I check it and you are true.
Seems like Devs know this issue, but they don't have much interest on this topic.
Here is a thread two years ago.
Thanks, I had forgotten about this post. However I think there are two separate issues:
1) Ground search radars have an extremely small initial detection range (if they are not GMTI). As Dimitris said in the quoted thread, ". It's a delicate subject, because the flip-side of it is units legitimately using ground clutter to hide themselves (e.g. small ships close to the coast, or vehicles in rough terrain). " That's very true, and how to accurately represent wide-area search in the presence of ground clutter is a hard question for the game designers. As such, it is out of scope of the Tech support forum.
2) Imaging radars (SAR and ISAR) that have detected the target by themselves, or been given the location of the target by a third party, are unable to classify it. I think that's fair game for the tech support forum, because it is a case of a feature not working as designed: the position of the target is known, so ground clutter vs area search issues do not matter, but the radar still is not working as advertized.
I propose to solve it the following way:
-initial detection ranges stay the same as currently
-for surface targets, give classification ability to radars with SAR or ISAR in the name or with the SAR tag. This represents operation against moving targets, which degrades the resolution of SAR sensors.
-for ground targets, give classification and identification ability to radars with SAR in the name or with the SAR tag. This is because against fixed targets SAR has better resolution.
-these classification and identification abilities work at the full radar range (ie surface search detection range), since they do not represent wide area search
-Arguably all AESA radars post-2000s should be able to perform SAR
3) bonus: detection ranges for radars should not be reduced if the target already has a moderately accurate initial detection from another sensor. In that case, it's no longer a wide area search problem, so the radars should be working at full radar ranges (same as surface search range).