Topband: CAT6 Feed Line

[Mikek]

Now that I have the CAT6 feed line ingress mostly tamed.
(Installing the isolation transformer did that.)
What methods can I try to reduce the ingress even further?

  I have tried coiling the CAT6, 15 turns in 8" coil. That increased
the ingress. I have a huge Iron core toroid, 15 turns on that also
increased ingress. (I know wrong material. but it was there)
  I tried a much smaller CMC, it didn't help or hurt.

So, What methods can I try to reduce the ingress even further?

                               Mikek KF4ITA