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

1. Added or improved in V0.53

  Please see the link below for revisions and improvements until Version 0.40
  (Do not download the firmware from the above page. old version)
  http://www.hamskey.com/2019/03/released-eu1ky-antenna-analyzer-version.html

  Please see the link below for revisions and improvements until Version 0.34
  (Do not download the firmware from the above page. old version)
  http://www.hamskey.com/2019/03/released-eu1ky-antenna-analyzer-version.html

  Please see the link below for revisions and improvements until Version 0.21
  (Do not download the firmware from the above page. old version)
  http://www.hamskey.com/2019/03/release-firmware-cec-version-021-for.html


1.1 Audio DSP function added

This is an Audio DSP that uses a microphone attached to the STM32F746 board.


It is a function to filter the sound frequency range coming from the radio.

Band Pass Filter (50Hz, 100Hz, 150Hz)


User Filter (Variable Bandwidth)

Please refer to LInk below for how to use 'Audio DSP'
http://www.hamskey.com/2019/05/how-to-use-audio-dsp-on-antenna.html





1.2 The frequency of WSPR has been expanded.
In the 2m band, the Si5351 clock must be stable. I recommend using 27Mhz TCXO for wspr on 2m.
You can use any oscillator in any band except 2m.

Videos related to WSPR will be posted soon.

1.3 I have changed the GUI of 'Single Frequency' and 'Tune SWR'


Single Frequency


Tune SWR

1.4 I changed the GUI of S21-Gain to increase the size of the Auto button.

1.5 Other minor updates
  - Apply default settings to users who are new to WSPR
  - Fixed an issue where fonts would go out of range in the LCR meter.

video of brief introduction to Version 5.0.

My development board configuration values and calibration test


https://drive.google.com/file/d/12jHjQ6NNFlgPCNg6xkl4IH6zr334eHpA/view


stabilized version : http://www.hamskey.com/2019/03/eu1ky-antenna-analyzer-cec-stabilized.html

The current stable version is V0.40.

Thank you for your test.
Ian KD8CEC