Whip lengh wilson 2000

Assuming no water leaks into the load, the shaft will work fine. Whip length shouldn't change much. On a Cascadia, 3 foot shaft would be a minimum length I'd use .

 

Stinger will be short...Probably just a couple feet or less...

 

If it was short to begin with. Changing shaft length shows similar results to changing cable length. Adding 3 feet of shaft under the load might require subtracting an inch of stinger above the load.

 

way I read that, was he had a shop build him a longer (36") lower shaft for the antenna...I'm assuming the original shaft was probably 5 to 10" long...If you remove the shorter shaft and stick a longer one on, the thing will still tune to about the same height as before, because you didn't change anything with the coil...Stinger would have to be shorter to compensate for the longer lower shaft.

 

Not as much as you might think.
Anything below the load has minimal effect on the tune while anything above the coil has a drastic effect on the tune.
Adding 4 feet below the coil doesn't drastically affect the tune. An inch or two off the top usually brings it back to resonance.

 

I'm going by my dealings with the Predator 10K antenna's...Example: A single-coil Predator 10K with lets say a 12" lower shaft tunes at around 7'...a single-coil 10K with a 22" lower shaft also tunes at around 7'...The difference is the stinger get's shorter with the longer lower shafts, but the over-all height of the antenna stays fairly close to the same...might be a inch or more in height difference, but not much.

Now...go changing the number of turns in the coil, then there's a pretty significant change in the over-all height...by adding just two more turns of coil can drop the height of the antenna by a foot.

He didn't say how long the original shaft was...I'm assuming it's either 5" or 10" because those are the two most popular shaft lengths with the Wilson 2000...going from 5" to 36" is a pretty big jump.

 

Results will be drastically different when comparing the changes on the mirror arm of a truck as opposed to a sheet metal roof of a car or suv.
Maybe ground potential makes the change more drastic?
Better ground = less change
Worse ground = more change?