If I feed an antenna with a parallel feed where do I ground the
station?? At the transceiver after the tuner??

---------- -----------
| |
| |
| |
| |
| | +---+ +-----+
| ===========|TUN|======| TX |
+---+ +-----+
|
|
|
\ /
V

Or should I be grounding at the tuner or one side of the feed line??

I intend to build a "spark plug" type lighting arrestor.

Thanks,

de ka2pbt