on the radar (screen)
Considered important or noteworthy; within the spectrum of (someone's) awareness, attention, or consideration. If you want this issue to be on the radar of mainstream America, you have to frame it as something that will hit people in their wallets. There are always going to be bands who suddenly appear on the radar screen, only to fade into obscurity just as quickly.
on (one's) radar/radar screen
In one's conscious awareness as a possibility or as an existing phenomenon: The governor said that running for president was not even on her radar screen.