Regardless of the outcome I thank you and
@wx2watch for taking the time to do the testing and expenses that were incurred both for equipment and travel. There are a lot of thing to be considered when doing antenna testing. SWR, antenna resonance (and no they're not the same always) how the radio sees that particular antenna system (final efficiency out the coax) and other things.
When we did some testing in the mid 90's, had some "funny" things occur. Our test equipment was an IFR-1200SS for the spectrum analyzer and we tested at about 3"ish" air miles. We used the same radio, and the same person in the mobile saying the exact same thing every time for the test. If I were to recreate that test today I'd probably use a steady tone to modulate the radio. All testing was done on AM on 27.225 with about a 4"ish" watt carrier. Honestly if I had that to over I would have used a different radio and used something with variable power just for giggles and grins.
There were times, the antenna that did not have the highest reading on the spectrum analyzer had louder audio. We made note of this and went back to those antennas more than once, and we got the same results every time. We NEVER referred to the antenna by brand or anything else, simply numbers, and there were at different times 3-4 people listening and they also picked the same antenna for loudness. We could only surmise that varying conditions in the actual antenna system affected the final output to the antenna. I know now, we should have done this test at different distances. Perhaps 3 miles, 5 miles, 7 miles, 10 miles and perhaps further?
Obviously there were varying SWR readings, however none were above 1.3 if I remember correctly on the chosen frequency. All were tested on a magnet mount, with either the cable that came on them, or we made a center -ring_ for the 3/8 24 mount that we used on a triple magnet mount. All were placed as close to the center as possible on a 1995 GMC Jimmy (mine) at the time.
I certainly wish I still had all those notes, and frankly if I were to do it again today with our technology, I'd do video as
@niceguy71 has done.
I fully endorse the Tiny SA and a 1/4 wave whip as the baseline, that would be great. While not a $10.000.00 (or more) analyzer, the ones we checked recently (Tiny SAs) were good enough for the testing antennas like this in somewhat controlled conditions. Besides who doesn't like to have more toys to check stuff with!
That's a nice offer
@prcguy has laid out to you. Actually the results are pretty much self explanatory out of the tiny SA, and not really subject to much confusion once it's set up. You'd only need post photos of it all, and I'm sure many of the guys here would gladly look at them.
Like he
@prcguy said it wouldn't take long at all to key up, snap a photo and move on to the next one.
Anyway thanks again for all your time, money and effort. Have fun and keep on learning!