CW — short for Continuous Wave — is the amateur radio term for Morse code transmission. It is the oldest and most respected operating mode in ham radio, and for good reason: a CW signal can punch through interference that defeats voice communication, reach farther on less power, and be decoded by a trained operator with nothing but a simple receiver and their ears.

This guide covers everything a new ham needs to know to get started with CW Morse code.

Why CW Still Matters in Ham Radio

  • Range — A 5-watt CW signal can reach stations thousands of kilometres away that a 100-watt voice signal cannot
  • Noise immunity — The narrow bandwidth of CW cuts through interference that drowns out SSB voice
  • Minimal equipment — A simple crystal radio and a straight key is all you need to get on the air
  • Emergency reliability — When antennas are damaged and power is limited, CW keeps working
  • Community — The CW community is one of the most active and welcoming in amateur radio

Licence note: Most countries no longer require a Morse code test for an amateur radio licence. However, many operators learn it anyway because of the operating advantages and the rich tradition it carries.

Equipment You Need

📻
Transceiver
Any modern HF transceiver supports CW mode. Popular beginner choices include the Icom IC-7300 or Yaesu FT-991A.
$500–$1500
🔑
Morse Key
Start with a straight key — simple, cheap, reliable. Later upgrade to a paddle key for faster speeds. The Kent straight key is a classic beginner choice.
$20–$80
🎧
Headphones
Good headphones dramatically improve your ability to copy weak CW signals. Closed-back headphones block background noise best.
$30–$150
📡
Antenna
A simple wire dipole cut for your target band works perfectly for CW. Many operators start with a 40m or 20m dipole.
$20–$100

CW Operating Frequencies

CW is allocated specific sub-bands on each amateur frequency band. These are the most commonly used:

  • 160m — 1.800–1.838 MHz (night-time, regional)
  • 80m — 3.500–3.600 MHz (popular for beginners, regional/continental)
  • 40m — 7.000–7.040 MHz (excellent for medium distance, very active)
  • 20m — 14.000–14.070 MHz (the most popular DX band worldwide)
  • 15m — 21.000–21.150 MHz (great when solar conditions allow)
  • 10m — 28.000–28.150 MHz (excellent during solar maximum)

A Typical CW Contact (QSO)

Here is what a standard CW contact looks like. CW uses standardised abbreviations to keep exchanges short:

Example QSO
CQ CQ CQ DE W1ABC W1ABC K
W1ABC DE G3XYZ G3XYZ K
G3XYZ DE W1ABC GE OM RST 599 QTH BOSTON NAME JOHN BK
TNX JOHN RST 579 QTH LONDON NAME PETER BK
TNX PETER FB QSO 73 DE W1ABC SK
73 TNX DE G3XYZ SK

Translated: W1ABC calls CQ (any station), G3XYZ responds, they exchange signal reports (RST), locations (QTH), and names, then sign off with 73 (best regards).

Essential CW Abbreviations to Learn First

  • CQ — Calling any station
  • DE — From (identifies the sender)
  • K — Go ahead (invitation to transmit)
  • SK — End of contact
  • 73 — Best regards
  • RST — Signal report (Readability, Strength, Tone)
  • QTH — Location
  • QSL — Confirmed / I acknowledge
  • QRM — Interference from other stations
  • QSB — Signal fading
  • TNX / TKS — Thanks
  • OM — Old man (friendly term for any male operator)
  • YL — Young lady (any female operator)
  • FB — Fine business (excellent!)

How to Get Started — Step by Step

1

Get your licence

In most countries a Foundation or Technician licence allows HF CW operation. Study guides are free online — the ARRL and RSGB both publish excellent resources.

2

Learn the alphabet first

Use our Morse Alphabet page or a tool like LCWO.net to learn all 26 letters and 10 numbers. Target 10–13 WPM to start.

3

Get a straight key and practice sending

Connect the key to your radio or a practice oscillator. Spend 15 minutes daily sending random letters, then words, then the standard QSO format above.

4

Listen before transmitting

Tune around the CW sub-bands and copy what you hear. Start with slow stations (look for QRS in their CQ — means "please send slower"). RBN (Reverse Beacon Network) shows you live CW activity.

5

Make your first QSO

Find a slow CQ on 40m or 80m and respond. Keep it simple — exchange RST, QTH, name, and 73. Most operators are patient with beginners. Just send QRS if you need them to slow down.

Speed Progression Guide

  • 5–8 WPM — Beginner. Copy individual letters, short words
  • 10–13 WPM — Novice. Can handle basic QSOs with help
  • 15–18 WPM — Intermediate. Comfortable ragchewing (casual conversation)
  • 20–25 WPM — Proficient. Competes in contests, handles DX pileups
  • 30+ WPM — Expert. Contest operators, military-trained operators

Tip: The jump from 13 to 20 WPM is where most operators get stuck. The key is to stop spelling letter-by-letter and start hearing whole words as single sound patterns. This comes with time and daily listening — not with faster drilling.

Practice With Our Translator

Use our Morse translator to convert QSO phrases, Q codes, and abbreviations — hear them at different speeds to train your ear before going on air.

Open Morse Code Translator