Total posts : 45366
Mark your tests were a good followup to what I was doing before being “outed” by loud whistle blowing pointers.
The main point is that the BETS signal level does conspicuously better than 15.239.
In fact you got impressive results for having the transmitter so low in the building. The lesson from that, without doing any more tests, is that if the transmitter were up higher, it would cover more range.
The “Gaggle Map” showed the North American Continent but there was no star leading to your location. That’s o.k. Your word description was clear.