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Overlaying the two patterns of in-phase and out-of-phase:
Figure 5
If signals arrive in a null of the in-phase pattern, changing to out-of-phase can result in almost 40
dB increase in field strength.
In the pattern above, Blue is out-of-phase. Red is in-phase. This pattern demonstrates why the real
advantage is filling of nulls. Note the blue trace is 2 to 3 dB down from the in-phase gain, so it
primarily fills nulls.