www.dl2rum.de

Hello.
I want to set the "USB Interface III" to CW.
Try to set in Preferences-CW, but not registered this model.
How should I do it?
Greetings.
Manuel EA7TB

This interface has no CW keyer included.

Hello.
I enclose the Interface Specifications:

A low cost, high performance USB interface that provides high quality build-in sound card for digital modes, with optically isolated transceiver CAT control, CW and PTT.
These USB Interfaces provide a solution to the lack of available Serial (COM) ports on laptop and newer desktop computers for controlling your radio.

The USB interface III includes full optical isolation of all control signals (radio control, CW, PTT and Squelch) and built-in USB sound card with front panel level controls for transmit via your transceiver's Accessory audio input and the constant level (pre-volume control) audio output.

Greetings.
Manuel EA7TB

You should consider to use a MKII, a DKII or a K1EL Winkeyer.