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uBITX (HF Transceiver for HAM) arrives and Assemble - (Assemble uBITX)

UBITX ordered a week ago arrived via DHL.
UBITX is simple HF Transceiver for Amatuer radio, but it have all mode and all band functions.

The uBITX main board and parts have been safely contained in plastic box.

Parts List

All parts were shipped correctly.

uBITX is pre-assembled with most parts as SMD.

Make the power Connect.

Connect the encoder to the cable.

Connect the CW Key Connector (Straight) to the cable. If you use CW Paddle, use a different resistor value.

pull-up by connecting the resistance value to the + line as shown below.

I finally connected most of the small parts.

Connect LCD and supply power.

It works perfectly with parts connection for about 30 minutes ~ 1 hour.


  1. Was soldering the cables all that was needed?

    1. The radio is all soldered. All we have to do is cable connections. (just above picturs)

    2. It's ice to see that is basic soldering ,and it's all with connectors.
      If I mess up I can find them and replace them. And not damage the board.
      My pixie is corroded,I don't want to do the same with an expensive board.

    3. I also made a lot of QRP transceiver including pixie.
      It only has the most basic functions of an HF All-Band radio.

      Now we can find the joy of modifying it. perhap it's uBITX Conecpt...

    4. It's made to be tinkered and hacked ,but for lots of people it's like baofeng the most economical radio out there,with the biggest price/performance radio.


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How to upgrade uBITX Firmware

uBITX is based on Arduino Nano. So uBITX's firmware upgrade method is the same as Arduino.
There are two ways to upgrade the firmware of uBITX.

The first is to compile the source from the Arduino IDE, and the second is to upload the compiled hex file using the Firmware Upgrade Tool.

I'll show you how to upload a compiled hex file as a second method.

1.Connect the uBITX's USB cable to the computer.

2.Run Device Manager on your computer.
  The way to open the Device Manager for each OS Version differs slightly.
  In most Windows, you can easily launch the Device Manager by running.

  On your computer, press the Windows key + R.

 Type devmgmt.msc and press OK Button.

On most operating systems, there will be a serial port named Ports with CH340. If so, the next step is skipped.

If the serial port is not installed as below, you need to install the driver.

Included in uBITX is the Adonano, which uses the CH340 USB To UART part.

Download the latest CH340 driver from the Internet.

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uBITX Firmware CEC Version v1.06 (changed v1.061)

I deployed 1.06 and received feedback from WSPR's beta tester, Philip (G7JUR).
It was a problem that the LPF was not automatically selected according to band selection during WSPR transmission.

Version 1.08 has been released.

I modified it soon and changed uBITX Firmware CEC Version to 1.061.
uBITX Manager also changed Version to 1.01.


I released version 1.06 which added WSPR function to uBITX.
Beta testers have been very helpful when embedding WSPR functionality. WSPR will continue to improve in the future.

By using WSPR before and after QSO, you can check where your uBITX is spreading all over the world.  If uBITX Manager is used to put WSPR information into uBITX, uBITX no longer needs any external device to transmit WSPR.

The uBITX group's excellent tester also shared a …

CAT Support uBITX Firmware CEC Version 1.01 Release(Changed from v1.0)

CAT Support uBITX Firmware CEC Version 1.01  Release (Changed from v1.0)

uBITX Firmware CEC Version 1.06 has been released.
Please click the link below.

This version of the concept is an upgrade without hardware modifications. No hardware modifications are required to use this firmware. Continuous release and testing has been done in the uBITX group. I tried to put only the basic functions that an HF transceiver should have. The features have been upgraded with the advice of people who have great ideas in the uBITX group.
It was a project that started to contribute to the original source in github. The project was intended to fix some simple bugs and request merge to the original source. And I was planning to delete the project. At the beginning of the project there was a bit of discussion about this in the uBITX group.
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