Hambuilder Antenna Tuner prototype


This prototype inspired by MFJ-928 or KAT100 or ATU from OM K2ZAR Automatic Antenna Tuner from internet. On diagram below show the basic concept but I considered not to use Z sensor and frequency counter to make it simple for now and may be will adopt later.

 

HBRATU Panel

 

HBRATU control board

 

HBRATU main board

 

Refference:

http://www.ok2zar.cz/php/show_page.php?soubor=auto_tuner/auto_tuner.html
http://www.mfjenterprises.com/Downloads/index.php?productid=MFJ-928&filename=MFJ-928.pdf&company=mfj

 

Hambuilder Team

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