In the previous chapter, we examined the principal types of electronic countermeasures (ECM). We learned how each type is implemented and what its limitations are. In this chapter, we will examine some of the important electronic counter-countermeasures (ECCM) which have been devised to exploit the limitations of ECM and so defeat them. We will begin by examining the conventional techniques for combating noise jamming, gate stealing, and angle deception. We will then look at some significant advanced ECCM developments which promise quantum jumps in a radar's ability to contend with severe noise jamming, as well as with various other ECM.