K1EL Systems LLC
WKUSB, with a WinKeyer IC, is K1EL's original CW interface for the PC. It provides a convenient way to connect your PC to an amateur radio transceiver and send Morse both under computer control and by iambic paddle. Morse keying that is generated by a PC based application is prone to timing problems that are a result of the multitasking nature of Windows and other operating systems. All it takes is a long disk search or slow peripheral access to upset the intricate timing of Morse letters. This shows up even more at higher speeds such as you would find in a CW contest. Winkeyer replaces PC generated Morse and produces perfectly timed elements at speeds up to 99 WPM. In addition, WinKeyer provides an optical isolation between your PC and radio to prevent ground loops and electrical noise problems. If that's not enough, WinKeyer gives you a complete standalone keyer with speed control, message buttons, and a paddle interface. It is hard to find a contest or logging app that does not support WinKeyer. K1EL created the Winkeyer interface back in 2001 and did all the work convincing software developers to incorporate it into their applications.

WKUSB is a fully assembled and tested product, we no longer offer it in kit form. 

WKUSB Features
Click for more pictures













Want to learn more about WinKeyer ?
Read this White Paper by K1EL.

WKUSB Documentation
WKUSB Rev C Product Brief
WKUSB Rev C User Guide
WKscan - WKUSB port locator
WK3demo Test Application
WK3tools Keyer Utility Application
Winkeyer3 IC Webpage
CH341SER.exe USB Driver (2023 version)
Windows CH340 Driver (.zip file) (2023 version)
How to restore factory defaults
How to Remap a USB Port
WK3 Firmware Upgrade Information
WK Apps For Mac OSX
How to Setup N1MM+ for WKUSB
Applications that support WinKeyer
Pre Rev C Files
WKUSB Rev B User Guide
FTDI USB Controller Drivers

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Excellent WKUSB video review by G0POT
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Copyright 2000-2023 - K1EL Systems LLC
Twitter: @k1elsystems
News: K1EL Systems Blog
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REV C is the current shipping  version.
Rev C uses the CH340 USB IC.  Please refer to the WKUSB User Guide for more information.


WKUSB Cable Options

Attention: We are not able to sell directly to EU or UK at this time. However,
Kanga UK will be selling some of our WinKeyer products soon.
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WKUSB CW Keyer Assembled/Tested $139
WKUSB OUT OF STOCK UNTIL 3/2/24