CW/Morse Decoder

Decode CW (continuous wave) Morse with USB demod + Goertzel tone detection. Start with 700 Hz tone and 200 Hz bandwidth.

Frequency

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

Band Presets

Device

Gain (dB)

PPM Correction

CW Detector

Tone Frequency: 700 Hz

Bandwidth

Auto Tone Track Hold Tone Lock

Threshold + WPM

Threshold Mode

Threshold Multiplier

Threshold Offset

Manual Threshold

Minimum Signal Gate

WPM Mode

Manual Speed: 15 WPM

Lock WPM Estimator

Output

Show Raw Morse Show Decoder Logs

Decode WAV File

Runs the same CW decoder pipeline against uploaded WAV audio.

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 on HF (1-30 MHz) requires an HF-capable SDR path (direct sampling or upconverter) and an appropriate antenna.