I know how powerful and gamebreaking this mod can be... but.
Is it possible to merge those structures creating one that works as an I/O port similar to radars but with custom cross-surface channels?

Hello, thank you for taking the time to comment.
What you are asking for is possible, but it is something I would not like to do with this set of images.
If you can give me another set of images that I can use for this sole purpose, I will gladly do so.
That way, there will be no confusion with this MOD or with the original MOD.

I was thinking of upgrading vanilla radar or in order to not pollute vanilla radar entity I'd just use the base of the radar without spinning dish or even better the old beacon sprite. Sadly I am definitely a form over function kind of pearson.

I think not messing with vanila radar code is better since they don't operate exactly the same. A simple 1x1 old beacon sprite would work well as just another circuit connections component. I didn't think about balance(for referance I use "Passive Power Combinators" to remove the bother of powering circuit logic and as protection form errors due to power problems) since I'm interested in functionality for a self-managing system that can control planets and platforms without a need to place dozens of giant structures just to send sanitised signals without a need to encode them.

If you were to make it balanced eg. Giant structure, lategame research, high power demand I'd edit that out myself if possible.
Basicly this is just an idea of channeled radar signal transmition so "Wireless circuit connection" balance be damned just the idea alone flips the game on its head.

If the problem is the size, then I can make some modifications and make the antennas measure 1x1.

What do you think about this? Would it work for your needs?

Not exactly. It's not the size and power draw just bother me but the fact that one structure can't both recieve and send is the core issue. If they worked like radars but with cross-surfsce channels I wouldn't even bother you and change the size and power draw myself but I have zero confidence in messing with our logic for circuit signal transfer.

I understand. I will create a variant of this MOD in which an entity allows signals to be sent and received.

I don't have much time right now, so I will publish it between the 15th and 28th.

Take you time, I'd never dare to complain over someone doing something out of goodness of their heart. Thank you for agreeing to my idea:D

Regarding my idea of combining your buildings, there seems be a mod that matches my idea quite well but has reports of poor performance which made me wonder if my goal of around 100 antennas is even close to realistic or if I'll have to readjust my aproach about a central processing unit that recieves and sends information to prodution blocks on planets and platforms. https://mods.factorio.com/mod/Multi_Circuit_Repeater

I see where the problem lies; it's not designed for so many entities.
To be honest, my MOD has that problem too.
I'll keep that in mind when rebuilding mine, and I'll even improve this MOD.

That's some impressive dedication, sadly all I can do is wish you good luck on this endevor.