Single Lever Paddle For the uBITX

To connect an Iambic or single lever paddle, a small change needs to be made to the uBITX. Since a paddle requires the tip and ring, 2 resistors need to be installed. Once they are installed the uBITX will be able to use a straight key or a paddle.

First remove the key jack.
Advertisements

Remove the connection from the resistor and key pin. There is no need to disconnect the ground from the jack.

Advertisements

I took the supplied 10k and 2.2k resistors and twisted the leads from 1 side together. Solder the twisted side to the 4.7k resistor and the key pin wire. Heat shrink the connection to protect it from shorts.

Advertisements

Activation of the 2.2k resistor produces a dot and the 10k produces a dash. Typically dot is connected to Tip and dash to Ring.

While testing, I decided to make a matching Straight key and Single Lever Paddle. They look great with the uBITX!

Advertisements

Links

https://km4nmp.com/2019/10/05/installing-a-ubitx-in-a-case/

https://km4nmp.com/2019/10/06/ubitx-3-2-touch-screen/

http://www.hamskey.com/

Advertisements

Latest Posts

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this:
search previous next tag category expand menu location phone mail time cart zoom edit close