Since I installed the single phase T-bolt on our deck, today was the 3rd successful "last-Friday-of-the-month" test. This time, I ran a long wirepair into the house, and activated the siren from inside. I ran 3 full cycles . The first two Friday tests were done from the key switch installed near the siren. A bit loud being so close!
I have it just about set perfectly for how long the blower stays on after the power to the chopper is cut, and it sounds great! For the next test in July, I'll set up to get a GOOD audio recording of it. Time permitting, I MIGHT EVEN have the other T-bolt; a 3-phase single tone 1000, installed on a pole at the other end of the ranch... Doubtful for July though. Aiming for August.
Charles