This is the way I do it and I like it.

I run all my short-wave and scanners of 12v car batteries:
I have a cheap 12v battery charger from PIP Boys ($29) to recharge the
batteries after I turn off the radios. I DO NOT charge them while I am
using the radios because I want to keep the AC hum away from my radios.
I use wet batteries with caps so I can add water as needed, I set them
on a piece of wood for the garage battery and have a plastic box for the
house battery. If your wife doesn't like the battery in the house run
the wife off.

Grounding antennas and mast:
I use a telephone grounding block on the antenna leads at the first
place it touches the house grounded to a ground rod, all of this is at
the bass of the mast. I put the bottom of the mast about 6 inches in the
ground beside the ground rod. Because I live in the dessert I have 24
rose bushes on a drip watering system so I just added a drip at the
ground rod and it and the mast get 20 minutes of drips twice a day. I
also ground the sheath on the coax cable I use to feed into the house
and garage and keep ALL THE ABOVE AWAY FROM ANY AC WIRES OR LIGHTS.

Use the grounds, no playing or you will burn your house down at
sometime. NOTHING WILL STOP A DIRECT LIGHTNING STRIKE BUT THE STATIC
FROM A CLOSE (one mile ) WILL BURN UP YOU RADIOS.
Be sure to get lots of "carbons" when you get the grounding blocks
(Graybar has them) and replace them after a lighting storm.

My time on the soap box about grounding this year. I'm going to the
gym, Cya

Burr