Why are odd-order intermodulation products, created within a receiver, of particular interest compared to other products?
Odd-order products of two signals in the band being received are also likely to be within the band✓Bonne réponse
Odd-order products are more likely to overload the IF filters
Odd-order products are an indication of poor image rejection
Odd-order intermodulation produces three products for every input signal within the band of interest
Explication
Third-order products of two signals fall at twice one frequency minus the other, only about one channel spacing away from the originals, so odd-order products of two in-band signals land inside the band being received and cannot be filtered out. Even-order products fall far away in frequency and are easily removed.