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How to Call CQ on CW: A Practical First-QSO Script

Amateur radio operator using a straight key to call CQ from a home CW station at night

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jangel

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Calling CQ on CW can feel harder than learning the characters. The difficult part is rarely the phrase CQ CQ CQ. It is knowing when to transmit, what comes next, and how to recover when the reply is not perfectly clear.

A first contact does not need to be long. If both operators exchange callsigns, signal reports, names, locations, and a courteous closing, the QSO is already complete.

Before transmitting: listen first

Find a frequency that sounds clear and listen for long enough to understand whether another station is using it. A weak station, a station between transmissions, or a split operation may be easy to miss.

Depending on local practice and band conditions, an operator may ask whether the frequency is in use:

QRL? DE BA7MTH

QRL? asks whether the frequency is busy. Send it once or twice, then listen. If another operator answers QRL, C, or otherwise indicates activity, move to another frequency.

The ARRL guide to making a first contact also recommends listening for a clear frequency and keeping a CQ short.

A simple CW CQ

A practical general call is:

CQ CQ CQ DE BA7MTH BA7MTH K

The parts are:

ElementMeaning
CQCalling any station
DEFrom, or "this is"
BA7MTHThe calling station's callsign
KAny station is invited to reply

Two or three repetitions of CQ and two repetitions of your callsign are usually enough. Long, continuous calls occupy the frequency and can make it harder to hear a station that is trying to answer.

After the call, listen. If no one answers, wait briefly and call again. Adjusting the receiver bandwidth or tuning around your transmit frequency can help you hear a slightly off-frequency reply.

How to answer a CQ

Suppose BA7MTH is calling and K1ABC wants to answer:

BA7MTH DE K1ABC K1ABC AR

The called station's callsign comes first, followed by DE, then the answering station's callsign. Repeating your own callsign helps in noise or fading.

Some operators use a shorter answer:

BA7MTH DE K1ABC K

Both are understandable. Match the pace of the station you are calling, and do not answer faster than you can comfortably receive.

The first exchange

If BA7MTH copied the caller, a friendly first transmission might be:

K1ABC DE BA7MTH
GM TNX FER CALL
UR RST 579 579
NAME JOHN JOHN
QTH GUANGZHOU GUANGZHOU
HW?
K1ABC DE BA7MTH KN

In plain language:

  • Good morning, thanks for the call.
  • Your report is 579.
  • My name is John.
  • My location is Guangzhou.
  • How did you copy?
  • Only K1ABC is invited to answer.

KN is useful after contact has been established because it invites only the named station to transmit. The ARRL operating aid distinguishes K, which invites any station, from KN, which invites only the specific station in contact.

How to give an RST report

For CW, RST normally contains three digits:

  • R, readability: 1 to 5
  • S, signal strength: 1 to 9
  • T, tone: 1 to 9

599 means perfectly readable, extremely strong, and a very pure tone. It is common in short or contest-style contacts, but a useful report should reflect what you actually hear.

If the signal is easy to read but not very strong, 579 may be more informative. Do not worry about making the report scientifically precise. Its value is as an honest operating observation.

A complete short QSO

Here is a compact example with both sides:

BA7MTH:
CQ CQ CQ DE BA7MTH BA7MTH K

K1ABC:
BA7MTH DE K1ABC K1ABC AR

BA7MTH:
K1ABC DE BA7MTH
TNX FER CALL
UR RST 579
NAME JOHN
QTH GUANGZHOU
HW?
K1ABC DE BA7MTH KN

K1ABC:
BA7MTH DE K1ABC
R R TNX JOHN
UR RST 569
NAME MIKE
QTH BOSTON
73 ES TNX QSO
BA7MTH DE K1ABC KN

BA7MTH:
K1ABC DE BA7MTH
R TNX MIKE
73 ES HPE CUAGN
K1ABC DE BA7MTH SK

The wording can vary. CW operating is not a form that must be recited exactly. The structure matters more:

  1. Identify both stations.
  2. Send one manageable block of information.
  3. Invite the other station.
  4. Acknowledge what was received.
  5. Close clearly.

If you missed part of the reply

Real signals fade. Noise, interference, and unfamiliar sending styles can remove a character or an entire word. Asking for a repeat is normal operating, not a failure.

Useful requests include:

AGN?             Send again
CALL?            Repeat callsign
RST?             Repeat signal report
NAME?            Repeat name
QTH?             Repeat location
PSE QRS          Please send more slowly

If only one item is missing, ask for that item rather than requesting the entire transmission again.

When a partial callsign was heard, send what you copied:

K1?BC AGN?

This tells the caller which part is already known.

Sending speed and spacing

Send at a speed you can also copy. A clean 10 WPM contact is better than an unreadable 20 WPM contact.

If a slower station answers your CQ, reduce your speed. Good spacing is especially important when slowing down. Do not stretch every dit and dah into a very long element. Keep recognizable character rhythm and add more space between characters and words.

How to close the contact

A courteous close can be brief:

TNX QSO 73
K1ABC DE BA7MTH SK

73 expresses best regards. SK marks the end of the contact. If the station is going off the air entirely, some operators also use CL.

Do not send SK after every turn. It is a closing signal for the QSO, not a general invitation to transmit.

Practice before going on the air

The CW599 QSO Simulator lets you rehearse the order of CQ, RST, name, QTH, and 73 without pressure. Focus on recognizing the exchange rather than memorizing one exact script.

The CW Room is a development preview for live browser-based CW. You can listen as a guest; transmitting requires a signed-in, verified callsign. It is useful for testing timing and shared-frequency behavior, but it does not replace an amateur-radio license or compliance with radio regulations.

A first-QSO checklist

Before calling:

  • Listen carefully.
  • Check whether the frequency is in use.
  • Set a comfortable sidetone and receive bandwidth.
  • Know the information you plan to send.

During the QSO:

  • Identify both stations.
  • Send short blocks.
  • Use K or KN appropriately.
  • Ask for repeats when needed.
  • Match the other operator's speed.

At the end:

  • Confirm the essential information.
  • Send 73.
  • Close with both callsigns and SK.
  • Record the contact in your log.

The first CQ feels significant because it turns private practice into communication. Keep the call short, listen carefully, and remember that the operator answering you also wants the contact to succeed.

Sources and further reading

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