1/2 percent, send 4-1/2-0/0 and not 41/20/0 Minute and second signs: To transmit the minute ' and second '' signs, when such signs follow figures. For example in the case of 1'15'', the apostrophe signal ( . _ _ _ _ . ) shall be transmitted once or twice as appropriate. The signal ( . _ . . _ . ) reserved for inverted commas may not be used for the sign.

Sending whole numbers and fractions: A number that includes a fraction shall be transmitted with the fraction linked to the whole number by a single hyphen. e.g.

For 1 3/4 , send 1-3/4 For 3/4 8, send 3/4-8

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AARS-KL International Morse Code Few usefull software and mobile application for Learning morse code

IZ2UUF Morse Koch CW ( Google Play Store) -> https://play.google.com/store/apps/developer?id=IZ2UUF This is my selection to learn morse code reception using Koch Method ) G0HYN RX Morse( Google Play Store) -> https://play.google.com/store/apps/details?id=com.g0hyn.myrecorder This is one among the best morse code sounds to text convertor , usefull for training as well as as realtime reception, There are dozens of software available in Linux and Windows systems too, This is my bookmark for linux softwares fo learning morse code https://radio.linux.org.au/?sectpat=morse and few other good selection here https://www.dxzone.com/catalog/Software/Morse_Code_Training/ And finally MORSELIZER - morse with Arduino https://github.com/vicival/morselizer is here

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Thank You AARS-KL (Activehams Amateur Radio Society Kerala) A Scientific Research Society registered in Kerala to promote radio amateur techniques, advanced communication methods, digital file trasfer using radio, efficient communication setup during a disaster, AARS-KL provides free training in schools / college students to promote amateur radio for modern world. This special service society dedicated to the advancement of amateur radio in our communities.

www.aars.in

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