2、 Product application:

Morse code learning;

Morse code decoding;

Morse code coding;

3、 Technical parameter table:

Number Project Parameters Unit Remarks

1. Working voltage 7-12 VDC

2. Working current<50 mA

3 dimensions 65 * 45 * 20 mm length x width x height

4. Module interface:

(1) Interface P1:

VDD: Power positive terminal interface.

GND: Power ground interface.

(2) Signal input interface J1: It is a 3.5mm audio input interface.

(3) Signal output interface J2: It is a 3.5mm audio output interface.

Adjust the input (range 700Hz~3000Hz) through the VF-IN potentiometer

Adjust the output signal volume through the V-OUT potentiometer

4、 Interface display and operation instructions:

(1) Key Description:

UP: Self adding key.

DOWN: Self subtraction key.

Enter: Clear screen/send signal.

FUN: Receive signal/send signal selection.

4.1 Receiving CW codes

Interface display font:

The first line reads "Receive:"

Second line

Key operation:

UP: Not used;

DOWN: Not used;

Enter: Clear screen

FUN: Switching (receiving CW code/sending CW code)

Note: The received CW code is displayed on the second line.

4.2. Sending CW code

Interface display font:

The first line reads "Send: 5"

The second line "5645"

Key operation:

UP: Self adding key;

DOWN: Self subtraction key;

ENTER: Send selected CW code

FUN: Switching (receiving CW code/sending CW code)

Note: The issued CW code is displayed on the second line.