F6DQM Software - Interfacing your computer

Using the serial port DTR or RTS signals to command the PTT or CW line of a transmitter (no galvanic insulation) :

Using the serial port DTR or RTS signals to command the PTT or CW line of a transmitter (galvanic insulation) :

Using the printer port service signals to command the PTT or CW line of a transmitter (no galvanic insulation) :

Using the printer port service signals to command the PTT or CW line of a transmitter (galvanic insulation) :

How to key your transceiver into CW mode in using audio morse signals generated by CW_Player :

Another simple circuit to key your transmitter from the audio morse signals generated by CW_Player (by N7AGK)

Building a simple audio oscillator that you will key and input the audio signal into CW_Player for monitoring :

How to connect your Morse key to the computer gameport (joystick) :

How to connect your Morse key to the computer serial port (with battery or with DTR/RTS) :

How to connect your Morse key to a mouse :

How to connect the squelch signal of your receiver to the computer serial port (for SIMPLEX  software) :

More examples to connect your transceivers to the computer for SIMPLEX software operations are described in the pc_tx.bmp file that is included in the simplex.zip file.

If your computer has no serial port or no game port, maybe you can use USB to serial or USB to gameport adaptors.