KD8CEC Amateur Radio

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.

Release EU1KY AA Firmware CEC Version 0.40 ( How to using WSPR, FT8, JT65 TX Mode) 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 V0.35 has been released, and stabilized version is posted separately. stabilized version :  http://www.hamskey.com/2019/03/eu1ky-antenna-analyzer-cec-stabilized.html

Release Firmware CEC Version 0.33 (Issue found and fixed) for Antenna Analyzer(EU1KY) Stabilized version V0.35 has been released, and stabilized version is posted separately. Please download the latest stable version from the link below. http://www.hamskey.com/2019/03/eu1ky-antenna-analyzer-cec-stabilized.html The stable version will continue to be updated on the Link above. ---------------------- Version 03 has been added with some improvements and some simple features. A brief introduction is given below. Beginning with version 3, data conversion utilities are provided for antenna simulation or Matlab use. - Reasons for changing from Version 0.30 to Version 0.33 -> Version 0.34 (Stabilized version) As the memory usage increases, it seems that interference occurs in the communication with sd-ram. I've used as much memory as possible to reduce interference. I have made some modifications to avoid memory interference and it seems to be working normall...