Ham Radio Solutions CW Hotline

Ham Radio Solutions is pleased to offer CW Hotline, a WiFi connected CW tool. CW Hotline was designed to provide a way to key a remote radio station in CW mode, but can be also used as a private Morse code link to friends. Think “The Bat Phone” for CW. It is available with either a built in straight key or paddles, or neither if only external keys will be used. Once it is configured with the local WiFi information, just power up, it will link with selected peers and be ready to send and receive.

CW Hotline features include:

CW Hotline Assembly Manual v0.6 (Current)

CW Hotline Assembly Manual v0.51

CW Hotline User Manual

CW Hotline Case Drilling Template

Download our OpenSCad/STL files to 3D print your own CW Hotline case. Bob, WO6W and W7HLO have also designed 3D printable cases.

You can join us, along with many other users, on our Discord Server.

Check out the Feb 2023 QST article on CW Hotline.

Check out the YouTube videos about CW Hotline from Red Summit RF & HAM Radio For Non-Techies

Buy CW Hotline

CW Hotline kits are available in 2 assembly styles. See assembly manual for details.
All CW Hotlines now come with a pre-drilled and pre-cut case. When ordering a kit, specify if you prefer a built-in straight key or iambic paddles (you choose at build time, both are included), OR to only use an external key. The pre-cut case is different for each choice.

Choose US or international shipping. International shipping includes CA, EU, UK, IN, MX, JP, PH, and AU. All other shipping destinations please contact us before ordering.
Kit $50 USD + shipping Built and Tested $100 USD + shipping
Assembly Style
Built In Key
Shipping Destination
Built In Key
Shipping Destination

This tab can be used to check the firmware version of CW Hotline, to update the firmware, and to change the settings.

First step is to setup CW Hotline as a serial device on the computer. Make sure it is plugged in with a USB data cable. A charging only cable will not work. If the OS does not recognize CW Hotline as a serial device, see this website for instructions on loading a driver for the CH340G chip on the CW Hotline.

Once the CW Hotline is available as a serial device, click the connect button below.

Release Notes

Current Version: