I now use the new big K9AY++ box including OLI IP12 controller from hamparts.shop, see

https://hamparts.shop/k9ay-rx-antenna-remote.html

This new K9AYY++ solution has the advantage that the antenna can be operated locally via the controller AND can also be controlled remotely via the internet in almost all functions. So you can tune the antenna perfectly and use it afterwards over the net without any problems.

The circumference of the loop is still 25 metres, important is a very deep construction of the lower limb to increase the directivity (actually the attenuation of the unwanted direction), the developer Jan makes extensive details and sketches in the mentioned link.

Due to the cows in the pasture, I cannot position the antenna optimally, but I am nevertheless very satisfied with the first results. Now the coaxial and control cables have to be laid underground, and then autumn can come with its Asian signals on medium wave.