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Showing posts from February, 2019

What's new with uBITX V5. #2 - LPF and other (Download Firmware CEC Beta for V5 )

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.

At the end of this article is a link to download a CEC firmware test version.

4. Antenna Analyzer(EU1KY) - How to Setup and Calibration

4. Antenna Analyzer(EU1KY) - How to Setup and Calibration
The setup and calibration methods are the same for most firmware, Only the menu position is different.
I will use AA Firmware CEC version for convenience.
(AA firmware CEC Version will be released within one week.)

What's new with uBITX V5. #1 - Changed IF frequency

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.

3. Antenna Analyzer(EU1KY) - How to update the firmware

Antenna Analyzer(EU1KY) - How to Firmware Update  You can easily find some Firmware for Antenna Analyzer(EU1KY) on the internet. I will also release imporved firmware soon.

if you have AA (EU1KY's antenna analyzer), you cans use all the firmware. i will try to explain it in this article


(AA firmware CEC Version will be released within one week.)

2.Assembling the FAA-450 Antenna Analyzer(EU1KY) - include some DH1AKF mod, KD8CEC mod

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.



1.FAA-450 Antenna Analyzer (EU1KY) Introduction

1.FAA-450 Antenna Analyzer (EU1KY) Introduction I recently received a RF board. It is in the form of a docking board on the STM32F746 Discovery board.
When you connect the RF board and the STM32F746 Discovery board, they operate as a very good antenna analyzer.

1.Introduction (this article) - http://www.hamskey.com/2019/02/faa-450-antenna-analyzer-eu1ky.html
2.Create FAA-450- http://www.hamskey.com/2019/02/assembling-faa-450-antenna.html
3.How to update the Firmware - http://www.hamskey.com/2019/02/3-antenna-analyzereu1ky-how-to-update.html
4.How to Setup and Calibration - http://www.hamskey.com/2019/02/4-antenna-analyzereu1ky-how-to-setup.html 5.Principle of Antenna Analyzer
6.Antenna Analyzer Firmware Improvement



As well as a general antenna analyzer, it is possible to measure the phase so that the characteristics of the antenna can be easily grasped.

 I accidentally used this antenna analyzer, but it was incredible. So I decided to analyze this antenna analyzer a little bit more and …