Stealth is a buzzword, please keep in mind that long wave radars detects the minuscule radar cross sections of "stealth" platforms. It can still be detected by a sufficiently powerful radar or at sufficiently close ranges. Dual-band radars are more effective against stealth than disjointed sensors, being able to focus the high-frequency beam to track the blips spotted by the low-frequency one. Pardon me while I geek out: At a low enough frequency, one cannot use angled surfaces to deflect the re-radiated radio frequency (RF); even a very thin wire one half wavelength long is optimally sized...