KD8CEC Amateur Radio

uBITX Setting for Extneded LPF's I find it hard to find the right title for this posting. Extneded LPF's, Hacked LPF, Improved LPF... and more Anyway, I noticed a couple of months ago that the various ways to improve the Spur of uBITX were discussed by some OM's on how to replace the LPF. This version is for users who want to modify the LPF, Users who use Stock Hardware do not necessarily have to upgrade this firmware.

Backup uBITX configuration using QR Code If you are using the CEC firmware and Nextion LCD, you can back up the configuration file in a simple way. If you have an internet-enabled mobile phone, you can back up various configuration files.

uBITX Firmware CEC Version 1.1 Release Version 1.1 is the first major release since 1.097,  I will release it after a 50-day beta test. Version 1.1 includes all additions or improvements from 1.08 to 1.09, 1.093, 1.095, 1.097 

uBITX Firmware CEC Version 1.097Beta  Release (Include  Nextion LCD, TJC LCD GUI Firmware V3, uBITX Manager V1.097, Standalone Signal Analyzer1 V0.7) Changed Standalone Signal Analyzer1 V0.5 =>  Standalone Signal Analyzer1 V0.7 uBITX firmware CEC Version is based on uBITX which has not modified anything. Prior to deployment, the 16x02 LCD with built-in is tested first. Nextion LCD, TJC LCD, 20x04 LCD and I2C LCD are not essential for using uBITX Firmware CEC version. In order to view signals with Character LCD or Nextion LCD, Signal Meter Sensor must be installed. Of course, CEC Firmware operates normally even if S-meter sensor is not installed.

Standalone Signal Analyzer (I2C Type Signal-Meter) for uBITX Create and use with Character LCD This idea was discussed in the uBITX group ( https://groups.io/g/BITX20/topics ). I used a separate Arduino to expand the limited I/O. The material needed is Arduino Nano, two resistors and one capacitor, Estimated cost is less than $3. Now, since it is the initial version, only the received signal is measured, but if it is applied a little, output power and SWR can be measured together.

Capacitor Selection and Application of S-Meter in uBITX with Nextion LCD This document is intended to illustrate some of the features added in CEC Firmware Version 1.095,  Version 1.095 has been released.  ( http://www.hamskey.com/2018/07/ubitx-firmware-cec-version-1095beta.html ) Several features have been added in Version 1.095, Most of the improvements will be covered in the deployment article.

How to use Nextion LCD #2 - Programming and application How to use Nextion LCD Series #1 Start Nextion LCD #2 Programming and application #3 - Practice for use with a transceiver #4 Applied to HF Transceiver #5 Advanced Application (Applied to various sizes)

uBITX Firmware CEC Version 1.08 Release Version 1.08 is the first major release since 1.061,  I will release it after a 50-day beta test

Introducing uBITX's Invalid Calibration Symptoms and Recovery Mode uBITX CEC Firmware supports recovery mode from version 1.075 Of course, we have been using uBITX Manager to back up uBITX's settings so far. I think this is the best way.

uBITX Firmware CEC Version 1.075 (Beta) Release The beta version 1.07x was officially released as version 1.08 http://www.hamskey.com/2018/05/ubitx-firmware-cec-version-108-release.html

Setting S.Meter to uBITX with CEC Firmware Version 1.074 Beta Version 1.074 will be distributed with uBITX Manager 1.05 within 2 days This document consists of uBITX's S.Meter setting method, examples displayed on the screen, video and so on. At the bottom of this article is example from Ham radio deluxe. CEC firmware is based on pure uBITX without hardware modifications. Other types of LCD, S.Meter, etc., can be attached as an option when you want.

How to Calibration uBITX This document will be incrementally added or changed as needed. I have received many questions about Calibration. Let me write about the experience that people and people around me have done so far. The calibration method of CEC Firmeare is the same as the original firmware. Most of the following are my experiences. I thought uBITX failed after calibration failed. After analyzing the source, I noticed that the calibration was quite difficult to succeed.

Raspberry Pi GqrxSDR with uBITX (Examples of using RTL-SDR in uBITX #4) CAT Support uBITX Firmware CEC Version supports SDR connections from Version 1.07. http://www.hamskey.com/2018/04/how-to-connect-sdr-rtl-sdr-to-ubitx-and.html

Introduction to SDR dongle connected to uBITX The question I hear frequently now is, "What SDR do uBITX connect to?" is. This is my obvious mistake. I'm missing an introduction to My SDR.

Changed extension key setting in CEC Firmware Version1.073 uBITX Firmware CEC Version supported extended key support from Version 1.072. Version 1.072 was for internal testing and released version 1.073 beta for users http://www.hamskey.com/2018/04/ubitx-firmware-cec-version-1073-beta.html

uBITX Firmware CEC Version 1.073 (Beta) Release The beta version 1.07x was officially released as version 1.08 http://www.hamskey.com/2018/05/ubitx-firmware-cec-version-108-release.html

Add extended switchs to uBITX with Firmware CEC Version 1.073 This document will be published for use as a manual for the uBITX Firmware CEC Version 1.073 Beta release. Version 1.073 will be released within a day or two as testing ends. (You can download it from github and use it, but it can be modified.)

Various LCD support in uBITX with Firmware CEC Version 1.073 Beta This document will be published for use as a manual for the uBITX Firmware CEC Version 1.073 Beta release. Version 1.073 will be released within a day or two as testing ends. (You can download it from github and use it, but it It will be modified frequently.)

Using SDR-Sharp (Examples of using RTL-SDR in uBITX #3) This document applies to most SDR Software that does not support IF-output and CAT communication.

Using HDSDR with HF Transceiver  (Examples of using RTL-SDR in uBITX #2) Modified - Add Videos CAT Support uBITX Firmware CEC Version supports SDR connections from Version 1.07. http://www.hamskey.com/2018/04/how-to-connect-sdr-rtl-sdr-to-ubitx-and.html