*tears of joy in my eyes*
Congrats on having the guts to go for Level 1 AFF on your first jump instead of the tandem progression, that takes balls. ! !
The automatic activation device (from now on referred to as AAD) would activate at 750 ft. if the skydiver was still in freefall for an expert ( as opposed to a student ) and higher for a student rig like the one Patrick here used but I don't remember how high. Cypress and Vigil are two popular brands in the sport.
750 ft at 120mph ( freefall speed on the belly) is three to four seconds before impact. That is way low and no one should ever rely on it to save his life. They work and have saved lives but they are a last resort to a critical problem. In doubt, cut away and pull the reserve yourself is the short answer to a major malfunction.
Some DZs rquire the use of AADs, they are mandatory if you want to jump there. Other let you free to use them or not.
BTW, Patrick your pilot chute is dragging.
And that smile my friends is something I see every time I visit any DZ.
Someone just went past his survival instinct by climbing out the door of a flying aircraft and accomplished the dream of human flight. Beautiful !