Use a zone scanner to scan for the zone. Mask out the existing zone and subtile coords on the output and feed that into a zone controller. That then sets the tile to no zone and the zone scanner scans the next tile. One zone tile every 2 ticks will be erased or 30 zones a second and you quickly ...

oh,I made a mistake. I don't mean signal, I mean zone mark set by programmable structures

Had much fun with AAI mods, but now I am in trouble cause the programmable structures set signals too far I cant reach and I cant place a radar there,any way to remove all signals on the ground? Also, is distance signal scaning a circle that take the
structure as the centre of circle and the ...