Attack of the RFI

After having a successful setup of the radio shack over the weekend, I took the HF rig to the local radio club, but when I returned, and plugged everything back in, BUZZZZZZZZZ. S20 over 9 noise. not good.

Troubleshooting kicked in. Whats changed? Earlier in the afternoon I had put up the 6m dipole antenna and finished working on installing an earthing stake and earth wires back to the rig. By process of elimination, I removed each. Noise still there.
It was late in the night by this point so I made an assumption that the noise was in fact being caused by nearby power lines having damp insulators, so went to bed with the though of investigating the issue if it existed the following day. Yes, it did exist the following day.

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