Yes, baby!
About an hour ago I found little cheat to make antenna work perfect despite additional "pseudo-sensor" and now I am testing final configuration near Plymouth. All ships beautifully show up on the radar screen at set maximum distance of 10 km (actual was 10.5 km) but not before it and just 5 minutes ago I've heard happy voice announcing "Single contact! Long Range!" that is definition of "radar contact" and I see two airplanes got detected by radar at distance set maximum distance of 20 km. Game treats them as "merchant" and contact shape is square but there two of them overlapping each other and they moving very fast. They will turn into regular shape as they will getting closer.
I was very nervous about guy announcing airplanes - so message in the box can actually reset Tx to 1 as it does with any other visual or sonar station announcement.
It was setting for FuMO-30.
Now I have to run FuMO-61 and FuMO-65 and working radar station - here we come.
You are going to love this thing. Before my favorite spot in the sub was captain's bed (

), but now I put tactical map in the corner, radio or gramophone on top of it - and staring into oscilloscope for hours

.
It works especially awesome with light time compression like 4x - does not miss any contacts.