KD8CEC Amateur Radio

Release EU1KY AA Firmware CEC Version 0.71 ( V1.0 Candidate) Changed from Version 0.70 to Version 0.71 At the request of the testers, the tuneSWR source code was restored to Version 0.53 code. All functions are the same as V0.70. Only tuneSWR has changed. This version is a development version and may be unstable, and some of the features included in this version may be removed from V1.0, Stabilized version V0.53 has been released, and stabilized version is posted separately. stabilized version :  http://www.hamskey.com/2019/03/eu1ky-antenna-analyzer-cec-stabilized.html

How to use Voice Keyer in EU1KY with CEC Firmware V0.7 Version 0.7 is being prepared for deployment. Voice Keyer (or Voice Recorder) function was added in Version 0.7. If you only want to use it as a voice recorder, you do not need any modifications, Just need update the firmware. If you want to use it as a Voice Keyer, you need a very simple modification. 1.Modifications for use as a voice keyer 1.1 PTT Control Below is just one example. Only the part with PC817 is shown below. 1.2 MIC Input It uses a push switch to switch between microphone and AA. It is recommended to pass a small transformer between the transceiver and the AA.  Please use only one (Left or Right) because the speaker jack of AA is stereo. Recording and playback will operate in stereo. You can use either the left or the right one for you. 2.How to use Voice Keyer 2.1 Use Voice recorder Touch the 'Voice Keyer' The 'USB Host' menu has been moved to the Configuration secti...

Release EU1KY AA Firmware CEC Version 0.53  This version is a development version and may be unstable, and some of the features included in this version may be removed from V1.0, Stabilized version V0.40 has been released, and stabilized version is posted separately. stabilized version :  http://www.hamskey.com/2019/03/eu1ky-antenna-analyzer-cec-stabilized.html

How to use Audio DSP on Antenna Analyzer (Features included after CEC V0.5) Audio DSP is a function that filters the sound coming from the transceiver into a desired range. You do not need any hardware changes to use this feature. Just prepare your headphones. If you want to make a little bit better, you can add a very small $ 1 speaker to your board. I am preparing to distribute the test firmware (V0.52). Please wait 1 ~ 2 days.

Installing SWR and RF Power Sensor in uBITX I modified the I2C Type Signal Meter firmware to display SWR when using Nextion LCD in uBITX. Release I2C Type Signal Meter firmware V0.8, If you want something stable, use V 0.7 (V0.8 is a beta version) Now if you are using the I2C Type Signal Meter, you do not need to update the uBITX firmware and the Nextion LCD GUI. You only need to upload the firmware of the I2C Type Signal Meter to V0.8.

Release CEC Firmware v1.121 for uBITX V5 I did some experiments with the help of a beta tester with V5. he experiment was mainly to pass the modified filter. You can see videos related to the experiment below. (The firmware download link is at the bottom of this post)

What's new with uBITX V5 #2 -  LPF and other UBITX Version 5 with improved  filter for spur has recently been released. I always appreciate Ashhar Farhan, who always makes great work. Information on uBITX Version 5 can be found on the link below. and you can download to sourcecode with schematic https://github.com/afarhan/ubitx_v5 uBitx v5 Changes https://groups.io/g/BITX20/wiki/uBitx-v5-Changes. What's new with uBITX V5 #1 http://www.hamskey.com/2019/02/whats-new-with-ubitx-v5-1-changed-if.html At the end of this article is a link to download a CEC firmware test version.

What's new with uBITX V5 #1 - Changed IF frequency UBITX Version 5 with improved  filter for spur has recently been released. I always appreciate Ashhar Farhan, who always makes great work. Information on uBITX Version 5 can be found on the link below. and you can download to sourcecode with schematic https://github.com/afarhan/ubitx_v5 uBitx v5 Changes https://groups.io/g/BITX20/wiki/uBitx-v5-Changes.

This document will continue to change as we make changes or additions. If you have an antenna board, you can make your own antenna analyzer in 30 minutes. also, you can buy assembled finished products. If you have purchased a finished product, just follow the modifications below. This document was changed on March 28. In order to prevent mistakes due to different output lines for each RF board, Piezzo connection, RTC connection, Battery voltage connection. mar/26 version for developer (my developing environment) added power, rtc, piezzo, s2 port, and changed wire color for vi, vv -> left, out

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.

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 

How to use uBITX CEC Firmware Source CEC Firmware is based on unmodified uBITX. Starting with the 1.7x version, we started to support various LCDs, and 1.9 supports Nextion LCD. Signal Meter was supported in version 1.8, Starting with Version 1.9, I2C Type Signal Meter Sensor (Standalone Signal Analyzer) is supported. These compile options are described in 'ubitx.h'.  This post explains how to configure ubitx.h.

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 #3 - Advanced and FFT This is the last section of the Standalone Signal Analyzer. Describes applications on uBITX and Nextion LCD. 1.Create and use with Character LCD 2.For Nextion LCD 3.Nextion LCD Advanced

Standalone Signal Analyzer (I2C Type Signal-Meter) for uBITX #2 - Nextion LCD Used in the same way as Character LCD, Additional features are provided when used with Nextion LCD 1.Create and use with Character LCD 2.For Nextion LCD 3.Nextion LCD Advanced

Setting CW options in uBITX with Nextion LCD (Version 1.097) This document is intended to explain before you deploy 'CEC Firmware Version 1.097' CEC Firmware Version 1.097 will be released within one week. 1.CW Options settings in Nextion LCD Added the ability to set CW Options at GUI by user's request. Of course, CW options can be set in the same way as Character LCD. We call it Text mode.  However, we added the CW option setting function in Version 1.097 so that it is more convenient in the GUI and can be quickly changed during CW operation.

CW frequency in ubitx This article is about CW frequencies on uBITX radios. Maybe you already know. If you already know, please refer to chapter 5 below only, This article is for beginners like me.  1.The CW frequency display method in uBITX has been discussed for a long time. Search for 'ubitx cw frequency' or 'bitx cw frequency' in Google. In particular, mike, the operator of uBITX.net, has clarified the CW Frequency. https://ubitx.net/2018/07/02/kd8cec-firmware-hint-cw-frequency-display/

How to use memory channel in uBITX with Nextion, TJC LCD CEC Firmware supports a variety of LCD Types (The 16x02 LCD included with uBITX, 20x04 LCD, I2C type LCDS, and Nextion or TJC LCD) The memory channel in uBITX started to be supported by CEC Firmware Version 1.0 The basic usage is the same in the latest version

uBITX Firmware CEC Version 1.095Beta  Release (Include  Nextion LCD and TJC LCD GUI Firmware V2) 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 from 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.

uBITX with Nextion LCD (CEC Firmware) -  Installation and Introduction uBITX CEC Firmware supports various LCD since Version 1.08 (16x02 Parallel, 20x04 Parallel, 16x02  I2C, 20x04 I2C, 16x02 Dual LCD with I2C). Supports Nextion LCD (Graphic LCD) from Version 1.09, Version 1.09x is primarily aimed at Nextion LCD support. Also 1.09x will continue to be Beta version. If you want a stable version, please use 1.08 or 1.1 version to be released in the future.