If you need to mount an antenna NEAR power lines, there's a simple rule.I may have 5ft to the left but that's where the line is
I would NOT run the coax parallel or near the power line. That will induce electrical NOISE into the receiver. BAD idea.Mast will ne on the ground maybe 6" in for support antenna will only be maybe 5foot above roof
For the frequencies that you are receiving I would try to stay with LMR-400 for the entire run, at least until you get a foot or so from your radio, then you can use something more flexible for a short jumper. They do make an ultraflex version of LMR-400 as well. If 400 is too large to get through your opening at a minimum I would probably use LMR-240 or 240 Ultraflex.Mast will ne on the ground maybe 6" in for support antenna will only be maybe 5foot above roof IS-B50LN-C2 is the resister I have and Im using LMR400 to the suppressor and lmr200 flex 5ft to the radio Id need more LMR200 flex like 10ft not sure what the loss would be or is there a lower loss flexable cable to run from the surg to the radio?
other side would require a new rod
Here is a better rough diag all grounds bonded to ac ground rod. surge arester and pole bonded to ac ground