CW/Morse Decoder

Decode CW (continuous wave) Morse code from amateur radio HF bands using USB demodulation and Goertzel tone detection.

Frequency

Frequency (MHz) Enter frequency in MHz (e.g., 7.030 for 40m CW)

Band Presets

Settings

Gain (dB)

PPM Correction

CW Settings

Tone Frequency: 700 Hz

Speed: 15 WPM

Morse Reference (click to toggle)

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 ----.

Standby 0 chars

CW operates on HF bands (1-30 MHz). Requires an HF-capable SDR with direct sampling or an upconverter, plus an appropriate HF antenna (dipole, end-fed, or random wire).