Stealth, radar bands, and SEAD priorities

Can changing radar wavelength defeat stealth aircraft?

It can reduce the aircraft's stealth advantage and increase detection range. That radar may then become a priority SEAD target.

Stealth is strongest against the radar bands for which an aircraft is designed, while exotic or less common systems may detect it at longer range. A different radar band changes the engagement geometry and can make that system a priority target for suppression. Stealth extends an advantage; it never guarantees invisibility. A later air-show example adds that detecting a B-2 in ordinary flight, without its full operational profile and electronic support, does not reproduce a combat penetration.