Unusual reaction with Lrods

[fredrico]

My set up is DDS generator at 8.7k square wave, two ground probes and two Lrods. So recently while hunting, had strong reaction or rods crossed at, lets say 120 degrees of the circle around the probes but then at exactly +180 degrees or 300 degrees, the rods didn't cross but they both pointed back toward the 120 degree point. These were strong readings. Just wondering if anyone else might have had some reaction like this.
thanks