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Homer, thanks for the patent.


My intention in this thread was to hopefully demonstrate using an A/P model, that was in error, and that error resulted in the gain being overstated. These two models at 144 MHz show gain >4.00 dbi to be overstated similar to what Avanti published in their ads @ 4.46 dbi.


Homer, I was working on the history of the A/P and I found an old model that showed the gain overstated @ >4.00 dbi.


I said to myself "WA-LA" maybe this is how Avanti got the big gain they reported for this vertical 1/2 wave antenna.


I know a 1/2 vertical mono-pole will not produce 4.46 dbi gain. It is closer to 2.14 dbi. It is also my opinion that steering the TO angle of the A/P, if possible other than changes in elevation, those results would be minimal at best, and will only happen in a Free Space model. 


Based on my models, I have never seen an A/P over Real Earth suggesting steering. Avanti is showing us FS models and they tell us "...measurements are given in Figure 1, along with the calculated performance of a 1/2 wave antenna in free space, for comparison" 


Check out the last sentence above Fig 1, in the report I posted in my post #1.