Those aluminum ladders are not as strong as I'd lke.
For 2 meters I use two antennas, For the cockpit radio I have a Diamond dual band NGP type (no ground plane) antenna that I mounted on one of the VELVAC mirror arms.
For the "Main" radio in the "Shack"/half bath I have a J-pole encased in 1/2 inch PVC pipe (nylong clamps) to the back of the rig.
It is strong enough to survive a tree strike'
For improved range I use a flag pole with an antenna platform and another "J" (Actually a "T" pole, that is 2 J-poles, kind of hard to explain without a picture)
What I"d recommend for you is a flagpole buddy on the ladder, then a 10' section of either 1/2, 3/4 or 1" PVC (or 3/4 inside of 1" with a J-pole inside for 2-mtr FM parked
The Diamond on the mirror works great for mobile.
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