I've updated the user guide for vna/J.

The firmware update function is now available, even if no calibration data is loaded. This update relates to this post.

Please check it here.

You can buy the author a beer to support the further development of vna/J.

Please use this PayPal link.

Many thanks in advance for this donation!

You can contact me by email icon or via Twitter @dl2sba

2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.